Extensions such as garage conversions will usually require additional damp proofing to be added during the conversion, as the existing garage normally has a single skin design for walls and floors, which was not designed to conform to building regulations for habitable rooms. This damp proofing will need to be added to 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 often be performed by utilising 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, underneath 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 have been damp proofed, but this might need to be updated as part of the conversion in order to meet current building regulations. The walls should be damp proofed in order to protect the brickwork from rotting gradually as moisture sets in. This is done by either implementing 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 should adhere to, and so is it vital to make sure that your garage conversion employs 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 |
£3000
£2250
£1500
£750
£0
| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in Western Midlands in April 2025
Requests for Damp proofing quotations in Western Midlands in April 2025. 0% change from March 2025.
Requests for Damp proofing quotations in United Kingdom in April 2025. 0% change from March 2025.
Malvern - WR14
Enquiry from: Mo B
Start Date: Immediate
Quote required for tanking of a small cellar and recommendations for damp proofing of outside brick building. Only available for quotation during week of 11-17 May as I have not yet moved into the ho...
Ledbury - HR8
Enquiry from: Roz J
Start Date: Immediate
I am within 3 weeks of moving, the buyer of this bungalow has now requested that a very small area of the converted garage be checked as the surveyor suggests it could have some damp. The said room h...
Coventry - CV1
Enquiry from: Carlos P
Start Date: Immediate
I need a quote for damp and wood rot in a house. There are high levels of damp in walls and floors in a few places, along with rotting floorboards. Despite having a previous damp treatment, a survey i...
Birmingham - B24
Enquiry from: Zafeer H
Start Date: Immediate
Damp survey and remedial work
Rugby - CV21
Enquiry from: Antony P
Start Date: Immediate
Suggestion from the surveyor "To rectify rising damp, a chemical can be injected into your affected walls, which will create a barrier to prevent more ground moisture from being soaked up. To do thi...
Smethwick - B66
Enquiry from: Keran B
Start Date: Immediate
I’m in Bearwood. Just moved in and had a damp survey done and under the stairs loo in two bed terrace needs damp proofing and there is penetrating damp. I’m hoping you can give me a quote. I’d l...
Stafford - ST19
Enquiry from: Marie M
Start Date: Immediate
to get rid of black mould in the bathroom are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: detached please call to appoint
Leamington Spa - CV31
Enquiry from: Kiren D
Start Date: Immediate
Damp in small bedroom which is causing a stale smell - also appears on ceiling in other rooms from time to time
Rugby - CV21
Enquiry from: Penny W
Start Date: Immediate
Full damp and timber report for mortgage purposes with quote for remedial work.
Worcester - WR2
Enquiry from: Belinda A
Start Date: Immediate
damp issues, to front room inspection and quote required there is a cellar to the property are you the property owner: relative of owner how many rooms do you need damp proofing: 1-2 rooms property ty...
Solihull - B91
Enquiry from: Sharon J
Start Date: Immediate
we think we have a rising damp issue. The building is Georgian and has been converted into flats w, as Freeholders of the building would like an inspection and some advice if possible. The Hillfield...
Birmingham - B11
Enquiry from: Javed K
Start Date: Immediate
Damp in bedrooms and kitchen
Warwick - CV35
Enquiry from: Michael H
Start Date: Immediate
Integral garage, starting to get damp floor and brick work
Oswestry - SY11
Enquiry from: JULIE K
Start Date: Immediate
damp survey of house - walls. are you the property owner: owner of the property
Worcester - WR5
Enquiry from: Sahil A
Start Date: Immediate
damp proofing in basement room. water ingress from concrete floor in parts of the room and it’s slowly rising. are you the property owner: owner of the property how many rooms do you need damp proof...
Burton-on-Trent - DE14
Enquiry from: Biar K
Start Date: Immediate
Need damp proofing survey to be done
Worcester - WR5
Enquiry from: Rebecca H
Start Date: Immediate
I believe the masonry has some damage / brickwork has worn over time and causing inside damp to the interior walls of our living room. Eager to get resolved asap as paintwork is damaged
Ludlow - SY8
Enquiry from: Maxine W
Start Date: Immediate
Hi, do you carry out inspections at home with a view to quoting for damp solutions? We have an issue in our living room and we’re not sure if the cause and solution.
Oswestry - SY11
Enquiry from: Mark P
Start Date: Immediate
We have rising damp & we are currently requesting quotes to get the most creative rate before instruction of work.
Coventry Southern Satellite Villages & Kenilworth - CV8
Enquiry from: Alex R
Start Date: Immediate
Damp appearing in Spare room
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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.
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.
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!
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