Extensions such as garage conversions will often require supplementary damp proofing to be installed through the conversion, as the existing garage routinely has a single skin design for walls and floors, which was not built to be in accordance with building regulations for habitable rooms. This damp proofing will have to be added to walls and floors. In addition, the roof of the garage conversion will require water proofing. The damp proofing for the floor of the garage conversion will usually be achieved by utilising a damp proof membrane. This membrane is available 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 a few garages, the walls have already been damp proofed, but this might have to be updated as part of the conversion to be able to comply with current building regulations. The walls should be damp proofed to be able to safeguard the brickwork from rotting gradually as moisture sets in. This is performed by either making use of damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already in the garage. Damp proofing is a part of the building regulations that the garage conversion should comply with, and so is it necessary to ensure 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
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| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
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With a populace of nearly 140,000 Bolton is among the largest towns in Greater Manchester and formally one of the most productive cotton spinning centres in the world. Now it has a significant sporting position, with former Premier League outfit Bolton Wanderers and being the birthplace of WBA champion Amir Khan. For your upcoming household enhancement compare reputable companies in Bolton to get the best price available.
At Home Energy Save GB Ltd we are specialists in all fields of damp proofing and energy efficiency within the home. Whether your problem is loft condensation, rising damp, penetrating damp, black mould or simply heat loss then we can help. We sp...
Phone consultant was lovely and polite. Barry came out to review our home and was very professional, friendly and gave ...
Manchester - M20
Enquiry from: SY C
Start Date: Immediate
Survey and diagnosis, I have a damp patch on the chimney breast of one upstairs bedroom, mouldy patch in the corner of bathroom, damp on the side of a bay window in upstairs bedroom, peeling wallpaper
Warrington - WA3
Enquiry from: John D
Start Date: Immediate
Small downstairs toilet needs tanking
Bury - BL8
Enquiry from: Adam J
Start Date: Immediate
Damp proofing around the house I think ………… need a quote
Accrington - BB5
Enquiry from: Nusra A
Start Date: Immediate
Bedroom outside wall plaster needs taking off as it is crumbling off and is discoloured looks like,damp but not sure and then either re-boarding or re-plastering
Manchester - M27
Enquiry from: Catherine C
Start Date: Immediate
Check damp in kitchen walls - possible rising damp
Bury - BL0
Enquiry from: Carl R
Start Date: Immediate
We have a storage cellar that is damp that we would like sorting, and also some damp on the shop floor caused by an external pipe and some broken masonry. We have had a survey done which I can provide
Manchester - M44
Enquiry from: Mel H
Start Date: Immediate
Damp turned into black in my daughter’s. Bedroom in the corner of the ceiling demi detached house and is on the external wall
Manchester - M41
Enquiry from: James H
Start Date: Immediate
Floorboards at one end of living room have wet corners after rain - something under floor potentially letting water in / trapping condensation or similar. Would like an investigation and quote for fix
Manchester - M27
Enquiry from: Chun F
Start Date: Immediate
We have observed damp on the wall adjoining the exterior wall, as well as in the living room and porch areas. We would be grateful if you could provide us with a quotation for inspection and repair
Heywood - OL10
Enquiry from: Billy P
Start Date: Immediate
Our Scout Hut is damp, and the cellar flood sometimes. We have the opportunity to put a grant in to fix this. The deadline to put the grant application in is 19/09/2025 We have to submit a quote with
Wigan - WN5
Enquiry from: Derek P
Start Date: Immediate
My daughter bought a bungalow 18 months ago as has been experiencing a strong smell of mould ever since we have had a flat roof replaced 12 months ago thinking it was that but the smell is still there
Bury - BL0
Enquiry from: Edward B
Start Date: Immediate
We've just come home from some time away and have noticed three signs of damp: - bumpy external wall in downstairs toilet - wet carpet on bottom step of hallway - patch of white mould along the ski
Rochdale - OL11
Enquiry from: Muhammad I
Start Date: Immediate
There is damp issue in *** reception. (address removed) is the corner house so the wall where damp issue is coming is the roadside wall. If you guys provide free survey that will be better to come and
Manchester - M43
Enquiry from: Rachel H
Start Date: Immediate
Currently purchasing a house. survey showed damp. need quote for repairs
Rossendale - BB4
Enquiry from: Hannah M
Start Date: Immediate
Most issues have been sorted by fixing the roof, but we have some damp coming inside on external facing walls i could do with some advice on how to fix/ see what you could offer? i am generally in the
Manchester - M45
Enquiry from: Murtaza J
Start Date: Immediate
Damp survey. Selling home and want a survey to make sure all ok - please advise of cost for a report to provide to the buyer
Bolton - BL4
Enquiry from: Stephanie W
Start Date: Immediate
Can you please do a free quote for the landlord as there is damp in the house especially in the downstairs walls
Rossendale - BB4
Enquiry from: Jack T
Start Date: Immediate
We have damp problems in our top 2 bedrooms and would like a damp survey and then potentially the work carrying out. I believe you will give us a free damp survey and then a no obligation quote, if th
Leigh - WN7
Enquiry from: Lorin M
Start Date: Immediate
Good morning, I am not sure this is the right section for my need, I have kitchen extension at the back of the house (terraced house) made of single skin walls and have been advised that the ground
Leigh - WN7
Enquiry from: James F
Start Date: Immediate
I’m in the process of purchasing a property, and my survey has flagged potential damp, timber and steal beam issues, particularly affecting the subfloor. I’m looking for a specialist to assess the
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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.
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.
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!
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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