Damp Proofing in London

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Damp Proofing in London

Extensions including garage conversions will typically require extra damp proofing to be added through the conversion, as the existing garage typically has a single skin design for walls and floors, which was not designed to conform to building regulations for habitable rooms. This damp proofing will need to be put into walls and floors. Furthermore, the roofing of the garage conversion will require water proofing. The damp proofing for the floor of the garage conversion will often be achieved by employing a damp proof membrane. This membrane can come in either solid or liquid form. The damp proof membrane will be put down either on top of the existing concrete floor, underneath the new floor, or as part of both, depending on if the floor will be a solid or a floating floor. In some garages, the walls will have already been damp proofed, but this may need to be improved as part of the conversion to be able to comply with current building regulations. The walls should be damp proofed to be able to protect the brickwork from rotting slowly as moisture sets in. This can be accomplished by either using damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already present in the garage. Damp proofing is an important part of the building regulations that the garage conversion should comply with, and so is it vital to make sure that your garage conversion makes use of appropriate damp proofing methods.

Average Damp proofing cost in London

The average cost of Damp proofing is £1500. Costs vary based upon the materials and the organisation selected. The upper price range can be as high as £1725. The material costs are in general about £375

Average price per Damp proofing job in 2026

Avg. price low	Avg. price low £1,125
Avg. price	Avg. price £1,500
Avg. price high	Avg. price high £1,725

£1900

£1425

£950

£475

£0

Prices based on actual Damp proofing costs for London, as reported by local LeadsDoWork members.

Damp proofing installation cost in London 2026

	Labour cost	£1,050
	Material cost	£375
	Waste removal	£75

Time frame: 3-5 days

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England's capital city is now recovering from a successful Olympic Games and this huge multi-million pounds venture, coupled with various homes strategies, has modernised the city post-war. Regardless of this, there are still loads of buildings presenting an insight into the past and Tudor, Georgian and Victorian properties line the roads. With a contrast of the aged and the new, there are several initiatives home owners take on, from energy efficiency upgrades to house extensions.

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Similar Customer Enquiries for Damp proofing in London

10 Sep

Damp proofing

London - SW16

Enquiry from: Jigisha S

Start Date: Immediate

Hi dear, We having damp problem in our outbuilding in the garden.Skirting board shows sign of it as broken.Do you offer free visit for insepection and survey then please do contact me

Damp Proofing in London

Obtain Damp Proofing Prices in London