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As one of the leading membrane manufacturing companies in the UK you can rest assured that your Capital Valley Plastics membrane will perform its function of protecting your family and property.

Our membranes are independently tested to ensure that their performance meets national standards and guidance, all membranes are guaranteed for the lifetime of the building.

Looking for Radbar?

The Radbar range includes specialist damp proof courses, radon barriers, gas barriers and hydrocarbon barriers.

Resources & downloads

Here you can obtain certificates, installation guides and more relating to Capital products.


Our state of the art recycling and manufacturing processes ensure that optimum performance is maintained alongside optimum sustainability.

Get in touch

Capital Valley Plastics Ltd
Cwmavon Works,
nr. Pontypool
Gwent NP4 8UW

01495 772255

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