Extensions including garage conversions will often 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 manufactured to be in accordance with building regulations for habitable rooms. This damp proofing should be put into walls and floors. Additionally, the roofing of the garage conversion will require water proofing. The damp proofing of the floor of the garage conversion will usually be performed 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, below 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 updated as part of the conversion in order to adhere to current building regulations. The walls will need to be damp proofed to be able to protect the brickwork from rotting gradually as moisture sets in. This is done by either making use of 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 integral part of the building regulations that the garage conversion should comply with, therefore is it necessary to make sure that your garage conversion makes use of suitable 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 County Antrim in January 2025
Requests for Damp proofing quotations in County Antrim in January 2025. 0% change from December 2024.
Requests for Damp proofing quotations in Northern Ireland in January 2025. 0% change from December 2024.
Belfast - BT9
Enquiry from: Carl P
Start Date: Immediate
Hi there! I had a homebuyers report done on the property and was advised to seek a damp specialist to inspect and advise based on "high damp meter readings taken throughout the original property at gr...
Ballymena - BT42
Enquiry from: Sharon M
Start Date: Immediate
Survey to establish cause of damp
Belfast - BT13
Enquiry from: Mark M
Start Date: Immediate
Mold showing on bedroom ceiling and some walls.
Ballymena - BT42
Enquiry from: Jamie R
Start Date: Immediate
Need a survey on damp, condensation build up
Newtownabbey - BT36
Enquiry from: Julie H
Start Date: Immediate
Got roof replaced and insulated, also cavity wall insulation. Still getting damp round ceiling and wall joining into ceiling in our bedroom. Probably condensation damp as window always wet next morn...
Ballymoney - BT53
Enquiry from: Jade B
Start Date: Immediate
hello, we had a small amount of damp in one of our rooms, had a wood burning stove with flexi flue liner fitted earlier this year and over the last few days have had a large damp patch appear on the ...
Belfast - BT13
Enquiry from: Niyi A
Start Date: Immediate
condensation, mould and rising damp
Belfast - BT13
Enquiry from: Ashleigh R
Start Date: Immediate
Damp detected in ground floor of the property and upstairs in second bedroom ceiling.
Belfast - BT5
Enquiry from: Shelley T
Start Date: Immediate
Full damp course in living room. Following a surveyors report before purchasing the property.
Carrickfergus - BT38
Enquiry from: Robyn O
Start Date: Immediate
damp proofing in living room and kitchen - please can someone call out to inspect - thank you.
Belfast - BT8
Enquiry from: Bryony R
Start Date: Immediate
Hello, My partner and I are in the process of purchasing our first property. We have just received our survey back and it has identified a number of concerns with the house including woodworm and d...
Newtownabbey - BT36
Enquiry from: Michael T
Start Date: Immediate
Check where condensation is coming from ... its a rental property so not sure if the tenants are opening windows etc and plaster off wall at neighbours house need to check no damp coming in through th...
Belfast - BT4
Enquiry from: Aaron H
Start Date: Immediate
Penetrating damp in front and back wall of a ground floor terrace house
Ballymoney - BT53
Enquiry from: Hannah G
Start Date: Immediate
We live in an older house and we have a few areas that are mold prone. As well as wet walls and some rising damp.
Newtownabbey - BT37
Enquiry from: Elaine D
Start Date: Immediate
Survey of the property due to recent issues arising.
Newtownabbey - BT36
Enquiry from: Julie M
Start Date: Immediate
Damp patches in upstairs bedroom extensive wet patches
Ballymena - BT44
Enquiry from: John M
Start Date: Immediate
Older stone constructed house. Noticed floor boards were warped. When I investigated I found very wet in subfloor.
Carrickfergus - BT38
Enquiry from: Paul M
Start Date: Immediate
Rising damp in downstairs rooms - Living room /Dining room & Kitchen, The house was built in 1928 so I believe there is no DPC
Duneight - BT27
Enquiry from: Jorg H
Start Date: Immediate
Hi There, I need a quote for my brick wall which is very wet.
Belfast - BT7
Enquiry from: Ciara S
Start Date: Immediate
Mould present throughout house, especially on top floor bedroom, near bedroom. Want to find rot of the problem and stop any future damp problems
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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!
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.
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.
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.
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