Damp Proofing & Membranes delivered to Gerrards Cross

Which damp proofing can you order in Gerrards Cross?

• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• Radon barriersGas-resistant membranes for areas that need radon protection.
• DPC rollsPolymer and bitumen damp-proof course in standard wall widths.
• Weep ventsFor drainage and ventilation at the base of cavities and over trays.

How delivery works in Gerrards Cross

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

• In summer Gerrards Cross gets around 16h 39m of daylight, but early deliveries still beat the traffic and give the longest working day.
• Mention any overhead cables, low branches or narrow gateways, because they decide whether a crane offload is possible.
• If the site is up a shared drive or behind other houses, tell us the distance from the road.

Quantities: a worked example

An extension in Gerrards Cross with 28 m of cavity wall needs DPC in both leaves: about 3 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.

Picking the right product

Laps and joints

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

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.

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.

Damp Proofing & Membranes in Gerrards Cross: questions

Do you deliver damp proofing to Gerrards Cross?

Yes. We deliver across Gerrards Cross, including SL9, SL3, SL2, HP9. Gerrards Cross is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.

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.

Do you supply cavity trays?

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

Is there a minimum order for delivery to Gerrards Cross?

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.