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Pond Liners:

Average Rating

Feefo Star Rating(4.9/5)
103 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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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 103 customer reviews

Date Product Score Customer Comment

Pond Fleece Underlay 9 x 5

  • Customer also bought: .... :
  • 40yr pondliner 9x5

A bit thinner than I was expecting, but does the job.

40yr pondliner 9x5

  • Customer also bought: .... :
  • Pond Fleece Underlay 9 x 5

Easy to use, and good value. seems tough, too. Liked the choice of colour (brown one side, black the other), and opted for brown, which looks great in the setting

Basic Underlay 3x3 (1 at half price)

  • Customer also bought: .... :
  • 40yr pondliner 3x3

appears to be good value for the money

40yr pondliner 3x3

  • Customer also bought: .... :
  • Basic Underlay 3x3 (1 at half price)


25yr pondliner 3x3


Seems good quality but only just using it.

40yr pondliner 6x4


seems great - ask me in a few years

Medium Butyl Pond Liner Repair Kit - 50x50cm Butyl Liner & 3m Cold Glue


excellent service and product but could have had instructions for use with it

Pond Fleece Underlay 9x6

  • Customer also bought: .... :
  • 40yr pondliner 9x6

service excellent delivered as promised with no problems pond looks great

40yr pondliner 9x6

  • Customer also bought: .... :
  • Pond Fleece Underlay 9x6

As Above

15yr pondliner 5x4


Delivered fairly promptly - am waiting to test the products - good prices.

15yr pondliner 7x6

  • Customer also bought: .... :
  • Atlantis Double Step Pond Waterfall
  • Basic Underlay 7x6

Seemed a lot bigger than I ordered, excellent quality and very tough durable no complaints.

Basic Underlay 7x6

  • Customer also bought: .... :
  • 15yr pondliner 7x6
  • Atlantis Double Step Pond Waterfall

No complaints ..exactly as it was described and all that was necessary more than pleased

15yr pondliner 5x5


Good quality, strong material, should last for a long time

Basic Underlay 3 x 5


Wrong size product sent. Also sent a week earlier than i wanted. Poor comunication throughout.

On 20-Jul-2015 the supplier responded:

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

I am really sorry we missed your additional delivery instructions to "deliver after 20th July if possible or push under wooden side gate", this has highlighted an issue with our system and will not happen again. We supply all our underlay in 2m x 5m pieces and 2m x 8m pieces to make up the size ordered, I am sorry again if this was not communicated effectively enough on the website at the time you ordered. I have refunded all monies due and sincerely hope this experience does not deter you from ordering again in the future.

Sorry for any inconvenience caused in respect of this issue.


Customer Care Team
(01642) 370888

Blagdon PVC 3.5m X 3m Pond Liner ONLY


Does what it says on the tin - it's a pond liner

5x5 Greenseal Pondliner

  • Customer also bought: .... :
  • Laguna Floating Pond Planters - 35 & 25cm Set
  • Velda Pond Planting Bags Large 30x30cm - 3 Pack
  • Velda Pond Planting Bags Medium 25x25cm - 3 Pack

Light and strong and easy to manage

Blagdon PVC 3.5m X 3m Pond Liner ONLY

  • Customer also bought: .... :
  • Hozelock Autoreel 30m - Auto Rewind Garden Hose

Very good price will be used for a green roof liner.

15yr pondliner 5x4


As described if not better and value for money

Basic Underlay 5x5

  • Customer also bought: .... :
  • 5x5 Butyl Pondliner

Feels a bit thin

5x5 Butyl Pondliner

  • Customer also bought: .... :
  • Basic Underlay 5x5

Very good

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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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