Building Materials
Damp Proofing & Membranes delivered across County Antrim
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 County Antrim can order damp proofing for delivery to Belfast, Antrim and the towns in between.

County Antrim at a glance
- Covering
- 6 towns across County Antrim
- Postcode areas
- BT
- Delivery
- Quoted individually (Northern Ireland)
- How it arrives
- Rolls with a mixed load
- Neighbouring areas
- County Down, County Armagh, County Londonderry
Our damp proofing range for County Antrim jobs
- Cavity trays and stop endsTo direct water out of the cavity over openings.
- Radon barriersGas-resistant membranes for areas that need radon protection.
- Weep ventsFor drainage and ventilation at the base of cavities and over trays.
- Liquid DPM and tankingCoatings for screeds and below-ground walls.
- DPM sheetingHeavy-gauge polythene membrane under concrete floors.
Damp Proofing & Membranes delivered in County Antrim towns
- Damp Proofing & Membranes in Belfast
- Damp Proofing & Membranes in Lisburn
- Damp Proofing & Membranes in Newtownabbey
- Damp Proofing & Membranes in Carrickfergus
- Damp Proofing & Membranes in Ballymena
- Damp Proofing & Membranes in Antrim
Working out quantities for your County Antrim job
An extension in County Antrim with 12 m of cavity wall needs DPC in both leaves: about 1 roll in 30 m lengths once laps are allowed for. A 25 m² floor slab needs about 28.7 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.
Before your County Antrim delivery arrives
Rolls are light enough to travel with a mixed load and are handed off at the kerb. Deliveries to Northern Ireland include a sea crossing, so we quote each order individually.
- Mention any overhead cables, low branches or narrow gateways, because they decide whether a crane offload is possible.
- If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
- Give us the full postcode for the drop point; deliveries around BT are priced to the exact address.
Before you order damp proofing
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.
DPC width
Match the DPC width to the wall leaf so it runs the full width of the masonry.
In Northern Ireland building work follows the Building Regulations (Northern Ireland), with guidance in the Technical Booklets, and applications go to the council's building control team.
Common questions from County Antrim
How soon can damp proofing be delivered in County Antrim?
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 County Antrim?
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.
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.
Damp Proofing & Membranes in neighbouring areas
- Damp Proofing & Membranes in County Down
- Damp Proofing & Membranes in County Armagh
- Damp Proofing & Membranes in County Londonderry
- Damp Proofing & Membranes in County Tyrone
- Damp Proofing & Membranes in County Fermanagh
More materials delivered across County Antrim
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.
