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Pond Liners:

Average Rating

Feefo Star Rating(4.9/5)
376 customer reviews

Pond liners you can trust - guaranteed! We specialise in pond liner and pond liner underlay - see reviews here!
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Choose from

Flexiliner Pond LinersFlexiliner Pond Liners
Bestselling 3-ply pond liners available in 36 different sizes guaranteed for up to 40 yrs.
Half Price Underlay Offer on 40yr Liners
Rubber Pond LinersRubber Pond Liners
Butyl Rubber and Greenseal EPDM pond liners. Please allow 3-7 working days for delivery.
Blagdon Ultimate Lining SystemBlagdon Ultimate Lining System
PVC Pond Liner and Underlay Sale. Lifetime Guarantee. Extra Special Offer - 80% Off RRP.
PVC Pond LinersPVC Pond Liners
Heavyweight pond liners made out of PVC. Black, 0.5mm thick, guaranteed up to 30 yrs.
Firestone Pond LinersFirestone Pond Liners
1.02mm these are our thickest pond liners. Please allow 3-7 working days delivery.
Pond Liner UnderlayPond Liner Underlay
Essential to protect your pond liner. Our pond liners can only be guaranteed when underlaid.
Stone Faced Pond LinerStone Faced Pond Liner
Lay on top of existing pond liner to create a natural edge - perfect 'beach' for wildlife
Preformed Pond LinersPreformed Pond Liners
Rigid pond liners (also called preformed ponds) manufactured out of hard plastic or fibreglass.
Pond Liner AccessoriesPond Liner Accessories
Pond liner repair kits and joining tape
Concrete Pond AccessoriesConcrete Pond Accessories
Concrete pond sealer, reinforcement Fibres and putty

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pond building guide

Find everything you wanted to know about pond building but were afraid to ask in the pond building guide.



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Lowest Price Pondliners Guaranteed

We constantly check competitor prices and confidently believe that our pondliners offer you the best deal in the UK. However, in the unlikely event that you find pond liners available (of similar high quality) at a cheaper price elsewhere in the UK then please let us know. If your claim can be authenticated we will beat that price. (This offer excludes Ebay and other auction-site prices). Contact us at

Pond Liner Calculator

calculatorUse our pond calculator. This handy tool automatically calculates the size of liner you will need from your pond measurements.

Pond Liner FAQs

What are your pond liners made from?

Flexiliner Pond Liner Material and Construction
Flexiliner pond liners are manufactured out of LDPE (Low Density Polyethylene). An ultra-tight weave of tough fibres is sandwiched between two layers of rot/UV resistant laminated coating. This means that the pond liners are tough and strong, yet still supple and flexible enough to easily move into position when pond building.

Are your Pond Liners as good as other types?

Flexiliner (LDPE) Pond Liners vs Butyl or PVC Pond Liners
There are a lot of pond liner materials on the market and we have tried them all. But listening to landscapers we know that one real advantage of our Flexiliner is that they are reinforced. The more uniform material of the other pond liners means that a tiny puncture or tear can run when the weight of water is introduced to the pond. This does not happen with our liners as the inner weave acts as a reinforcement grid within the pond liner. Try cutting a sample with a pair of scissors and then try to tear it apart with your hands and you will see what we mean! You can be reassured by the fact that our pond liners are now employed successfully in thousands of pond installations across the world. Each one backed by us with a long-life guarantee.

How can you offer such low pond liner prices?

Remarkably Low Price Pond Liners
The clever construction method we employ means that a pond liner made out of a less expensive base material can last for just as long as other, more expensive pond liners. Plus, due to our success we can manufacture vast bulk quantities of these pond liners and this too helps to keep production costs low. We pride ourselves in offering the lowest liner price in the UK and fight to keep this position. Despite a raw material increase this year we have not raised our prices and will continue to offer the best price possible.

Why do I need a pond liner/ What choices are there?

Pond Lining – The traditional approach
People have been creating water gardens for hundreds of years. Vast water expanses and lakes were created for the great country estates in 18th Century Britain by the likes of famous landscape gardeners such as Capability Brown. Then, as now, thought had to be given to the question of lining the pond so that the water couldn’t escape. Traditionally water was retained by puddling pools in clay before they were filled. This method is rarely used today as it’s a messy and time-consuming task and clay ponds can be subject to cracking during drought.

The modern water gardener has much more choice:

  • Flexible pond liners
    If you’re after more than 4 square metres of surface water and a choice of depth then flexible pond liners are the answer. The types available are typically Butyl pond liners, PVC pond liners and LDPE Pond Liners. All modern flexible pond liners will give good long lasting results. The LDPE pond liners manufactured for have the benefit of being reinforced – this means that any tiny punctures created by rogue thorns/stones will not stretch and rip through the pond liners when the weight of water is introduced.
  • Concrete pond lining
    There is the possibility of manufacturing the pond liner out of concrete and this method does create a very good long-lasting barrier. However, there is a lot of on-site mess and disruption and it is an expensive option.
  • Rigid pond liners
    Rigid pre-formed pools made out of plastic (typically HDPE) can be used as pond lining for smaller projects. However as they are molded into a pre-selected shape and size they are only worth considering if they match the dimensions of the project that you have in mind..
FeeFo Feedback

Pond Keeper - Pond Liners reviews

Feedback for Pond Keeper - Pond Liners has been compiled from 376 customer reviews

Date Product Score Customer Comment

Basic Underlay 18x10

  • Customer also bought: .... :
  • 15yr pondliner 18x10
  • PondXpert SolarShower 200 with Battery & LED


15yr pondliner 18x10

  • Customer also bought: .... :
  • Basic Underlay 18x10
  • PondXpert SolarShower 200 with Battery & LED


Basic Underlay 3x3

  • Customer also bought: .... :
  • 3x3 Butyl Pondliner

Fast delivery, quality product.

3x3 Butyl Pondliner

  • Customer also bought: .... :
  • Basic Underlay 3x3


PondXpert Stone Liner 1.2m x 1m Classic Stone

  • Customer also bought: .... :
  • Growth Pellets 1kg

Improves the look of the sides of the pond

40yr pondliner 7x5

  • Customer also bought: .... :
  • Pond Fleece Underlay 7x5
  • Hozelock Aquaforce 2500 - Free Hose & Clips

Delivered next day as promised and our garden pond is now up and running with happy fish!

Pond Fleece Underlay 7x5

  • Customer also bought: .... :
  • 40yr pondliner 7x5
  • Hozelock Aquaforce 2500 - Free Hose & Clips

As Above

15yr pondliner 8x8


used before and last far longer than guarantee

Pond Liner Fixing Tape (Cold Glue) 1m Length


Product as described.

PondXpert Stone Faced Pond Liner Terrazzo 0.6 X 1m

  • Customer also bought: .... :
  • Flexiliner 6x6m 15yr - Free Underlay

Well made

25yr pondliner 8x6


Difficult to rate as only been in the pond for a few weeks! It was, however, easy to manage and fit.

30yr PVC Pond Liner + Half Price Fleece: 3 x 2


Delivered the next day - amazing!

25yr pondliner 7x7


first impressions were a bit sceptical, but got it in and filled with water and its fine. it has only been a couple of months but I've been in with the fish and me walking on it with shoes on and is fine.
i'll let you know how things are in 20 years.

Blagdon PVC 4m X 3.5m Pond Liner ONLY

  • Customer also bought: .... :
  • Ubbink Large Square Planting Basket 29x20cm
  • Velda Aquatic Soil 10 Litres & Aquatic Gravel 8 Litres
  • PondXpert Pond Basket Liners 5 Pack

I received a damaged consignment of which I contacted the company via email including photos. As yet I have not received a response. I doubt I would use them again and certainly would not recommend them to any of my friends and family.

On 23-Oct-2015 the supplier responded:

Thank you for taking the time to leave us your feedback.

I apologise that your email dated 01/10/2015 was not replied to in a timely manner. I will be investigating this to understand what happened here because we try to respond to all emails within a 24 hour time period.

I have looked at your photos and I am disappointed that the box has arrived in this condition. I will pass your photos on to my contact at UKMAIL in attempt to ensure this does not happen again.

Please expect delivery of your replacement basket on Monday.

Sorry for any inconvenience caused in respect of this issue.

Warm Regards,

Blagdon PVC 3.5m X 3m Pond Liner ONLY


easy to use

Pond Fleece Underlay 7x6

  • Customer also bought: .... :
  • 7x6 Butyl Pondliner

superb service, goods as expected, personal contact with office very good, instructions completed with speed accuracy and efficiently. Thanks

7x6 Butyl Pondliner

  • Customer also bought: .... :
  • Pond Fleece Underlay 7x6

As Above

Pond Fleece Underlay 4x3

  • Customer also bought: .... :
  • 40yr pondliner 4x3

Easy to use - and far more than the length requested!

40yr pondliner 4x3

  • Customer also bought: .... :
  • Pond Fleece Underlay 4x3

good instructions and easy to install BUT not clear which is the top side.

Pond Fleece Underlay 4x3

  • Customer also bought: .... :
  • 25yr pondliner 4x4

VERY tough, it actually stopped a drill (yes, I tried). Nothing is getting through that. It probably could protect your pond from a bomb. But with sharp scizzors, cutting it to shape was possible.

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Pondkeeper are UK suppliers of pond liners, underlay, pond pumps, filters and other pond equipment and water garden accessories.
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