Extensions including garage conversions will typically require supplementary damp proofing to be installed through the conversion, as the pre-existing garage routinely has a single skin design for walls and floors, which was not manufactured to conform to building regulations for habitable rooms. This damp proofing should be added to walls and floors. Furthermore, the roofing of the garage conversion will need water proofing. The damp proofing of the floor of the garage conversion will often be achieved by using 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 whether the floor will be a solid or a floating floor. In some garages, the walls have been damp proofed, but this might have to be updated as part of the conversion to be able to meet current building regulations. The walls will need to be damp proofed to be able to safeguard the brickwork from rotting gradually as moisture sets in. This can be carried out 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 an important part of the building regulations that the garage conversion will need to comply with, therefore is it vital to ensure that your garage conversion makes use of 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 |
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| 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 Coleraine in December 2024
Requests for Damp proofing quotations in Coleraine in December 2024. 0% change from November 2024.
Requests for Damp proofing quotations in County Londonderry in December 2024. 0% change from November 2024.
Coleraine is actually a large town and civil parish nearby the mouth of the River Bann in County Londonderry, Northern Ireland. It is northwest of Belfast and east of Derry, each of which are joined by major roads and railway connections. There's the City of Derry Airport towards the west and Belfast International Airport on the south-east, both of which are relatively accessible from Coleraine.
Coleraine - BT52
Enquiry from: Sarah M
Start Date: Immediate
We need a survey of our house that we are selling. We seem to have developed a damp problem over the past 3 mths, that the house has been empty. Mainly downstairs but also on the chimney in the roof ...
Coleraine - BT52
Enquiry from: Mark K
Start Date: Immediate
Condensation & water running down the wall from the ceiling ( bungalow)
Coleraine - BT51
Enquiry from: Kurt L
Start Date: Immediate
Our house is a 19th century stone end of terrace that is a B2 listed building - which limits what we can do with windows and doors. In addition to usual condensation related damp around the windows,...
Coleraine - BT51
Enquiry from: William M
Start Date: Immediate
Cleaning and Gutter repairs, Damp Proofing
Coleraine - BT51
Enquiry from: Tom P
Start Date: Immediate
Damp on walls. Possibly requiring damp proofing
Coleraine - BT52
Enquiry from: Rory M
Start Date: Immediate
rising damp evident in internal solid walls of terrace house. damp course required are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type:...
Coleraine - BT51
Enquiry from: Mary H
Start Date: Immediate
Black mould in bedroom, damp.
Coleraine - BT52
Enquiry from: Adrian C
Start Date: Immediate
Damp and timber report from ca approved contractors
Coleraine - BT52
Enquiry from: Ettaline H
Start Date: Immediate
i need a check to see if there is hidden mould in my home. i've lived here for 4 years. i can't see anything nor can i smell it, but i seem to be getting allergic reactions that i've not had before. i...
Coleraine - BT52
Enquiry from: Devon F
Start Date: Immediate
Mold removed on the exterior walls
Coleraine - BT52
Enquiry from: Jade H
Start Date: Immediate
I have mould on my living room ceiling I tried to clean it but it's not working I'm concerned as I have a toddler and I'm pregnant and don't want us breathing it in need someone to come andassess the ...
Coleraine - BT52
Enquiry from: Kevin C
Start Date: Immediate
Mildew removal service
Coleraine - BT51
Enquiry from: Patrick B
Start Date: Immediate
I would like you to have a look at my property at 3forest rd Garvagh Bt 515ef, as there appears to be damp in one of the walls Regards Patrick Boylan How many rooms do you need damp proofing: 1-2 Ro...
Coleraine - BT52
Enquiry from: Kathie L
Start Date: Immediate
Black Mould throughout whole house after leak Need mould tested & professionally removed
Coleraine - BT51
Enquiry from: Gwen W
Start Date: Immediate
Are you the property owner: Owner of the property Property type: House Work to be carried out :Mould on Bathroom Ceiling and upper walls , ceiling of en suite Please call to appoint
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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!
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.
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.
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