Damp Proofing & Membranes for sites in Hertfordshire

Our damp proofing range for Hertfordshire jobs

• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• Weep ventsFor drainage and ventilation at the base of cavities and over trays.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• Radon barriersGas-resistant membranes for areas that need radon protection.
• Cavity trays and stop endsTo direct water out of the cavity over openings.

Damp Proofing & Membranes delivered in Hertfordshire towns

• Damp Proofing & Membranes in Watford
• Damp Proofing & Membranes in Hemel Hempstead
• Damp Proofing & Membranes in Stevenage
• Damp Proofing & Membranes in St Albans
• Damp Proofing & Membranes in Welwyn Garden City
• Damp Proofing & Membranes in Cheshunt
• Damp Proofing & Membranes in Hatfield
• Damp Proofing & Membranes in Bishop's Stortford
• Damp Proofing & Membranes in Borehamwood
• Damp Proofing & Membranes in Hitchin
• Damp Proofing & Membranes in Hoddesdon
• Damp Proofing & Membranes in Letchworth Garden City
• Damp Proofing & Membranes in Harpenden
• Damp Proofing & Membranes in Bushey
• Damp Proofing & Membranes in Hertford
• Damp Proofing & Membranes in Rickmansworth
• Damp Proofing & Membranes in Potters Bar
• Damp Proofing & Membranes in Berkhamsted

A quick quantity check

An extension in Hertfordshire with 28 m of cavity wall needs DPC in both leaves: about 3 rolls in 30 m lengths once laps are allowed for. A 30 m² floor slab needs about 34.5 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

How delivery works in Hertfordshire

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

• If the site is up a shared drive or behind other houses, tell us the distance from the road.
• If neighbours share the access, it helps to let them know a lorry is coming.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.

Things to check before you order

DPC width

Match the DPC width to the wall leaf so it runs the full width of the masonry.

Laps and joints

DPM and DPC need generous laps and sealed joints; follow the manufacturer's guidance.

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.

Questions about damp proofing delivery in Hertfordshire

Where does the DPC go?

Usually at least 150 mm above outside ground level, linked to the floor DPM.

Can you deliver damp proofing to a site with restricted access in Hertfordshire?

Usually, yes. Tell us about the access when you ask for a price and we will plan the vehicle and offload, or say if a smaller vehicle is needed.

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.

Do you deliver damp proofing to Hertfordshire?

Yes. We deliver across Hertfordshire, including WD, HP, SG, AL, EN, CM. Our standard mainland delivery area covers Hertfordshire. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.