Damp Proofing & Membranes for East Grinstead, delivered to site

Damp Proofing & Membranes we supply in East Grinstead

• Cavity trays and stop endsTo direct water out of the cavity over openings.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• Weep ventsFor drainage and ventilation at the base of cavities and over trays.
• Radon barriersGas-resistant membranes for areas that need radon protection.

How much will you need?

An extension in East Grinstead with 16 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 30 m² floor slab needs about 34.5 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Before your East Grinstead delivery arrives

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

• In summer East Grinstead gets around 16h 34m of daylight, but early deliveries still beat the traffic and give the longest working day.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.
• On busy streets in East Grinstead, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.

Things to check before you order

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.

Your questions answered

Can I add other materials to my East Grinstead 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.

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.

What is the difference between DPC and DPM?

DPC is a strip built into walls to stop damp rising through the masonry. DPM is a sheet laid under a concrete floor slab. They are lapped together so there is no gap.

How soon can damp proofing be delivered in East Grinstead?

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.