Damp Proofing in Kensington and Chelsea

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Damp Proofing in Kensington and Chelsea

Extensions including garage conversions will usually require additional damp proofing to be installed through the conversion, as the existing garage will typically have a single skin design for walls and floors, which was not designed to comply with building regulations for habitable rooms. This damp proofing will have to be added to walls and floors. Furthermore, the roof of the garage conversion will need water proofing. The damp proofing for the floor of the garage conversion will usually be performed by using a damp proof membrane. This membrane is available 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 whether the floor will be a solid or a floating floor. In some garages, the walls have been damp proofed, but this may need to be improved as part of the conversion in order to meet current building regulations. The walls will need to be damp proofed to be able to safeguard the brickwork from rotting slowly as moisture sets in. This is performed by either making use of damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls already present in the garage. Damp proofing is an important part of the building regulations that the garage conversion will need to comply with, therefore is it necessary to make sure that your garage conversion makes use of suitable damp proofing methods.

Average Damp proofing cost in Kensington and Chelsea

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 Kensington and Chelsea, as reported by local LeadsDoWork members.

Damp proofing installation cost in Kensington and Chelsea 2026

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

Time frame: 3-5 days

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Kensington and Chelsea

The Royal Borough of Kensington and Chelsea is an inner London borough of Royal borough status, to the west of the centre. The borough was formed in 1965 from the former boroughs of Kensington and Chelsea. Kensington's Royal Borough status was inherited by the new borough. It covers an area of 4.68 square miles. As the smallest borough in London as well as the second smallest district in England, this urban area is among the most densely populated within the United Kingdom.

In line with estimates from the middle of 2014, the borough includes a permanent population of approximately 156190 individuals.

The borough is immediately to the west of the City of Westminster and to the east of the London Borough of Hammersmith and Fulham. It consists of main museums and universities in Albertopolis, department stores like Harrods, Peter Jones and Harvey Nichols, and embassies in Belgravia, Knightsbridge and Kensington Gardens. It is home to the Notting Hill Carnival, Europe's biggest. It contains lots of the most expensive residential districts in London and even in the world, and also districts with high levels of social housing and poverty. The local authority is Kensington and Chelsea London Borough Council. The borough's motto is Quam Bonum in Unum Habitare, which is usually roughly translated as 'How good to dwell in unity'.

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Damp Proofing in Kensington and Chelsea

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