Damp Proofing & Membranes delivered to Catford

What damp proofing can we deliver to Catford?

• Radon barriersGas-resistant membranes for areas that need radon protection.
• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• Cavity trays and stop endsTo direct water out of the cavity over openings.

Before your Catford delivery arrives

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Catford is inside our standard mainland delivery area.

• Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
• If the site is up a shared drive or behind other houses, tell us the distance from the road.
• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.

Picking the right product

Is radon protection needed?

Parts of the UK need radon protection in new buildings and extensions. UKHSA radon maps show the areas; building control will tell you what applies.

Laps and joints

DPM and DPC need generous laps and sealed joints; follow the manufacturer's guidance.

In England, building work is checked against the Approved Documents, for example Part A for structure and Part L for energy efficiency, through your council's building control team or a registered building control approver.

Quantities: a worked example

An extension in Catford with 16 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 15 m² floor slab needs about 17.2 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Damp Proofing & Membranes questions

Do you supply cavity trays?

Yes, with stop ends and weep vents for openings and abutments.

Is there a minimum order for delivery to Catford?

There is no fixed minimum. For very small orders we will tell you honestly if the delivery cost outweighs the materials, so you can decide.

Do I need a radon barrier?

It depends on where you are. In radon-affected areas building control requires radon protection in new buildings and extensions.

How soon can damp proofing be delivered in Catford?

We confirm the delivery date when we price your order, before you commit. It depends on the product, the quantity and whether it is a stock line or made to order.