Extensions such as garage conversions will typically require additional damp proofing to be added through the conversion, as the existing garage will often have a single skin design for walls and floors, which was not manufactured to comply with building regulations for habitable rooms. This damp proofing will need to be put into walls and floors. Additionally, the roofing of the garage conversion will require water proofing. The damp proofing for the floor of the garage conversion will most likely be achieved by by using a damp proof membrane. This membrane can come 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 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 will need to be damp proofed in order to safeguard the brickwork from rotting slowly as moisture sets in. This can be 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 will need to comply with, and so is it important to make sure that your garage conversion incorporates appropriate damp proofing methods.
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
| Avg. price low | Avg. price low |
|---|---|
| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
£1900
£1425
£950
£475
£0
| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in Abergavenny in May 2026
Requests for Damp proofing quotations in Abergavenny in May 2026. 0% change from April 2026.
Requests for Damp proofing quotations in Gwent in May 2026. 0% change from April 2026.
Abergavenny is a market town in Monmouthshire, Wales. It is around 15 miles west of Monmouth on two dual carriageways, and also 6 miles from the English border. Because of this geographical fact, the town is often referred to as the 'Gateway to Wales'. Established at the convergence of a tributary stream, the Gavenny and the River Usk, it is essentially entirely neighbored by two mountains, the Blorenge and the Sugar Loaf, and 5 hills. It offers a path to the Black Mountains as well as the Brecon Beacons National Park. The Offa's Dyke Path is nearby and the Marches Way, the Beacons Way and Usk Valley Walk all pass through the town. In the past the site of a Roman fort, Gobannium, it evolved into a medieval walled town within the Welsh Marches. As per the 2011 Census, the town has a permanent resident population of 10078. Within this population, about 10 percent speak Welsh, appearing to increase considerably from the 2% recorded in 1991. The town contains the remains of a medieval stone castle developed not long after the Norman invasion of Wales. As a traditional market town, a broad range of markets are held in the Market Hall, including things like a retail market, a farmers' market, an antique fair and a craft fair. The town was also host to the 2016 National Eisteddfod of Wales, an annual celebration of the culture and language in Wales. It often brings in in excess of 150000 visitors and more than 250 stalls each year. For all of your house upgrades, make sure to make use of trustworthy specialists in Abergavenny to make certain of quality.
Crickhowell - NP7
Enquiry from: Will H
Start Date: Immediate
mushrooms appearing on ceiling for some months.small area in the toilet. rain last night has allowed a lot of water to drip over a large area are you the property owner: owner of the property how man...
Crickhowell - NP7
Enquiry from: Jeanne M
Start Date: Immediate
Suspected rising damp on outside wall of front reception room . Property for sale , we are looking to buy but need quote following building survey. Any contractors would need to obtain keys from Parry...
Crickhowell - NP7
Enquiry from: Belinda S
Start Date: Immediate
there are mold issue in our kitchen area, not sure if it's rising damp or some other issue. are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms proper...
Crickhowell - NP7
Enquiry from: Megan W
Start Date: Immediate
Review of some Damp walls across various areas of the house. Not sure what is causing it. Can provide pictures if needed but am looking for someone to provide a solution
Crickhowell - NP7
Enquiry from: Emma D
Start Date: Immediate
Floor has just been lifted and it appears that there are signs of damp. We don't know what to do!
Crickhowell - NP7
Enquiry from: Jennifer D
Start Date: Immediate
find out why there is damp in the bedroom are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: semi detached please call to appoint
Crickhowell - NP7
Enquiry from: Holly J
Start Date: Immediate
Good Afternoon, We are currently in the process of buying a house in Abergavenny and on the home buyers survey it has been noted that a DPC is needed on the ground floor and also there is some issu...
Crickhowell - NP7
Enquiry from: Lewis C
Start Date: Immediate
require a damp and timber survey on our grade ii listed cottage. rics report has indicated high damp readings in ground floor walls and floors. also, evidence of wood boring beetle in the first floor ...
Crickhowell - NP7
Enquiry from: M M
Start Date: Immediate
Homeowner Please contact to appoint *
Crickhowell - NP7
Enquiry from: Andrew W
Start Date: 3+ months
Are you the property owner: Owner of the property Chimney breast to be damp proofed How many rooms do you need damp proofing: 1 room Property Type: Detached Please call to appoint
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You should make sure that all signs of damp have gone before you redecorate your walls. If you want to paint your walls with a water-permeable emulsion paint, you can usually do this after 1 or 2 months. For other types of decoration you should wait longer.
Signs of rising damp tend to be close to the ground, usually no higher than a metre. It usually works its way up walls in horizontal lines. Penetrating damp usually develops in patches and can often be much higher up. For more advice, speak to a damp proofing professional.
Damp is a serious problem, particularly if you live in an old property, because it can lead to structural damage. This will cost you big money and could be very dangerous, to yourself and the property. Take damp seriously and get it inspected and resolved as soon as you discover it!
There are a few visible signs of damp, although it often goes undetected. However, in older or empty properties, this made become detectable through its smell. These include peeling paint and wallpaper, crumbling plaster, mould growth, black spots or spores on walls and ceilings, and rotting skirting boards and flooring.
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