About PondLinersco — UK's Premier Pond Liner Specialists

About PondLinersco — The UK's Pond Liner Specialists

Founded by pond enthusiasts. Driven by specification. Trusted by 10,000+ UK pond owners.

PondLinersco.co.uk is the United Kingdom's leading specialist supplier of pond liners, supplying homeowners, koi keepers, professional landscapers, wildlife organisations and commercial contractors with the highest-specification HDPE, LDPE, EPDM, Butyl Rubber, Rubber and PVC pond liners available in the UK market. We are based in Burnley, Lancashire and dispatch every order from the UK with free delivery to mainland Britain.

Our Story — Why PondLinersco Exists

PondLinersco was born out of frustration — the kind that only comes from genuinely loving something and watching it done badly.

Our founders were pond enthusiasts first, business people second. Between them, they had spent years building, maintaining, and perfecting garden ponds across the UK. And they kept running into the same problem: the pond liners available on the UK market were, bluntly, not good enough.

The industry standard for flexible EPDM pond liner — the most popular and widely recommended material — had settled at 0.75mm thickness. The real-world consequences are significant. A 0.75mm EPDM liner exposed to a decade of UK freeze-thaw cycles, UV radiation, water pressure, and the occasional sharp stone begins to show its limitations. Microcracks develop. Flexibility decreases. And eventually, far sooner than the marketing promised, you are looking at a partial or total pond rebuild.

So in 2009, we set out to do things differently. We sourced 1.02mm EPDM — the specification used by professional pond builders and commercial installers. We obtained EPDM-45 fish safety certification, because anyone keeping koi or ornamental fish deserves to know their liner will not leach harmful compounds into the water. And we built a business around the principle that the best pond liner is the one you never have to replace.

The 1.02mm Difference — Why Specification Matters

Numbers matter in pond building. Here is why 1.02mm versus 0.75mm EPDM is not a trivial distinction:

36% more material — a step change in durability, not a marginal improvement
Superior puncture resistance — handles sharp stones, root penetration and physical impact far better
Better cold flexibility — critical in UK winters; thicker EPDM maintains flexibility at low temperatures without cracking
Longer UV stability — more material means longer structural integrity under UV degradation
Professional specification — 1.02mm is what commercial pond builders, wildlife trusts, and koi specialists specify, not what budget retailers sell

Our EPDM-45 certification confirms the material is safe for fish at all life stages — a standard that many budget liners cannot meet.

Our Full Pond Liner Range

We supply every major pond liner material used in the UK, because different ponds genuinely need different solutions:

EPDM Pond Liner — Our Flagship Product

At 1.02mm and EPDM-45 certified, our EPDM liner is the specification we are most proud of. Backed by a 25-year guarantee, suitable for every pond type from wildlife ponds to professional koi installations. EPDM-45 fish safe certification means it is safe for koi, goldfish, amphibians and all aquatic life. This is the liner our in-house aquatic specialist James Whitfield installed throughout his 15-year professional career.

Butyl Rubber Pond Liner

The original premium pond liner material. Butyl's natural elasticity and cold-weather performance make it a favourite among experienced pond keepers, particularly for irregular-shaped ponds where maximum stretch is required. Our 0.75mm butyl liner carries a 20-year guarantee and is fish safe certified.

HDPE Pond Liner

High-Density Polyethylene for larger, more formal installations. Our HDPE range includes standard 25-year and industrial heavy-duty 40-year guaranteed options. UV-resistant and dimensionally stable — the material of choice for large commercial water features, natural swimming pools, irrigation reservoirs and commercial lakes.

LDPE Pond Liner

Our flexible LDPE liner at 0.35mm offers excellent value for straightforward garden pond applications. Tear-resistant and easy to install, backed by a 25-year guarantee. Ideal for ornamental ponds, raised beds and water features.

PVC Pond Liner

Available in 0.3mm (15-year guarantee) and 0.5mm heavy-duty (30-year guarantee with free underlay). PVC liners offer good chemical resistance and are ideal for ornamental features and decorative garden ponds where cost-efficiency is a priority.

Rubber Pond Liner

Highly durable and UV-resistant, our rubber pond liners are suitable for all UK climates and a range of pond applications. Available in multiple sizes with competitive pricing and strong long-term performance characteristics.

Pond Liner Underlay

200gsm heavy-duty geotextile underlay, sold separately or included free with selected liner ranges. Protects your liner from below-ground puncture risks — stones, roots and compacted soil edges. An essential component for any professional installation.

Our Guarantee Structure

Our guarantee structure is one of the strongest in the UK pond liner market. These are real, written guarantees — not marketing language:

Liner Material	Specification	Guarantee
EPDM Pond Liner	1.02mm, EPDM-45 Fish Safe	25 Years
Butyl Rubber Pond Liner	0.75mm, Fish Safe	20 Years
HDPE Pond Liner (Standard)	Heavy Duty	25 Years
HDPE Pond Liner (Industrial)	Heavy Duty 40yr + Polyex	40 Years
PVC Pond Liner (Heavy Duty)	0.5mm with Free Underlay	30 Years
LDPE Pond Liner	0.35mm	25 Years

Free UK Delivery — No Minimum Spend, No Exceptions

Every order ships free to anywhere in mainland UK. We do not believe in hiding costs in the delivery charge. The price you see is the price you pay. Custom-cut liners are precision cut to your exact dimensions with no off-cuts and no waste — and they ship free too.

Expert Advice — James Whitfield, Aquatic Specialist

James Whitfield is our in-house aquatic specialist. With 15 years of professional pond construction experience and over 400 ponds installed across the UK, James reviews technical questions from customers personally, contributes our expert guides, and ensures the advice we publish is grounded in real-world professional experience — not marketing copy.

James holds City & Guilds qualifications in horticulture and has worked on projects ranging from small garden koi ponds to large commercial water features for hotels, public parks and wildlife conservation sites. When you call or email PondLinersco, it is James or one of his team who answers — not a call centre.

If you are unsure which liner is right for your project, contact us with your pond dimensions and James will give you a straight, honest recommendation.

Who We Serve

PondLinersco supplies pond liners to a wide range of customers across the United Kingdom:

Home garden enthusiasts building their first wildlife or ornamental garden pond
Koi keepers who understand that fish health begins with liner quality and material certification
Professional landscapers who need reliable supply, consistent specification and fast delivery
Wildlife gardeners creating habitat for frogs, newts, dragonflies, insects and birds
Conservation projects — wildlife trusts, nature reserves, Schools and educational sites
Commercial clients — hotels, corporate grounds, public parks, golf courses and water features
Agricultural users — irrigation reservoirs, livestock water storage and run-off management
Swimming pond designers — natural swimming pools and recreational water features

Our Values

Specification Integrity

We will never source a thinner or cheaper liner to improve margins. The 1.02mm EPDM standard is non-negotiable because our reputation depends on products that perform for decades, not years. When we specify a material, we stand behind it completely.

Honest, Expert Advice

Our expert content — written by James Whitfield from genuine professional experience — is designed to help you make the right decision for your specific situation, even if that means recommending a less expensive option. We would rather lose a sale than recommend the wrong product for your pond.

Customer Outcomes as Our Measure of Success

We measure our success by ponds that last, fish that thrive, and customers who never have to call us about a liner failure. That is the standard we hold ourselves to, and it is why we back our products with the strongest guarantees in the UK market.

Frequently Asked Questions About PondLinersco

Where is PondLinersco based?

PondLinersco is based at Unit 1B, Summit Works, Manchester Road, Burnley, Lancashire, BB11 5HG, United Kingdom. All orders are processed and dispatched from our Burnley facility.

When was PondLinersco founded?

PondLinersco was founded in 2009 by pond enthusiasts who were frustrated with the low quality of pond liners available in the UK market, particularly the industry standard 0.75mm EPDM. With over 15 years in the industry, we are one of the UK's most established pond liner specialists.

What makes PondLinersco different from other UK pond liner suppliers?

Three things set us apart: (1) We supply 1.02mm EPDM — the professional specification — rather than the consumer-grade 0.75mm standard. (2) Our EPDM is EPDM-45 fish safe certified. (3) All technical advice comes from James Whitfield, a qualified aquatic specialist with 15 years' professional experience — not a general customer service team.

Do you supply pond liners for commercial projects?

Yes. We supply commercial quantities of HDPE (including 40-year industrial grade), EPDM and PVC pond liners for commercial water features, irrigation reservoirs, natural swimming pools, hotel and public park ponds, and conservation projects. Contact us directly for commercial pricing and project support.

Are your liners fish safe?

Our EPDM 1.02mm liner is EPDM-45 certified fish safe. Our butyl rubber liners are also fish safe certified. Both are suitable for koi ponds, goldfish ponds and any pond containing aquatic life. HDPE and LDPE grades are also suitable for fish-bearing ponds. If in doubt, contact James Whitfield for specific guidance on your pond type.

What is the longest guarantee you offer?

Our longest guarantee is 40 years, available on our HDPE Heavy Duty (40yr + Polyex) pond liner range. Our EPDM, LDPE and standard HDPE carry 25-year guarantees. All guarantees are backed in writing at the time of purchase.