The high quality pond liner underlay materials we supply are all sourced from leading European manufacturers and are superior non-woven, needle-punched, polypropylene geotextiles. Our pond underlay offers exceptionally high performance and provides a highly effective protective barrier between substrate and liner. We recommend our Heavy Duty Underlay is used beneath all our liners, not only to help protect liners from penetration by sharp stones, roots, etc, but also to reduce excessive localised stretching of the liner when ground settlement occurs over time.
The geotextile materials we source are actually developed for commercial road building and ground stabilisation applications and are far superior to many cheaper underlay felts available for the pond liner market. We would recommend comparing technical specifications of our materials before being lead by price, remember the underlay has to protect your pond liner for the whole of its life. Please go to our downloads page for Specification Sheets to compare the Protective Properties of the materials, such as Puncture Resistance and Tensile Strength.
Pond grade or heavy duty underlay?
We supply Pond Liner Underlay in two grades, a budget Pond Grade Underlay (150-180gsm) ideal for garden ponds and a more robust Heavy Duty Underlay (250-260gsm) for landscapers and larger projects. Depending upon manufacturer and specification, these materials can be white or light grey in appearance.
Our 50 years trading experience reinforces our belief that quality pond building begins with selecting high quality products from the industry leading suppliers. Using cheaper materials with a lower grade specification could potentially lead to a liner failure in years to come. We suggest fitting the highest grade of Underlay your budget allows.
For easy identification and Quality Control purposes, the materials are printed at regular intervals with manufacturer material grade details.
We supply our Pond Underlay as complete rolls for landscapers, compact short rolls for Aquatic Centres, and as cut-to-size bales for garden pond builders. Both Grades are supplied as 2 metre wide sheets folded to 1m wide and cut to length as Bales from 2m x 2m upto 2m x 12m, as Rolls 2m x 25m (Pond Grade), 2m x 30m (Heavy Duty) to fit our mini rolls stands for Aquatic centres, and as rolls 2m or 5.25m widths x 100m/150m/200m for larger landscaping work and can be delivered direct to site.
We also prepack the budget Pond Grade Underlay as 2m x 5m bales for Aquatic Centres using our pond liner prepack display stands.