Extensions including garage conversions will often require supplementary damp proofing to be added as part of conversion, as the pre-existing garage routinely has a single skin design for walls and floors, which was not manufactured to comply with building regulations for habitable rooms. This damp proofing will have to be added to walls and floors. Additionally, the roof of the garage conversion will require water proofing. The damp proofing of the floor of the garage conversion will in most cases be performed by employing 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 some garages, the walls have been damp proofed, but this may have to be updated as part of the conversion in order 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 can be accomplished by either using damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls 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 ensure 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 South East in December 2024
Requests for Damp proofing quotations in South East in December 2024. 0% change from November 2024.
Requests for Damp proofing quotations in United Kingdom in December 2024. 0% change from November 2024.
Dartford - DA1
Enquiry from: Moji L
Start Date: Immediate
There was a water leak from the first floor to the neighbours flat. It causes damp on the ceiling and on the wall. The survey has been done and just looking for someone to do the work.
Uckfield - TN22
Enquiry from: Danny P
Start Date: Immediate
Basically our house had wall cavity insolation sometime ago. Since then the upstairs rooms have all suffered from some mold Albeit not a lot but i do clean it away. In my daughters room she has also...
Stockbridge - SO20
Enquiry from: Julian K
Start Date: Immediate
I am enquiring on behalf of my son who lives at the above address, having recently purchased the property. It is a 3 bed semi, ex local authority built in the 1930s using slate as the DPC. It appears ...
Milton Keynes - MK4
Enquiry from: Shailee S
Start Date: Immediate
Damp on the walls. I would like to get the problem investigated so to identify the problem and fix the same
Woking - GU22
Enquiry from: Kim M
Start Date: Immediate
Survey for damp, cause and quote for remedial works
Bicester - OX27
Enquiry from: Allie T
Start Date: Immediate
replace damp boards and advice on cause of damp
Redhill - RH1
Enquiry from: Toby R
Start Date: Immediate
Evidence of damp below bay window,
High Wycombe - HP12
Enquiry from: Armaghan J
Start Date: Immediate
We have some damp patches and need someone to come and check the issue and provide a solution
Sandown - PO36
Enquiry from: Btyn D
Start Date: Immediate
We would like someone to asses damp in the walls of our downstairs toilet, part of our porch extension to the house. Also the outside wall of our house, next to the porch extension.
Maidstone - ME15
Enquiry from: Amy A
Start Date: Immediate
The house needs to be assessed there is problems with damp and condensation in bedrooms
Milton Keynes - MK14
Enquiry from: Anand A
Start Date: Immediate
Damp and condensation survey needed with root cause report.
Woking - GU22
Enquiry from: Brenda G
Start Date: Immediate
I have damp coming from the bay window in bedroom, it’s going into the wardrobe also. I live in a bungalow.
Milton Keynes - MK17
Enquiry from: Izabella D
Start Date: Immediate
Damp has been identified on inside of chimney breast in front room and in kitchen near the sink. We would like a quote asap for the work as we are selling the house
High Wycombe - HP15
Enquiry from: Scott L
Start Date: Immediate
Damp walls in external facing downstairs living area. Looks to have had injection treatment in the past but also has cracked tender on outer facing side of wall.
Woking - GU21
Enquiry from: Hiren S
Start Date: Immediate
Rising Damp in multiple rooms
Polegate - BN26
Enquiry from: Kevin M
Start Date: Immediate
Damp survey, and possible remedial work to outside wall to bungalow. Damp and mould showing in various areas.
Worthing - BN14
Enquiry from: Warwick D
Start Date: Immediate
We have a bungalow and we are having a damp problem in one of our bedrooms The black spots are appealing on our ceiling along the cornices. I have tried to seal the area without success so would ap...
Aylesford - ME20
Enquiry from: KH H
Start Date: Immediate
Hi there, I have a small area of damp in our conservatory on the joining wall to the house. The conservatory is half brick built with no heating and has a tumble dryer. We are selling the property and...
High Wycombe - HP13
Enquiry from: Jay G
Start Date: Immediate
External wall has damp. *** floor flat
West Byfleet - KT14
Enquiry from: Holly T
Start Date: Immediate
Hello, I have wet patches on some walls along with patches of black mould in several places, please could somebody come and look at it and advise what work is needed? Thank you
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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!
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.
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.
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