Order damp proofing for delivery in Leatherhead

Choosing from our damp proofing range

• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• Radon barriersGas-resistant membranes for areas that need radon protection.
• DPC rollsPolymer and bitumen damp-proof course in standard wall widths.

Estimating your damp proofing

An extension in Leatherhead with 12 m of cavity wall needs DPC in both leaves: about 1 roll in 30 m lengths once laps are allowed for. A 50 m² floor slab needs about 57.5 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Getting the right damp proofing

Laps and joints

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

DPC width

Match the DPC width to the wall leaf so it runs the full width of the masonry.

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.

How delivery works in Leatherhead

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

• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.
• If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
• Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.

Ordering damp proofing for Leatherhead: FAQs

How thick should a DPM be?

1200-gauge polythene, around 300 microns, is a common specification for floor slabs. Your design may call for something different.

Can I add other materials to my Leatherhead delivery?

Yes. Put everything on one list, from damp proofing to fixings and PPE, and we will price it as one delivery where the products can travel together.

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.

Can you deliver damp proofing to a site with restricted access in Leatherhead?

Usually, yes. Tell us about the access when you ask for a price and we will plan the vehicle and offload, or say if a smaller vehicle is needed.