Best Liner Underlays Deals Online in the UK (10 Deals Found)

Last Updated - 24/03/2026 Sort By:

Best Choice
MYPURECORE YOU AT THE CORE

New
MYPURECORE 50gsm Pond Liner Underlay 3m x 3m - Tear-Resistant, Durable Garden Pool Foundation - Perfect for Wildlife and
UNMATCHED DURABILITY: Crafted with 50gsm material, our pond underlay offers unparalleled durability and resistance to te

£10.40
Best Value
MYPURECORE YOU AT THE CORE

New
MYPURECORE 50gsm Pond Liner Underlay 3m x 5m - Tear-Resistant, Durable Garden Pool Foundation - Perfect for Wildlife and
UNMATCHED DURABILITY: Crafted with 50gsm material, our pond underlay offers unparalleled durability and resistance to te

£14.23
B2C

New
B2C Pond Liner Underlay, Heavy Duty Polypropylene, Protects Pond Liner from Punctures (3m x 5m)
Protective Layer: Pond liner underlay is a thick, interwoven geotextile material placed between your pond liner and the

£9.99
Swell UK

New
Swell UK 4 x 5m Pond Liner and Free Underlay | Ideal for Koi & Fish Pools Fountains and Streams | Flexible & Impermeable
[HEAVY DUTY] - 0.35MM HDPE High Density Polyethylene material pond liner which is sure to stand the test of time in the

£55.89
Swell UK

New
Swell 4 x 3m Pond Liner and Free Underlay | Ideal for Koi & Fish Pools Fountains and Streams | Flexible & Impermeable fo
[HEAVY DUTY] - 0.35MM HDPE High Density Polyethylene material pond liner which is sure to stand the test of time in the

£33.79
Swell UK

New
Swell UK 3m x 3m Pond Liner | 40 Year Guarantee | Free Underlay | UV Resistant | Garden Fish Ponds
AN INCREDIBLE COMBO- The most popular Swell UK pond liner teamed up with the most popular Swell UK underlay.

£25.39
allpondsolutions

New
allpondsolutions Pond Underlay White Thick Pond Liner Underlay 5x2m – Rot, Tear & Puncture Resistant
Perfect for small garden, fish and ornamental ponds

£34.98
17% Off
CYH

New
CYH Pond Liner 2M X 2M - Black Heavy Duty Underlay Garden Fish Ponds Preformed Liners - Garden Pool Membrane for Fish Po
【High Quality】The heavy duty pond liner is made of high quality HDPE material for flexibility, high durability and long

£9.99 £11.99
SolaDirect

New
Pond Liner Underlay 3 m x 5 m 50 GSM Geotextile Fabric - Protective Fleece Ground Mat for Garden Ponds - Fits PVC EPDM R
Stops Punctures and Tears - 50gsm geotextile underlay creates a cushioning barrier under your liner, helping protect aga

£13.49
Cost Wise

New
Cost Wise wildlife Garden pond liner WITH UNDERLAY, (5m x6m) Heavy Duty Garden Pond Liner for Ponds & Streams – Ideal fo
UNDERLAY INCLUDED-underlay should be used with a pond liner to help prevent stones and other sharp objects from punturin

£42.99

10 Liner Underlays deals are available from: Amazon stores, starting from £9.99.
The biggest discount we found is 17% on CYH Pond Liner 2M X 2M - Black Heavy Duty Underlay Garden Fish Ponds Preformed Liners - Garden Pool Membrane for Fish Ponds Landscaping Water Feature Streams Fountains Water Garden at Amazon.
The lowest price we found is £9.99 while the highest is £55.89.
Prices for the best Liner Underlays deals average at £25.11.
Last updated on March 24, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Liner Underlays.