Damp Proofing in Gwent

Compare Damp Proofing Prices in Gwent

Damp Proofing in Gwent

Extensions such as garage conversions will usually require supplementary damp proofing to be installed during the conversion, as the existing garage will typically have a single skin design for walls and floors, which was not built to comply with building regulations for habitable rooms. This damp proofing will have to be put into walls and floors. Additionally, the roofing of the garage conversion will need water proofing. The damp proofing for the floor of the garage conversion will in most cases be achieved by utilising a damp proof membrane. This membrane is available in either solid or liquid form. The damp proof membrane will be placed down either on top of the pre-existing concrete floor, below the new floor, or as part of both, depending on whether the floor will be a solid or a floating floor. In a few garages, the walls have already been damp proofed, but this may have 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 protect the brickwork from rotting slowly as moisture sets in. This is done by either applying damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls already present in the garage. Damp proofing is a part of the building regulations that the garage conversion should comply with, therefore is it necessary to ensure that your garage conversion incorporates suitable damp proofing methods.

Average Damp proofing cost in Gwent

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 Gwent, as reported by local LeadsDoWork members.

Damp proofing installation cost in Gwent 2026

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

Time frame: 3-5 days

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Damp proofing Projects in Gwent in June 2026

8,067

Requests for quotations in Gwent in June 2026

0

Requests for Damp proofing quotations in Gwent in June 2026. 0% change from May 2026.

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Requests for Damp proofing quotations in Wales in June 2026. 0% change from May 2026.

Source: Numbers calculated based on the search volumes in major search engines

Damp proofing searches in cities and towns near Gwent June 2026

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Gwent

The preserved region of Gwent in south east Wales has the largest population in the country with more than 550,000 residents. Under the Local Government Act in 1994, Gwent was abolished but continues to be for ceremonial purposes. At that time Gwent was divided into several regions, including Monmouthshire and the city of Newport. For your household improvements, make sure you only use respected companies in Gwent to ensure a high quality of work.

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17 Jun

Building work | Damp Proofing

Newport - NP19

Enquiry from: Nigel W

Start Date: Immediate

Damp in hallway and corner of living room

Damp Proofing in Gwent

Compare Damp Proofing Prices in Gwent