Building Materials
Damp Proofing & Membranes delivery in Letchworth Garden City
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.
From SG6 to SG4, we price damp proofing delivered to Letchworth Garden City and confirm the drop point and date when you order.

Damp Proofing & Membranes to Letchworth Garden City: the basics
- How it arrives
- Rolls with a mixed load
- Postcode districts
- SG6, SG7, SG5, SG4
- Delivery
- Standard mainland delivery
- Nearby (straight line)
- Hitchin (3 mi), Stevenage (5 mi), Luton (11 mi)
- Daylight
- About 7h 45m on the shortest day
- Delivering to
- Letchworth Garden City, Hertfordshire
Our damp proofing range for Letchworth Garden City jobs
- 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.
- DPC rollsPolymer and bitumen damp-proof course in standard wall widths.
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.
Getting damp proofing onto your Letchworth Garden City site
Rolls are light enough to travel with a mixed load and are handed off at the kerb. Letchworth Garden City 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.
- Mention any overhead cables, low branches or narrow gateways, because they decide whether a crane offload is possible.
- Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
Working out quantities for your Letchworth Garden City job
An extension in Letchworth Garden City with 24 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 40 m² floor slab needs about 46 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.
Damp Proofing & Membranes in Letchworth Garden City: questions
Do you deliver damp proofing to trades and homeowners in Letchworth Garden City?
Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.
Where does the DPC go?
Usually at least 150 mm above outside ground level, linked to the floor DPM.
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 I add other materials to my Letchworth Garden City 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.
Other towns near Letchworth Garden City
- Damp Proofing & Membranes in Hitchin
- Damp Proofing & Membranes in Stevenage
- Damp Proofing & Membranes in Luton
- Damp Proofing & Membranes in Ampthill
- Damp Proofing & Membranes in Welwyn Garden City
- Damp Proofing & Membranes in Harpenden
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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.
