Damp Proofing & Membranes delivered across Northamptonshire

What damp proofing can we deliver to Northamptonshire?

• DPC rollsPolymer and bitumen damp-proof course in standard wall widths.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• 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.

Damp Proofing & Membranes delivered in Northamptonshire towns

• Damp Proofing & Membranes in Northampton
• Damp Proofing & Membranes in Corby
• Damp Proofing & Membranes in Kettering
• Damp Proofing & Membranes in Wellingborough
• Damp Proofing & Membranes in Rushden
• Damp Proofing & Membranes in Daventry

Estimating your damp proofing

An extension in Northamptonshire with 32 m of cavity wall needs DPC in both leaves: about 3 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.

Before your Northamptonshire delivery arrives

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Our standard mainland delivery area covers Northamptonshire.

• Give us the full postcode for the drop point; deliveries around NN are priced to the exact address.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.
• If neighbours share the access, it helps to let them know a lorry is coming.

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.

Your questions answered

Do you deliver damp proofing to Northamptonshire?

Yes. We deliver across Northamptonshire, including NN, LE, CV. Our standard mainland delivery area covers Northamptonshire. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.

Do you deliver damp proofing to trades and homeowners in Northamptonshire?

Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.

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.

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.