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

Talywain Youth RFC new kit

Roger presented Talywain Youth RFC with a new kit on Saturday before a well deserved victory over RTB Ebbw Vale in the Gwent Cup. Well done lads, great start, keep up the good work.

18 Nov 2016
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UK Construction Week Exhibition

We are really pleased to have had a great few days exhibiting at UK Construction Week at the NEC, Birmingham. Thank you to all customers and colleagues new and old who came along to visit our stand. Capital Valley Plastics would like…

26 Oct 2016
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