Extensions such as garage conversions will usually require additional damp proofing to be added as part of conversion, as the pre-existing garage typically has a single skin design for walls and floors, which was not built to conform to building regulations for habitable rooms. This damp proofing will need to be put into walls and floors. Moreover, the roofing of the garage conversion will require water proofing. The damp proofing for the floor of the garage conversion will in most cases 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 put 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 might have to be improved as part of the conversion to be able to meet current building regulations. The walls should be damp proofed to be able to protect the brickwork from rotting slowly as moisture sets in. This is performed by either utilising 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.
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
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| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
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£475
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| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Searches that showed one of our pages for West Glamorgan, all services
Bridgend - CF32
Enquiry from: Jennifer D
Start Date: Immediate
The ground floor has been reported as very damp in the property survey report. I would like to understand the condition of the floors to know if remedial works are needed
Port Talbot - SA12
Enquiry from: Arnel Z
Start Date: Immediate
Damp is evidence on the bottom stairs, next to the inside wall
Port Talbot - SA12
Enquiry from: GARY P
Start Date: Immediate
I have had a survey of the premises done and it states that there is damp in the main bedroom. i am looking for someone to attend at the address and check for me, and to rectify the problem if require
Property: detached
Bridgend - CF32
Enquiry from: Stuart G
Start Date: Immediate
Downstairs outside walls at back have damp. Probably caused by the rendering down to floor level with no gap
Neath - SA10
Enquiry from: Angelo M
Start Date: Immediate
Bridgend - CF33
Enquiry from: Zbigniew P
Start Date: Immediate
Need damp proofing walls and get rid of the dumpness in a house
Llanelli - SA14
Enquiry from: Yvette W
Start Date: Immediate
Damp survey damp in side wall in living room and bedroom and kitchen
Swansea - SA4
Enquiry from: Edward S
Start Date: Immediate
A quote on rectifying damp / mould in our bathroom, please ?
Bridgend - CF33
Enquiry from: Susan C
Start Date: Immediate
I would like a free survey and quote to be carried out to identify the cause of damp
Aberdare - CF44
Enquiry from: Linda J
Start Date: Immediate
Damproof course in utility room
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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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