Building Materials
Damp Proofing & Membranes delivered to Walthamstow
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.
For jobs in Walthamstow we quote damp proofing as a delivered price to your postcode, with the vehicle and offload method agreed up front.

Walthamstow delivery at a glance
- Daylight
- About 7h 49m on the shortest day
- Postcode districts
- E17, IG8, E11, E18
- How it arrives
- Rolls with a mixed load
- Delivery
- Standard mainland delivery
- Delivering to
- Walthamstow, Greater London
- Nearby (straight line)
- Leytonstone (2 mi), Tottenham (2 mi), Woodford Green (2 mi)
Damp Proofing & Membranes we supply in Walthamstow
- Radon barriersGas-resistant membranes for areas that need radon protection.
- DPM sheetingHeavy-gauge polythene membrane under concrete floors.
- Weep ventsFor drainage and ventilation at the base of cavities and over trays.
- Liquid DPM and tankingCoatings for screeds and below-ground walls.
Sizing your order
An extension in Walthamstow with 24 m of cavity wall needs DPC in both leaves: about 2 rolls 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.
Before your Walthamstow delivery arrives
Rolls are light enough to travel with a mixed load and are handed off at the kerb. Walthamstow is inside our standard mainland delivery area.
- Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.
- Clear a level area for pallets, ideally on boards, so materials stay out of standing water.
- Give us the full postcode for the drop point; deliveries around E17 are priced to the exact address.
Choosing damp proofing
DPC width
Match the DPC width to the wall leaf so it runs the full width of the masonry.
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.
Ordering damp proofing for Walthamstow: FAQs
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.
Do you deliver damp proofing to Walthamstow?
Yes. We deliver across Walthamstow, including E17, IG8, E11, E18. Walthamstow 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 deliver damp proofing to trades and homeowners in Walthamstow?
Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.
Nearby towns we deliver damp proofing to
- Damp Proofing & Membranes in Leytonstone
- Damp Proofing & Membranes in Tottenham
- Damp Proofing & Membranes in Woodford Green
- Damp Proofing & Membranes in Chingford
- Damp Proofing & Membranes in Edmonton
- Damp Proofing & Membranes in Stratford
Complete your Walthamstow order
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.
