Building Materials
Damp Proofing & Membranes delivery in Swanley
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.
Building in Swanley? Send us your list and we will come back with a delivered price for the damp proofing and anything else on it.

Your Swanley delivery
- Daylight
- About 7h 51m on the shortest day
- Nearby (straight line)
- Bexley (3 mi), Dartford (4 mi), Welling (5 mi)
- How it arrives
- Rolls with a mixed load
- Delivery
- Standard mainland delivery
- Delivering to
- Swanley, Kent
- Postcode districts
- BR8, DA4, DA2
Which damp proofing can you order in Swanley?
- DPC rollsPolymer and bitumen damp-proof course in standard wall widths.
- 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.
Damp Proofing & Membranes: choosing well
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.
A quick quantity check
An extension in Swanley with 20 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.
Delivery to Swanley: what helps
Rolls are light enough to travel with a mixed load and are handed off at the kerb. Swanley is inside our standard mainland delivery area.
- If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
- Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
- Mention any overhead cables, low branches or narrow gateways, because they decide whether a crane offload is possible.
Damp Proofing & Membranes questions
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 Swanley?
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.
Do you deliver damp proofing to trades and homeowners in Swanley?
Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.
Do you supply cavity trays?
Yes, with stop ends and weep vents for openings and abutments.
Nearby towns we deliver damp proofing to
- Damp Proofing & Membranes in Bexley
- Damp Proofing & Membranes in Dartford
- Damp Proofing & Membranes in Welling
- Damp Proofing & Membranes in Eltham
- Damp Proofing & Membranes in Thamesmead
- Damp Proofing & Membranes in Grays
More materials delivered to Swanley
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.
