Capital Valley Plastics

Manufacturers of Gas Barriers, Damp Proof Membrane & DPC since 1987

Founded in 1987, CVP is an award winning manufacturer based in Cwmavon (South Wales). Situated within its own private grounds in the Welsh valleys, we have proven that industry can work with nature.

Our efforts to pro-actively and relentlessly improve our methodology behind every aspect of the business means that we are able to provide leading edge products with a sophisticated and reputable service.

Our Products


Radbar products are a specialist group of materials for the building industry, that have optimum technical specification and value for money. They include specialist damp proof courses, radon barriers, gas barriers and hydrocarbon barriers.


At Capital Valley Plastics we also manufacture a full range of entry level products, including damp proof membranes, general purpose sheeting and damp proof course. All of these are 100% recycled where building regulations allow.


Latest News

Capital Valley Plastics and TCS Geotechnics Team up

We are very pleased to be the approved manufacturer of Aquaflow SC Membrane, which is part of the market leading Formpave system for Sustainable Urban Drainage. The Aquaflow SC Membrane is a high quality membrane that offers high resistance to…

27 Sep 2016
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Improving damp proofing in Africa

Pora Ventures, our exclusive African partners, have been working very hard to increase awareness of the importance of using the correct materials with correct installation to prevent damp.           Damp is a very common problem in…

05 Sep 2016
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