Building Materials
Damp Proofing & Membranes for sites in East Sussex
Damp proofing materials stop moisture rising or passing through a building: a damp-proof course (DPC) in the walls and a damp-proof membrane (DPM) under the floor.
Builders, trades and self-builders in East Sussex can order damp proofing for delivery to Brighton, Portslade and the towns in between.

East Sussex at a glance
- Covering
- 10 towns across East Sussex
- Postcode areas
- BN, TN
- Delivery
- Standard mainland delivery
- How it arrives
- Rolls with a mixed load
- Neighbouring areas
- West Sussex, Surrey, Kent
Damp Proofing & Membranes we supply in East Sussex
- Weep ventsFor drainage and ventilation at the base of cavities and over trays.
- DPM sheetingHeavy-gauge polythene membrane under concrete floors.
- Liquid DPM and tankingCoatings for screeds and below-ground walls.
- Cavity trays and stop endsTo direct water out of the cavity over openings.
- Radon barriersGas-resistant membranes for areas that need radon protection.
Damp Proofing & Membranes delivered in East Sussex towns
- Damp Proofing & Membranes in Brighton
- Damp Proofing & Membranes in Eastbourne
- Damp Proofing & Membranes in Hastings
- Damp Proofing & Membranes in Hove
- Damp Proofing & Membranes in Bexhill-on-Sea
- Damp Proofing & Membranes in Hailsham
- Damp Proofing & Membranes in Seaford
- Damp Proofing & Membranes in Rottingdean
- Damp Proofing & Membranes in Crowborough
- Damp Proofing & Membranes in Portslade
How much will you need?
An extension in East Sussex with 24 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 20 m² floor slab needs about 23 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.
Delivering damp proofing in East Sussex
Rolls are light enough to travel with a mixed load and are handed off at the kerb. Our standard mainland delivery area covers East Sussex.
- If neighbours share the access, it helps to let them know a lorry is coming.
- Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
- If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
Damp Proofing & Membranes: choosing well
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.
Your questions answered
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 East Sussex?
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.
How soon can damp proofing be delivered in East Sussex?
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.
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.
Damp Proofing & Membranes in neighbouring areas
- Damp Proofing & Membranes in West Sussex
- Damp Proofing & Membranes in Surrey
- Damp Proofing & Membranes in Kent
- Damp Proofing & Membranes in Greater London
- Damp Proofing & Membranes in Hampshire
More materials delivered across East Sussex
Send your list, get a delivered price
Tell us what you need and where it is going. We check the quantities and come back with a delivered price before you commit.
