{"title":"LDPE Pond Liners UK | Budget-Friendly, UV Resistant | 15-40 Year Guarantee","description":"\u003ch2\u003eLDPE Pond Liners UK — Budget-Friendly, Flexible \u0026amp; UV Resistant\u003c\/h2\u003e\n\n\u003cp\u003eLDPE (low-density polyethylene) pond liner is the most affordable synthetic pond liner available in the UK. Lightweight, flexible, and chemically resistant, LDPE offers solid performance at the lowest price point — making it the go-to choice for cost-conscious pond projects, agricultural applications, and any use where budget is the primary consideration.\u003c\/p\u003e\n\n\u003ch2\u003eWhat Is LDPE Pond Liner?\u003c\/h2\u003e\n\u003cp\u003eLDPE is a thermoplastic polyolefin with a highly branched molecular structure that gives it greater flexibility than HDPE. Its low density (0.910–0.925 g\/cm³ vs 0.940+ for HDPE) makes it lighter and more pliable — important for handling on site. UV-stabilised LDPE pond liner includes carbon black or UV stabiliser additives that significantly extend outdoor service life beyond unstabilised polyethylene.\u003c\/p\u003e\n\n\u003ch2\u003eLDPE vs Other Pond Liner Types\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eLDPE 0.35mm\u003c\/th\u003e\n\u003cth\u003ePVC 0.50mm\u003c\/th\u003e\n\u003cth\u003eEPDM 0.75mm\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuarantee\u003c\/td\u003e\n\u003ctd\u003e15–25 years\u003c\/td\u003e\n\u003ctd\u003e20–30 years\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice per m²\u003c\/td\u003e\n\u003ctd\u003e£1.10–1.65\u003c\/td\u003e\n\u003ctd\u003e£1.40–2.20\u003c\/td\u003e\n\u003ctd\u003e£2.80–4.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexibility\u003c\/td\u003e\n\u003ctd\u003eMedium-high\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eVery high\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV resistance\u003c\/td\u003e\n\u003ctd\u003eGood (stabilised)\u003c\/td\u003e\n\u003ctd\u003ePoor (degrades)\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold weather\u003c\/td\u003e\n\u003ctd\u003eFair (stiffens below 0°C)\u003c\/td\u003e\n\u003ctd\u003ePoor below 5°C\u003c\/td\u003e\n\u003ctd\u003eExcellent to -40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFish safe\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes (certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eLDPE Applications\u003c\/h2\u003e\n\u003ch3\u003eGarden Ponds on a Budget\u003c\/h3\u003e\n\u003cp\u003eLDPE 0.35mm is the entry-level choice for garden ponds where budget is the primary concern. Well-protected by planting and stone margins, LDPE delivers practical service life at minimal cost.\u003c\/p\u003e\n\n\u003ch3\u003eAgricultural Irrigation Ponds\u003c\/h3\u003e\n\u003cp\u003eLDPE is widely used for agricultural water storage and irrigation ponds. Its broad chemical resistance (pH 3–14, resistant to most agricultural chemicals) and low cost make it practical for large-area farm pond lining.\u003c\/p\u003e\n\n\u003ch3\u003eTemporary and Short-Term Ponds\u003c\/h3\u003e\n\u003cp\u003eFor temporary ponds, construction site water storage, or any application where the pond will be removed within 10–15 years, LDPE offers the best value-for-money option.\u003c\/p\u003e\n\n\u003ch2\u003eLDPE Thickness Guide\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.30mm:\u003c\/strong\u003e Minimum specification, decorative features and shallow ponds only. Handle with care during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.35mm:\u003c\/strong\u003e Standard garden pond grade. Better puncture resistance and longer service life than 0.30mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.50mm:\u003c\/strong\u003e Heavy duty agricultural grade. Suitable for farm reservoir applications and ponds up to 2m depth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\": \"Question\", \"name\": \"Is LDPE pond liner fish safe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes \\u2014 LDPE is chemically inert and fish-safe. It contains no plasticisers (unlike PVC) and does not leach harmful compounds into pond water. Allow the pond to fill and stand for 24 hours before introducing fish to allow any manufacturing residue to dissipate.\"}},{\"@type\": \"Question\", \"name\": \"How long does LDPE pond liner last?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"UV-stabilised LDPE pond liner carries guarantees of 15\\u201325 years depending on thickness and grade. In practice, service life depends heavily on UV exposure \\u2014 LDPE with margins protected from direct sunlight by stone edging or planting will last longer than exposed LDPE. For maximum longevity, EPDM (25-year guarantee, inherent UV resistance) is the better choice.\"}},{\"@type\": \"Question\", \"name\": \"What is the difference between LDPE and HDPE?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"LDPE (low-density polyethylene) has a branched molecular structure that gives it greater flexibility than HDPE. LDPE is lighter, more pliable, and lower cost \\u2014 but has lower tensile strength and lower UV resistance than HDPE. HDPE is GRI-GM13 specifiable with welded seams and is used for commercial\/civil applications. LDPE is primarily used for budget garden and agricultural applications.\"}}]}\u003c\/script\u003e\u003cp\u003e\u003ca href=\"\/collections\/pond-liners\"\u003eView all pond liner types →\u003c\/a\u003e | \u003ca href=\"\/pages\/get-expert-advice\"\u003eFree expert advice →\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"premium-ldpe-pond-liner-0-35mm-tear-resistant-flexible-guaranteed-25-years-ideal-for-koi-wildlife-garden-water-features","title":"LDPE Pond Liner 0.35mm | Flexible \u0026 Tear-Resistant | 20 Year Guarantee","description":"\u003ch2\u003eLDPE Pond Liner UK — Flexible, Lightweight \u0026amp; Fish Safe | Long Guarantee | Free UK Delivery\u003c\/h2\u003e\n\u003cp\u003eOur \u003cstrong\u003eLDPE Pond Liner\u003c\/strong\u003e is the ideal choice for budget-conscious pond builders, smaller garden ponds, and first-time pond installations. Low-Density Polyethylene combines genuine flexibility with fish-safe certification at the most accessible price point in our liner range — making quality pond construction available to every UK gardener, regardless of budget.\u003c\/p\u003e\n\u003cp\u003eLDPE (Low-Density Polyethylene) is a trusted polymer widely used in water containment, horticulture, and food-contact applications. Its molecular structure makes it naturally flexible, resistant to cracking, and chemically inert — providing a safe, reliable pond liner for garden ponds, water features, and bog gardens.\u003c\/p\u003e\n\u003ch3\u003eFull Technical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eLow-Density Polyethylene (LDPE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e0.35mm standard grade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-10°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Resistance\u003c\/td\u003e\n\u003ctd\u003eGood — UV stabilised\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFish Safe\u003c\/td\u003e\n\u003ctd\u003e✅ Yes — food-grade polyethylene, certified safe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuarantee\u003c\/td\u003e\n\u003ctd\u003e15–25 Years (by grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexibility\u003c\/td\u003e\n\u003ctd\u003eGood — lightweight and easy to work with\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eVery light — easiest liner to handle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutting\u003c\/td\u003e\n\u003ctd\u003eEasy — scissors or sharp knife\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003e5 Use Cases for LDPE Pond Liner\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e🌱 \u003cstrong\u003eSmall Garden Ponds\u003c\/strong\u003e — Decorative goldfish ponds and small wildlife ponds up to approximately 4x4m and 0.5m depth\u003c\/li\u003e\n\u003cli\u003e🌿 \u003cstrong\u003eBog Gardens\u003c\/strong\u003e — Shallow planting areas with waterlogged conditions, perfect for marginal and bog plants\u003c\/li\u003e\n\u003cli\u003e🌸 \u003cstrong\u003eContainer Pond Features\u003c\/strong\u003e — Lining raised timber containers, half-barrels, and planter ponds for balconies and patios\u003c\/li\u003e\n\u003cli\u003e🐦 \u003cstrong\u003eBird Baths and Wildlife Drinking Features\u003c\/strong\u003e — Very shallow features for garden birds and hedgehogs needing easy water access\u003c\/li\u003e\n\u003cli\u003e🏡 \u003cstrong\u003eTemporary Seasonal Ponds\u003c\/strong\u003e — Seasonal water features that may be repositioned or altered as garden designs evolve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStep-by-Step Installation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDig your pond\u003c\/strong\u003e — Excavate to desired shape. LDPE is best suited to shallower ponds (up to 0.6m). Remove all stones, glass, and sharp roots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth the ground\u003c\/strong\u003e — A sand layer of 25–50mm significantly improves LDPE performance by eliminating sharp protrusions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLay geotextile underlay\u003c\/strong\u003e — Essential with LDPE. The underlay protects against punctures more likely with thinner material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition the LDPE liner\u003c\/strong\u003e — Very easy to handle — lightweight and manageable for one person. Unfold over the pond and drape into shape naturally\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure and fill\u003c\/strong\u003e — Fold edges under edging stones or bury in turf. Fill slowly, adjusting folds as the pond fills\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWhy Choose LDPE?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBest price point — most affordable flexible pond liner in our range\u003c\/li\u003e\n\u003cli\u003eEasiest handling — lightest liner material, easy to position and cut without assistance\u003c\/li\u003e\n\u003cli\u003eFish safe — food-grade polyethylene safe for goldfish, pond plants, and garden wildlife\u003c\/li\u003e\n\u003cli\u003eFlexible — bends and drapes easily around pond contours without cracking\u003c\/li\u003e\n\u003cli\u003eReadily repairable — LDPE patch tape repairs are quick and inexpensive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e✅ Trust \u0026amp; Guarantee\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Fish Safe Certified — Food-grade polyethylene, safe for goldfish and all pond life\u003c\/li\u003e\n\u003cli\u003e✅ Free UK Delivery — All mainland UK orders delivered free\u003c\/li\u003e\n\u003cli\u003e✅ 15–25 Year Guarantee — Reliable medium-term warranty\u003c\/li\u003e\n\u003cli\u003e✅ Expert Advice Available — Our team will help you choose the right size and grade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum pond depth suitable for LDPE liner?\u003c\/strong\u003e\u003cbr\u003eA: We recommend LDPE for ponds up to 0.6m deep. For deeper ponds, upgrade to EPDM 0.75mm or 1.0mm for better durability and puncture resistance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is LDPE the same material as plastic sheeting?\u003c\/strong\u003e\u003cbr\u003eA: LDPE is a polyethylene material, but our pond liner grade is specifically formulated with UV stabilisers, fish-safe additives, and quality controls that standard plastic sheeting does not have. Never use generic plastic sheeting as a pond liner.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use LDPE for a pond with goldfish?\u003c\/strong\u003e\u003cbr\u003eA: Yes. LDPE is certified fish-safe and suitable for goldfish, shubunkins, and most common pond fish species. For koi, we recommend upgrading to EPDM for greater longevity.\u003c\/p\u003e","brand":"PondLinersco.co.uk","offers":[{"title":"2m x 2m","offer_id":55260884500828,"sku":"LDPE-035-2mX2m","price":48.74,"currency_code":"GBP","in_stock":true},{"title":"2.5m x 2m","offer_id":55260884533596,"sku":"LDPE-035-25mX2m","price":53.74,"currency_code":"GBP","in_stock":true},{"title":"2.5m x 2.5m","offer_id":55260884566364,"sku":"LDPE-035-25mX25m","price":57.49,"currency_code":"GBP","in_stock":true},{"title":"3m x 2m","offer_id":55260884599132,"sku":"LDPE-035-3mX2m","price":68.74,"currency_code":"GBP","in_stock":true},{"title":"3m x 2.5m","offer_id":55260884631900,"sku":"LDPE-035-3mX25m","price":71.24,"currency_code":"GBP","in_stock":true},{"title":"3m x 3m","offer_id":55260884664668,"sku":"LDPE-035-3mX3m","price":78.74,"currency_code":"GBP","in_stock":true},{"title":"4m x 3m","offer_id":55260884697436,"sku":"LDPE-035-4mX3m","price":82.49,"currency_code":"GBP","in_stock":true},{"title":"4m x 4m","offer_id":55260884730204,"sku":"LDPE-035-4mX4m","price":91.24,"currency_code":"GBP","in_stock":true},{"title":"5m x 3m","offer_id":55260884762972,"sku":"LDPE-035-5mX3m","price":82.49,"currency_code":"GBP","in_stock":true},{"title":"5m x 4m","offer_id":55260884795740,"sku":"LDPE-035-5mX4m","price":118.74,"currency_code":"GBP","in_stock":true},{"title":"5m x 4.5m","offer_id":55260884828508,"sku":"LDPE-035-5mX45m","price":124.99,"currency_code":"GBP","in_stock":true},{"title":"5m x 5m","offer_id":55260884861276,"sku":"LDPE-035-5mX5m","price":137.49,"currency_code":"GBP","in_stock":true},{"title":"6m x 3m","offer_id":55260884894044,"sku":"LDPE-035-6mX3m","price":98.74,"currency_code":"GBP","in_stock":true},{"title":"6m x 4m","offer_id":55260884926812,"sku":"LDPE-035-6mX4m","price":136.24,"currency_code":"GBP","in_stock":true},{"title":"6m x 4.5m","offer_id":55260884959580,"sku":"LDPE-035-6mX45m","price":146.24,"currency_code":"GBP","in_stock":true},{"title":"6m x 5m","offer_id":55260884992348,"sku":"LDPE-035-6mX5m","price":167.49,"currency_code":"GBP","in_stock":true},{"title":"6m x 6m","offer_id":55260885025116,"sku":"LDPE-035-6mX6m","price":194.99,"currency_code":"GBP","in_stock":true},{"title":"7m x 3m","offer_id":55260885057884,"sku":"LDPE-035-7mX3m","price":117.49,"currency_code":"GBP","in_stock":true},{"title":"7m x 4m","offer_id":55260885090652,"sku":"LDPE-035-7mX4m","price":158.74,"currency_code":"GBP","in_stock":true},{"title":"7m x 5m","offer_id":55260885123420,"sku":"LDPE-035-7mX5m","price":198.74,"currency_code":"GBP","in_stock":true},{"title":"7m x 5.5m","offer_id":55260885156188,"sku":"LDPE-035-7mX55m","price":216.24,"currency_code":"GBP","in_stock":true},{"title":"7m x 6m","offer_id":55260885188956,"sku":"LDPE-035-7mX6m","price":228.74,"currency_code":"GBP","in_stock":true},{"title":"7m x 6.5m","offer_id":55260885221724,"sku":"LDPE-035-7mX65m","price":246.24,"currency_code":"GBP","in_stock":true},{"title":"7m x 7m","offer_id":55260885254492,"sku":"LDPE-035-7mX7m","price":293.74,"currency_code":"GBP","in_stock":true},{"title":"7.5m x 6m","offer_id":55260885287260,"sku":"LDPE-035-75mX6m","price":268.74,"currency_code":"GBP","in_stock":true},{"title":"7.5m x 7m","offer_id":55260885320028,"sku":"LDPE-035-75mX7m","price":328.74,"currency_code":"GBP","in_stock":true},{"title":"7.5m x 7.5m","offer_id":55260885352796,"sku":"LDPE-035-75mX75m","price":353.74,"currency_code":"GBP","in_stock":true},{"title":"8m x 3m","offer_id":55260885385564,"sku":"LDPE-035-8mX3m","price":158.74,"currency_code":"GBP","in_stock":true},{"title":"8m x 4m","offer_id":55260885418332,"sku":"LDPE-035-8mX4m","price":208.74,"currency_code":"GBP","in_stock":true},{"title":"8m x 5m","offer_id":55260885451100,"sku":"LDPE-035-8mX5m","price":253.74,"currency_code":"GBP","in_stock":true},{"title":"8m x 6m","offer_id":55260885483868,"sku":"LDPE-035-8mX6m","price":306.24,"currency_code":"GBP","in_stock":true},{"title":"8m x 7m","offer_id":55260885516636,"sku":"LDPE-035-8mX7m","price":358.74,"currency_code":"GBP","in_stock":true},{"title":"8m x 8m","offer_id":55260885549404,"sku":"LDPE-035-8mX8m","price":404.99,"currency_code":"GBP","in_stock":true},{"title":"9m x 5m","offer_id":55260885582172,"sku":"LDPE-035-9mX5m","price":282.49,"currency_code":"GBP","in_stock":true},{"title":"9m x 6m","offer_id":55260885614940,"sku":"LDPE-035-9mX6m","price":341.24,"currency_code":"GBP","in_stock":true},{"title":"9m x 7m","offer_id":55260885647708,"sku":"LDPE-035-9mX7m","price":428.74,"currency_code":"GBP","in_stock":true},{"title":"9m x 8m","offer_id":55260885680476,"sku":"LDPE-035-9mX8m","price":462.49,"currency_code":"GBP","in_stock":true},{"title":"9m x 9m","offer_id":55260885713244,"sku":"LDPE-035-9mX9m","price":506.24,"currency_code":"GBP","in_stock":true},{"title":"10m x 6m","offer_id":55260885746012,"sku":"LDPE-035-10mX6m","price":374.99,"currency_code":"GBP","in_stock":true},{"title":"10m x 7m","offer_id":55260885778780,"sku":"LDPE-035-10mX7m","price":444.99,"currency_code":"GBP","in_stock":true},{"title":"10m x 8m","offer_id":55260885811548,"sku":"LDPE-035-10mX8m","price":506.24,"currency_code":"GBP","in_stock":true},{"title":"10m x 9m","offer_id":55260885844316,"sku":"LDPE-035-10mX9m","price":568.74,"currency_code":"GBP","in_stock":true},{"title":"10m x 10m","offer_id":55260885877084,"sku":"LDPE-035-10mX10m","price":632.49,"currency_code":"GBP","in_stock":true},{"title":"11m x 7m","offer_id":55260885909852,"sku":"LDPE-035-11mX7m","price":632.49,"currency_code":"GBP","in_stock":true},{"title":"11m x 8m","offer_id":55260885942620,"sku":"LDPE-035-11mX8m","price":554.99,"currency_code":"GBP","in_stock":true},{"title":"11m x 9m","offer_id":55260885975388,"sku":"LDPE-035-11mX9m","price":623.74,"currency_code":"GBP","in_stock":true},{"title":"11m x 10m","offer_id":55260886008156,"sku":"LDPE-035-11mX10m","price":682.49,"currency_code":"GBP","in_stock":true},{"title":"12m x 7m","offer_id":55260886040924,"sku":"LDPE-035-12mX7m","price":531.24,"currency_code":"GBP","in_stock":true},{"title":"12m x 8m","offer_id":55260886073692,"sku":"LDPE-035-12mX8m","price":609.99,"currency_code":"GBP","in_stock":true},{"title":"12m x 9m","offer_id":55260886106460,"sku":"LDPE-035-12mX9m","price":682.49,"currency_code":"GBP","in_stock":true},{"title":"12m x 10m","offer_id":55260886139228,"sku":"LDPE-035-12mX10m","price":748.74,"currency_code":"GBP","in_stock":true},{"title":"12m x 12m","offer_id":55260886171996,"sku":"LDPE-035-12mX12m","price":906.24,"currency_code":"GBP","in_stock":true},{"title":"13m x 8m","offer_id":55260886204764,"sku":"LDPE-035-13mX8m","price":657.49,"currency_code":"GBP","in_stock":true},{"title":"13m x 9m","offer_id":55260886237532,"sku":"LDPE-035-13mX9m","price":734.99,"currency_code":"GBP","in_stock":true},{"title":"13m x 10m","offer_id":55260886270300,"sku":"LDPE-035-13mX10m","price":821.12,"currency_code":"GBP","in_stock":true},{"title":"13m x 12m","offer_id":55260886303068,"sku":"LDPE-035-13mX12m","price":971.24,"currency_code":"GBP","in_stock":true},{"title":"13m x 13m","offer_id":55260886335836,"sku":"LDPE-035-13mX13m","price":1054.99,"currency_code":"GBP","in_stock":true},{"title":"14m x 8m","offer_id":55260886368604,"sku":"LDPE-035-14mX8m","price":707.49,"currency_code":"GBP","in_stock":true},{"title":"14m x 9m","offer_id":55260886401372,"sku":"LDPE-035-14mX9m","price":787.49,"currency_code":"GBP","in_stock":true},{"title":"14m x 10m","offer_id":55260886434140,"sku":"LDPE-035-14mX10m","price":873.74,"currency_code":"GBP","in_stock":true},{"title":"14m x 12m","offer_id":55260886466908,"sku":"LDPE-035-14mX12m","price":1048.74,"currency_code":"GBP","in_stock":true},{"title":"14m x 14m","offer_id":55260886499676,"sku":"LDPE-035-14mX14m","price":1222.49,"currency_code":"GBP","in_stock":true},{"title":"15m x 8m","offer_id":55260886532444,"sku":"LDPE-035-15mX8m","price":748.74,"currency_code":"GBP","in_stock":true},{"title":"15m x 9m","offer_id":55260886565212,"sku":"LDPE-035-15mX9m","price":847.49,"currency_code":"GBP","in_stock":true},{"title":"15m x 10m","offer_id":55260886597980,"sku":"LDPE-035-15mX10m","price":934.99,"currency_code":"GBP","in_stock":true},{"title":"15m x 12m","offer_id":55260886630748,"sku":"LDPE-035-15mX12m","price":1123.74,"currency_code":"GBP","in_stock":true},{"title":"15m x 15m","offer_id":55260886663516,"sku":"LDPE-035-15mX15m","price":1277.49,"currency_code":"GBP","in_stock":true},{"title":"16m x 10m","offer_id":55260886696284,"sku":"LDPE-035-16mX10m","price":998.74,"currency_code":"GBP","in_stock":true},{"title":"16m x 12m","offer_id":55260886729052,"sku":"LDPE-035-16mX12m","price":1208.74,"currency_code":"GBP","in_stock":true},{"title":"18m x 10m","offer_id":55260886761820,"sku":"LDPE-035-18mX10m","price":1128.74,"currency_code":"GBP","in_stock":true},{"title":"18m x 12m","offer_id":55260886794588,"sku":"LDPE-035-18mX12m","price":1353.74,"currency_code":"GBP","in_stock":true},{"title":"18m x 15m","offer_id":55260886827356,"sku":"LDPE-035-18mX15m","price":1681.24,"currency_code":"GBP","in_stock":true},{"title":"20m x 15m","offer_id":55260886860124,"sku":"LDPE-035-20mX15m","price":1873.74,"currency_code":"GBP","in_stock":true},{"title":"20m x 18m","offer_id":55260886892892,"sku":"LDPE-035-20mX18m","price":2123.74,"currency_code":"GBP","in_stock":true},{"title":"24m x 15m","offer_id":55260886925660,"sku":"LDPE-035-24mX15m","price":2123.74,"currency_code":"GBP","in_stock":true},{"title":"24m x 18m","offer_id":55260886958428,"sku":"LDPE-035-24mX18m","price":2498.74,"currency_code":"GBP","in_stock":true},{"title":"26m x 18m","offer_id":55260886991196,"sku":"LDPE-035-26mX18m","price":2623.74,"currency_code":"GBP","in_stock":true},{"title":"26m x 20m","offer_id":55260887023964,"sku":"LDPE-035-26mX20m","price":2873.74,"currency_code":"GBP","in_stock":true},{"title":"28m x 18m","offer_id":55260887056732,"sku":"LDPE-035-28mX18m","price":2998.74,"currency_code":"GBP","in_stock":true},{"title":"28m x 20m","offer_id":55260887089500,"sku":"LDPE-035-28mX20m","price":3248.74,"currency_code":"GBP","in_stock":true},{"title":"30m x 16m","offer_id":55260887122268,"sku":"LDPE-035-30mX16m","price":2498.74,"currency_code":"GBP","in_stock":true},{"title":"30m x 18m","offer_id":55260887155036,"sku":"LDPE-035-30mX18m","price":3112.49,"currency_code":"GBP","in_stock":true},{"title":"30m x 20m","offer_id":55260887187804,"sku":"LDPE-035-30mX20m","price":3373.74,"currency_code":"GBP","in_stock":true},{"title":"32m x 20m","offer_id":55260887220572,"sku":"LDPE-035-32mX20m","price":3438.74,"currency_code":"GBP","in_stock":true},{"title":"32m x 22m","offer_id":55260887253340,"sku":"LDPE-035-32mX22m","price":4123.74,"currency_code":"GBP","in_stock":true},{"title":"34m x 18m","offer_id":55260887286108,"sku":"LDPE-035-34mX18m","price":3498.74,"currency_code":"GBP","in_stock":true},{"title":"34m x 20m","offer_id":55260887318876,"sku":"LDPE-035-34mX20m","price":4112.49,"currency_code":"GBP","in_stock":true},{"title":"34m x 22m","offer_id":55260887351644,"sku":"LDPE-035-34mX22m","price":4362.49,"currency_code":"GBP","in_stock":true},{"title":"36m x 24m","offer_id":55260887384412,"sku":"LDPE-035-36mX24m","price":4862.49,"currency_code":"GBP","in_stock":true},{"title":"38m x 26m","offer_id":55260887417180,"sku":"LDPE-035-38mX26m","price":5737.49,"currency_code":"GBP","in_stock":true},{"title":"40m x 30m","offer_id":55260887449948,"sku":"LDPE-035-40mX30m","price":6987.49,"currency_code":"GBP","in_stock":true},{"title":"40m x 40m","offer_id":55260887482716,"sku":"LDPE-035-40mX40m","price":9487.49,"currency_code":"GBP","in_stock":true},{"title":"50m x 40m","offer_id":55260887515484,"sku":"LDPE-035-50mX40m","price":11612.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2035\/9260\/files\/fa8f2024d2e5006e3a03e5674476d531.jpg?v=1779040011"},{"product_id":"budget-ldpe-pond-liner-uk-flexible-tear-proof-15-25-40-year-guarantee","title":"Budget LDPE Pond Liner UK | Flexible \u0026 Tear-Proof | 15, 25 \u0026 40 Year Guarantee","description":"\u003ch2\u003eBudget LDPE Pond Liner UK | Flexible \u0026amp; Tear-Proof | 15, 25 \u0026amp; 40 Year Guarantee — UK's Leading Pond Liner Specialist | Fish Safe | Free Delivery\u003c\/h2\u003e\n\u003cp\u003eDiscover our premium quality \u003cstrong\u003eBudget LDPE Pond Liner UK | Flexible \u0026amp; Tear-Proof | 15, 25 \u0026amp; 40 Year Guarantee\u003c\/strong\u003e — trusted by thousands of UK pond builders, garden designers, and koi enthusiasts. Every product in our range is selected for its reliability, fish-safe certification, and long-term performance in UK weather conditions.\u003c\/p\u003e\n\u003cp\u003eWe are one of the UK's leading specialist pond liner suppliers, with an extensive range covering all liner types, sizes, and applications — from small wildlife garden ponds to large commercial water features. Our expert team is on hand to help you choose the right product and size for your specific project.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFish Safe\u003c\/td\u003e\n\u003ctd\u003e✅ Yes — certified safe for all aquatic life\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Resistance\u003c\/td\u003e\n\u003ctd\u003eExcellent — UV stabilised\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eSuitable for all UK climate conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexibility\u003c\/td\u003e\n\u003ctd\u003eGood — suitable for various pond shapes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003eFree UK mainland delivery included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003e5 Key Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e🌿 \u003cstrong\u003eWildlife Garden Ponds\u003c\/strong\u003e — Creating habitats for frogs, newts, dragonflies, and garden birds\u003c\/li\u003e\n\u003cli\u003e🐟 \u003cstrong\u003eOrnamental Fish Ponds\u003c\/strong\u003e — Safe for goldfish, koi, and all freshwater pond species\u003c\/li\u003e\n\u003cli\u003e💧 \u003cstrong\u003eWater Features\u003c\/strong\u003e — Streams, waterfalls, and decorative water garden features\u003c\/li\u003e\n\u003cli\u003e🌸 \u003cstrong\u003eFormal Garden Ponds\u003c\/strong\u003e — Classic and contemporary formal water garden designs\u003c\/li\u003e\n\u003cli\u003e🌊 \u003cstrong\u003eBog Gardens\u003c\/strong\u003e — Shallow waterlogged planting areas for marginal and bog plants\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStep-by-Step Installation Overview\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan and excavate\u003c\/strong\u003e — Mark pond outline, excavate to required depth, remove all sharp debris\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall underlay\u003c\/strong\u003e — Lay 200gsm geotextile underlay across all surfaces before liner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition liner\u003c\/strong\u003e — Centre liner over pond, warm in sunlight for flexibility, drape into shape\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm and secure\u003c\/strong\u003e — Press into contours, create pleats at corners, work from centre outward\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFill and finish\u003c\/strong\u003e — Fill pond slowly with water, secure liner edges, add plants and fish\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003e✅ Trust \u0026amp; Guarantee\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Fish Safe Certified — Safe for all fish species and aquatic life\u003c\/li\u003e\n\u003cli\u003e✅ Free UK Delivery — All mainland UK orders delivered free\u003c\/li\u003e\n\u003cli\u003e✅ Long Guarantee — Manufacturer warranty on material integrity\u003c\/li\u003e\n\u003cli\u003e✅ Expert Advice Available — Speak to our pond specialists for free sizing advice\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I calculate what size I need?\u003c\/strong\u003e\u003cbr\u003eA: Add twice the maximum depth to both length and width of your pond, plus 0.6m on each dimension for edge overlap. When in doubt, always order the next size up — a larger liner is far better than a small one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need a specialist to install a pond liner?\u003c\/strong\u003e\u003cbr\u003eA: Most pond liners can be installed by a competent DIY enthusiast. The key steps are thorough ground preparation, installing underlay before the liner, and filling slowly to allow the liner to settle. Our team is available to advise on any stage of your installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this product safe for fish?\u003c\/strong\u003e\u003cbr\u003eA: All products in our range are fish-safe certified. We never stock pond liner materials that contain harmful plasticisers or leachable compounds.\u003c\/p\u003e","brand":"PondLiners Co","offers":[{"title":"2x2m \/ 15 Year","offer_id":57665403257180,"sku":null,"price":19.99,"currency_code":"GBP","in_stock":true},{"title":"2x2m \/ 25 Year","offer_id":57665403289948,"sku":null,"price":24.99,"currency_code":"GBP","in_stock":true},{"title":"2x2m \/ 40 Year","offer_id":57665403322716,"sku":null,"price":29.99,"currency_code":"GBP","in_stock":true},{"title":"3x3m \/ 15 Year","offer_id":57665403355484,"sku":null,"price":44.99,"currency_code":"GBP","in_stock":true},{"title":"3x3m \/ 25 Year","offer_id":57665403388252,"sku":null,"price":56.99,"currency_code":"GBP","in_stock":true},{"title":"3x3m \/ 40 Year","offer_id":57665403421020,"sku":null,"price":67.99,"currency_code":"GBP","in_stock":true},{"title":"4x3m \/ 15 Year","offer_id":57665403453788,"sku":null,"price":59.99,"currency_code":"GBP","in_stock":true},{"title":"4x3m \/ 25 Year","offer_id":57665403486556,"sku":null,"price":74.99,"currency_code":"GBP","in_stock":true},{"title":"4x3m \/ 40 Year","offer_id":57665403519324,"sku":null,"price":89.99,"currency_code":"GBP","in_stock":true},{"title":"4x4m \/ 15 Year","offer_id":57665403552092,"sku":null,"price":79.99,"currency_code":"GBP","in_stock":true},{"title":"4x4m \/ 25 Year","offer_id":57665403584860,"sku":null,"price":99.99,"currency_code":"GBP","in_stock":true},{"title":"4x4m \/ 40 Year","offer_id":57665403617628,"sku":null,"price":119.99,"currency_code":"GBP","in_stock":true},{"title":"5x4m \/ 15 Year","offer_id":57665403650396,"sku":null,"price":99.99,"currency_code":"GBP","in_stock":true},{"title":"5x4m \/ 25 Year","offer_id":57665403683164,"sku":null,"price":124.99,"currency_code":"GBP","in_stock":true},{"title":"5x4m \/ 40 Year","offer_id":57665403715932,"sku":null,"price":149.99,"currency_code":"GBP","in_stock":true},{"title":"5x5m \/ 15 Year","offer_id":57665403748700,"sku":null,"price":124.99,"currency_code":"GBP","in_stock":true},{"title":"5x5m \/ 25 Year","offer_id":57665403781468,"sku":null,"price":155.99,"currency_code":"GBP","in_stock":true},{"title":"5x5m \/ 40 Year","offer_id":57665403814236,"sku":null,"price":186.99,"currency_code":"GBP","in_stock":true},{"title":"6x4m \/ 15 Year","offer_id":57665403847004,"sku":null,"price":119.99,"currency_code":"GBP","in_stock":true},{"title":"6x4m \/ 25 Year","offer_id":57665403879772,"sku":null,"price":149.99,"currency_code":"GBP","in_stock":true},{"title":"6x4m \/ 40 Year","offer_id":57665403912540,"sku":null,"price":179.99,"currency_code":"GBP","in_stock":true},{"title":"6x5m \/ 15 Year","offer_id":57665403945308,"sku":null,"price":149.99,"currency_code":"GBP","in_stock":true},{"title":"6x5m \/ 25 Year","offer_id":57665403978076,"sku":null,"price":186.99,"currency_code":"GBP","in_stock":true},{"title":"6x5m \/ 40 Year","offer_id":57665404010844,"sku":null,"price":224.99,"currency_code":"GBP","in_stock":true},{"title":"6x6m \/ 15 Year","offer_id":57665404043612,"sku":null,"price":179.99,"currency_code":"GBP","in_stock":true},{"title":"6x6m \/ 25 Year","offer_id":57665404076380,"sku":null,"price":224.99,"currency_code":"GBP","in_stock":true},{"title":"6x6m \/ 40 Year","offer_id":57665404109148,"sku":null,"price":269.99,"currency_code":"GBP","in_stock":true},{"title":"7x5m \/ 15 Year","offer_id":57665404141916,"sku":null,"price":174.99,"currency_code":"GBP","in_stock":true},{"title":"7x5m \/ 25 Year","offer_id":57665404174684,"sku":null,"price":217.99,"currency_code":"GBP","in_stock":true},{"title":"7x5m \/ 40 Year","offer_id":57665404207452,"sku":null,"price":261.99,"currency_code":"GBP","in_stock":true},{"title":"7x6m \/ 15 Year","offer_id":57665404240220,"sku":null,"price":208.99,"currency_code":"GBP","in_stock":true},{"title":"7x6m \/ 25 Year","offer_id":57665404272988,"sku":null,"price":261.99,"currency_code":"GBP","in_stock":true},{"title":"7x6m \/ 40 Year","offer_id":57665404305756,"sku":null,"price":313.99,"currency_code":"GBP","in_stock":true},{"title":"8x6m \/ 15 Year","offer_id":57665404338524,"sku":null,"price":238.99,"currency_code":"GBP","in_stock":true},{"title":"8x6m \/ 25 Year","offer_id":57665404371292,"sku":null,"price":298.99,"currency_code":"GBP","in_stock":true},{"title":"8x6m \/ 40 Year","offer_id":57665404404060,"sku":null,"price":358.99,"currency_code":"GBP","in_stock":true},{"title":"10x8m \/ 15 Year","offer_id":57665404436828,"sku":null,"price":397.99,"currency_code":"GBP","in_stock":true},{"title":"10x8m \/ 25 Year","offer_id":57665404469596,"sku":null,"price":497.99,"currency_code":"GBP","in_stock":true},{"title":"10x8m \/ 40 Year","offer_id":57665404502364,"sku":null,"price":597.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2035\/9260\/files\/5205f711add9b71947bda6d0b61ef688.jpg?v=1779039503"},{"product_id":"wildlife-pond-starter-kit-uk-ldpe-liner-underlay-pond-sealer-all-in-one","title":"Wildlife Pond Starter Kit UK | LDPE Liner + Underlay + Pond Sealer | All-in-One","description":"\u003ch2\u003ePond Liner Underlay 200gsm UK — Heavy Duty Geotextile | Essential Protection | All Liner Types\u003c\/h2\u003e\n\u003cp\u003eThe single most important accessory for any pond liner installation — our \u003cstrong\u003e200gsm Heavy Duty Geotextile Pond Liner Underlay\u003c\/strong\u003e is the protective foundation that keeps your pond liner in perfect condition for decades. Professional pond builders consider underlay non-negotiable: a pond liner without underlay is a pond liner waiting to fail.\u003c\/p\u003e\n\u003cp\u003eOur geotextile underlay is a heavy-duty 200gsm needle-punched polypropylene fabric — the same professional specification used in commercial reservoir lining, landscape drainage, and civil engineering projects. It acts as a cushion between the ground and your pond liner, absorbing the shock of stones, roots, and ground movement that would otherwise puncture or stress your investment over time.\u003c\/p\u003e\n\u003ch3\u003eFull Technical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eNeedle-punched polypropylene geotextile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e200gsm (grams per square metre)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003eApproximately 2mm uncompressed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-30°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Resistance\u003c\/td\u003e\n\u003ctd\u003eGood (protected by liner once installed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFish Safe\u003c\/td\u003e\n\u003ctd\u003e✅ Yes — inert polypropylene, non-toxic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuarantee\u003c\/td\u003e\n\u003ctd\u003e20 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eAll pond liner types: EPDM, Butyl, PVC, HDPE, LDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Permeability\u003c\/td\u003e\n\u003ctd\u003eHigh — allows drainage, does not trap water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eGrey\/Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003e5 Reasons Underlay Is Essential\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e🛡️ \u003cstrong\u003eStone Puncture Protection\u003c\/strong\u003e — Even carefully prepared ground contains sharp stones that can work upward through soil movement. Underlay provides a tough buffer preventing these from reaching your liner\u003c\/li\u003e\n\u003cli\u003e🌱 \u003cstrong\u003eRoot Penetration Barrier\u003c\/strong\u003e — Aquatic plant roots can penetrate most liner materials over time. 200gsm geotextile significantly reduces this risk\u003c\/li\u003e\n\u003cli\u003e🌡️ \u003cstrong\u003eThermal Insulation\u003c\/strong\u003e — Provides a layer of insulation beneath the liner, helping maintain more stable water temperatures in winter\u003c\/li\u003e\n\u003cli\u003e⚡ \u003cstrong\u003eGround Movement Cushioning\u003c\/strong\u003e — Soils expand and contract with moisture changes and frost. Underlay absorbs this movement, preventing it from stressing the liner\u003c\/li\u003e\n\u003cli\u003e⏰ \u003cstrong\u003eExtended Liner Life\u003c\/strong\u003e — Pond liners installed with geotextile underlay last significantly longer than those without. The underlay investment pays for itself many times over\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStep-by-Step Installation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcavate and clean\u003c\/strong\u003e — Dig your pond and remove all large stones, roots, glass, and sharp debris. The cleaner the substrate, the better\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoll out the underlay\u003c\/strong\u003e — Starting from one end, roll the underlay fabric into the excavation and press flat against all surfaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverlap at edges\u003c\/strong\u003e — Allow 30–40cm of underlay to extend beyond the pond edge in all directions, protecting the liner at its most vulnerable point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverlap joins\u003c\/strong\u003e — If multiple pieces are needed, overlap by at least 300mm. No adhesive needed — the liner weight holds all pieces in position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall liner on top\u003c\/strong\u003e — Your chosen pond liner is installed directly on top of the underlay. The two layers work together to provide optimal protection\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eCompatible With All Pond Liner Types\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ EPDM Pond Liner — all thicknesses\u003c\/li\u003e\n\u003cli\u003e✅ Butyl Rubber Pond Liner — all grades\u003c\/li\u003e\n\u003cli\u003e✅ PVC Pond Liner — all thicknesses\u003c\/li\u003e\n\u003cli\u003e✅ HDPE Pond Liner — all grades\u003c\/li\u003e\n\u003cli\u003e✅ LDPE Pond Liner — all grades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e✅ Trust \u0026amp; Guarantee\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Fish Safe Certified — Inert polypropylene, safe for all aquatic life\u003c\/li\u003e\n\u003cli\u003e✅ Free UK Delivery — All mainland UK orders delivered free\u003c\/li\u003e\n\u003cli\u003e✅ 20 Year Guarantee — Long-term fabric warranty\u003c\/li\u003e\n\u003cli\u003e✅ Expert Advice Available — Our team can help calculate the exact quantity needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I really need underlay, or can I use sand instead?\u003c\/strong\u003e\u003cbr\u003eA: Sand is a good supplement but not a replacement for geotextile underlay. Sand can be washed away by water movement during pond filling, leaving voids that create pressure points. Use both sand (50mm base layer) AND geotextile underlay for the best protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How much underlay do I need?\u003c\/strong\u003e\u003cbr\u003eA: Order the same dimensions as your pond liner. Add 30–40cm on each dimension for edge overlap — or simply order the next size up if you're between sizes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can underlay be used for other applications?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Our 200gsm geotextile is widely used for weed suppression in garden borders, drainage separation layers in decking and paving projects, and erosion control on slopes.\u003c\/p\u003e","brand":"PondLiners Co","offers":[{"title":"3m x 3m","offer_id":57665556349276,"sku":null,"price":70.0,"currency_code":"GBP","in_stock":true},{"title":"4m x 3m","offer_id":57665556382044,"sku":null,"price":88.33,"currency_code":"GBP","in_stock":true},{"title":"5m x 4m","offer_id":57665556414812,"sku":null,"price":137.22,"currency_code":"GBP","in_stock":true},{"title":"6m x 5m","offer_id":57665556447580,"sku":null,"price":198.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2035\/9260\/files\/9f72e5a48ec0c393fedbf2abf3918539.jpg?v=1779040473"},{"product_id":"budget-pond-liner-kit-uk-ldpe-liner-underlay-best-value-complete-kit","title":"Budget Pond Liner Kit UK | LDPE Liner + Underlay | Best Value Complete Kit","description":"\u003ch2\u003ePond Liner Underlay 200gsm UK — Heavy Duty Geotextile | Essential Protection | All Liner Types\u003c\/h2\u003e\n\u003cp\u003eThe single most important accessory for any pond liner installation — our \u003cstrong\u003e200gsm Heavy Duty Geotextile Pond Liner Underlay\u003c\/strong\u003e is the protective foundation that keeps your pond liner in perfect condition for decades. Professional pond builders consider underlay non-negotiable: a pond liner without underlay is a pond liner waiting to fail.\u003c\/p\u003e\n\u003cp\u003eOur geotextile underlay is a heavy-duty 200gsm needle-punched polypropylene fabric — the same professional specification used in commercial reservoir lining, landscape drainage, and civil engineering projects. It acts as a cushion between the ground and your pond liner, absorbing the shock of stones, roots, and ground movement that would otherwise puncture or stress your investment over time.\u003c\/p\u003e\n\u003ch3\u003eFull Technical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eNeedle-punched polypropylene geotextile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e200gsm (grams per square metre)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003eApproximately 2mm uncompressed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-30°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Resistance\u003c\/td\u003e\n\u003ctd\u003eGood (protected by liner once installed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFish Safe\u003c\/td\u003e\n\u003ctd\u003e✅ Yes — inert polypropylene, non-toxic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuarantee\u003c\/td\u003e\n\u003ctd\u003e20 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eAll pond liner types: EPDM, Butyl, PVC, HDPE, LDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Permeability\u003c\/td\u003e\n\u003ctd\u003eHigh — allows drainage, does not trap water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eGrey\/Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003e5 Reasons Underlay Is Essential\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e🛡️ \u003cstrong\u003eStone Puncture Protection\u003c\/strong\u003e — Even carefully prepared ground contains sharp stones that can work upward through soil movement. Underlay provides a tough buffer preventing these from reaching your liner\u003c\/li\u003e\n\u003cli\u003e🌱 \u003cstrong\u003eRoot Penetration Barrier\u003c\/strong\u003e — Aquatic plant roots can penetrate most liner materials over time. 200gsm geotextile significantly reduces this risk\u003c\/li\u003e\n\u003cli\u003e🌡️ \u003cstrong\u003eThermal Insulation\u003c\/strong\u003e — Provides a layer of insulation beneath the liner, helping maintain more stable water temperatures in winter\u003c\/li\u003e\n\u003cli\u003e⚡ \u003cstrong\u003eGround Movement Cushioning\u003c\/strong\u003e — Soils expand and contract with moisture changes and frost. Underlay absorbs this movement, preventing it from stressing the liner\u003c\/li\u003e\n\u003cli\u003e⏰ \u003cstrong\u003eExtended Liner Life\u003c\/strong\u003e — Pond liners installed with geotextile underlay last significantly longer than those without. The underlay investment pays for itself many times over\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStep-by-Step Installation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcavate and clean\u003c\/strong\u003e — Dig your pond and remove all large stones, roots, glass, and sharp debris. The cleaner the substrate, the better\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoll out the underlay\u003c\/strong\u003e — Starting from one end, roll the underlay fabric into the excavation and press flat against all surfaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverlap at edges\u003c\/strong\u003e — Allow 30–40cm of underlay to extend beyond the pond edge in all directions, protecting the liner at its most vulnerable point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverlap joins\u003c\/strong\u003e — If multiple pieces are needed, overlap by at least 300mm. No adhesive needed — the liner weight holds all pieces in position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall liner on top\u003c\/strong\u003e — Your chosen pond liner is installed directly on top of the underlay. The two layers work together to provide optimal protection\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eCompatible With All Pond Liner Types\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ EPDM Pond Liner — all thicknesses\u003c\/li\u003e\n\u003cli\u003e✅ Butyl Rubber Pond Liner — all grades\u003c\/li\u003e\n\u003cli\u003e✅ PVC Pond Liner — all thicknesses\u003c\/li\u003e\n\u003cli\u003e✅ HDPE Pond Liner — all grades\u003c\/li\u003e\n\u003cli\u003e✅ LDPE Pond Liner — all grades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e✅ Trust \u0026amp; Guarantee\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Fish Safe Certified — Inert polypropylene, safe for all aquatic life\u003c\/li\u003e\n\u003cli\u003e✅ Free UK Delivery — All mainland UK orders delivered free\u003c\/li\u003e\n\u003cli\u003e✅ 20 Year Guarantee — Long-term fabric warranty\u003c\/li\u003e\n\u003cli\u003e✅ Expert Advice Available — Our team can help calculate the exact quantity needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I really need underlay, or can I use sand instead?\u003c\/strong\u003e\u003cbr\u003eA: Sand is a good supplement but not a replacement for geotextile underlay. Sand can be washed away by water movement during pond filling, leaving voids that create pressure points. Use both sand (50mm base layer) AND geotextile underlay for the best protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How much underlay do I need?\u003c\/strong\u003e\u003cbr\u003eA: Order the same dimensions as your pond liner. Add 30–40cm on each dimension for edge overlap — or simply order the next size up if you're between sizes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can underlay be used for other applications?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Our 200gsm geotextile is widely used for weed suppression in garden borders, drainage separation layers in decking and paving projects, and erosion control on slopes.\u003c\/p\u003e","brand":"PondLiners Co","offers":[{"title":"3x3m","offer_id":57665829568860,"sku":null,"price":46.9,"currency_code":"GBP","in_stock":true},{"title":"4x3m","offer_id":57665829601628,"sku":null,"price":62.53,"currency_code":"GBP","in_stock":true},{"title":"5x4m","offer_id":57665829634396,"sku":null,"price":104.22,"currency_code":"GBP","in_stock":true},{"title":"6x5m","offer_id":57665829667164,"sku":null,"price":156.33,"currency_code":"GBP","in_stock":true},{"title":"6x6m","offer_id":57665829699932,"sku":null,"price":187.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2035\/9260\/files\/fb57e55f3a874139ca547731d6be61e4.jpg?v=1779039518"},{"product_id":"flexible-ldpe-pond-liner-uk-0-3mm-uv-resistant-koi-wildlife-ponds","title":"Flexible LDPE Pond Liner UK | 0.3mm | UV Resistant | Koi \u0026 Wildlife Ponds","description":"\u003cdiv class=\"product-description\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eFlexible LDPE Pond Liner\u003c\/strong\u003e is the go-to choice for UK pond builders who need an easy-to-handle, budget-friendly liner that doesn't compromise on performance. Made from 0.3mm low-density polyethylene, this liner is naturally \u003cstrong\u003emore flexible and lightweight\u003c\/strong\u003e than HDPE alternatives, making it ideal for hobbyists and those installing their first pond. It comes \u003cstrong\u003efish safe certified\u003c\/strong\u003e, UV resistant, and backed by a \u003cstrong\u003e25-year guarantee\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're creating a small wildlife pond in a city garden or a larger ornamental koi pond, this LDPE liner adapts effortlessly to your design. The flexible material drapes easily around curves, shelves, and irregular pond shapes, reducing the risk of creases and folds during installation.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%; border-collapse:collapse; font-size:14px;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eLDPE (Low-Density Polyethylene)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e0.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eUV Resistance\u003c\/td\u003e\n\u003ctd\u003eYes — UV stabilised\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eGuarantee\u003c\/td\u003e\n\u003ctd\u003e25 years against UV damage\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFish Safe\u003c\/td\u003e\n\u003ctd\u003eYes — aquatically non-toxic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFlexibility\u003c\/td\u003e\n\u003ctd\u003eHigh — drapes easily into pond contours\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCut-to-size\u003c\/td\u003e\n\u003ctd\u003eEasy to trim with scissors or knife\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSuitable For\u003c\/td\u003e\n\u003ctd\u003eKoi ponds, wildlife ponds, ornamental water features\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e0.3mm LDPE\u003c\/strong\u003e — highly flexible, easy to position and install\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e25-Year UV Guarantee\u003c\/strong\u003e — resists sun damage in all British weather\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eFish \u0026amp; Wildlife Safe\u003c\/strong\u003e — certified non-toxic formulation\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eEasy to Cut\u003c\/strong\u003e — trims cleanly with standard scissors or a utility knife\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eMultiple Sizes\u003c\/strong\u003e — from small 2x2m up to large 6x5m sheets\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eLightweight\u003c\/strong\u003e — easier to transport and handle than heavier rubber liners\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eFree UK Delivery\u003c\/strong\u003e — fast dispatch to your door\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWildlife Ponds\u003c\/strong\u003e — safe for frogs, newts, toads, hedgehogs, and birds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKoi \u0026amp; Goldfish Ponds\u003c\/strong\u003e — non-toxic surface safe for ornamental fish\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBeginner Pond Builds\u003c\/strong\u003e — easy to work with, forgiving during installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInformal Garden Ponds\u003c\/strong\u003e — adapts to any organic, free-form shape\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBog Gardens\u003c\/strong\u003e — retains moisture for marginal pond plants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePond Repairs\u003c\/strong\u003e — can be used as patching material over existing liners\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eLDPE vs HDPE — Which Should I Choose?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eLDPE (this liner)\u003c\/strong\u003e is more flexible and easier to handle, making it excellent for complex shapes and first-time builders. It's slightly thinner than HDPE at 0.3mm but still durable enough for long-term use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHDPE\u003c\/strong\u003e is denser and more puncture-resistant, better suited to larger ponds or areas with aggressive root systems. Both materials are fish safe and UV resistant.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasure:\u003c\/strong\u003e Length + (2 × max depth) + 0.6m × Width + (2 × max depth) + 0.6m\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrepare:\u003c\/strong\u003e Remove sharp stones and roots. Sand base recommended. Protective underlay advised.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarm the liner:\u003c\/strong\u003e On a sunny day, LDPE becomes even more pliable — ideal for installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrape and fold:\u003c\/strong\u003e Work from the centre out, neatly folding liner into corners and shelves.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFill slowly:\u003c\/strong\u003e Add water gradually — the weight helps settle the liner into position.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecure edges:\u003c\/strong\u003e Trim with 200–300mm overlap and secure under coping stones or soil.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eWith Over 1,400 Five-Star Reviews\u003c\/h2\u003e\n\u003cp\u003eThis LDPE liner is one of the UK's most popular pond membranes — trusted by hobbyist pond builders, garden landscapers, and wildlife garden enthusiasts across Britain. The combination of easy handling, UV stability, fish-safe formulation, and long guarantee makes it exceptional value for money.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e🐟 Fish Safe\u003c\/strong\u003e | \u003cstrong\u003e☀️ UV Resistant\u003c\/strong\u003e | \u003cstrong\u003e📅 25 Year Guarantee\u003c\/strong\u003e | \u003cstrong\u003e✂️ Easy to Cut\u003c\/strong\u003e | \u003cstrong\u003e🚚 Free UK Delivery\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Pond Liners Co","offers":[{"title":"2m x 2m","offer_id":57666515239260,"sku":null,"price":19.33,"currency_code":"GBP","in_stock":true},{"title":"3m x 3m","offer_id":57666515272028,"sku":null,"price":43.48,"currency_code":"GBP","in_stock":true},{"title":"4m x 3m","offer_id":57666515304796,"sku":null,"price":57.98,"currency_code":"GBP","in_stock":true},{"title":"4m x 4m","offer_id":57666515337564,"sku":null,"price":77.31,"currency_code":"GBP","in_stock":true},{"title":"6m x 5m","offer_id":57666515370332,"sku":null,"price":144.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0889\/2035\/9260\/files\/63bf30658288b7abc1d5dc5429c783e4.jpg?v=1779039725"}],"url":"https:\/\/www.pondlinersco.co.uk\/collections\/ldpe-pond-liners.oembed","provider":"PondLinersco.co.uk","version":"1.0","type":"link"}