Damp Proofing & Membranes for Surbiton, delivered to site

Our damp proofing range for Surbiton jobs

• Radon barriersGas-resistant membranes for areas that need radon protection.
• DPC rollsPolymer and bitumen damp-proof course in standard wall widths.
• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• Cavity trays and stop endsTo direct water out of the cavity over openings.

A quick quantity check

An extension in Surbiton with 20 m of cavity wall needs DPC in both leaves: about 2 rolls 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.

Getting the right damp proofing

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.

Planning the drop in Surbiton

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Surbiton is inside our standard mainland delivery area.

• For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.
• Clear a level area for pallets, ideally on boards, so materials stay out of standing water.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.

Your questions answered

Can I add other materials to my Surbiton 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.

Where does the DPC go?

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

Do you supply cavity trays?

Yes, with stop ends and weep vents for openings and abutments.

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

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.