Extensions including garage conversions will typically require additional damp proofing to be installed during the conversion, as the pre-existing garage typically has a single skin design for walls and floors, which was not designed to be in accordance with 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 of the floor of the garage conversion will most likely be achieved by employing a damp proof membrane. This membrane will come in either solid or liquid form. The damp proof membrane will be put down either on top of the 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 been damp proofed, but this might have to be updated as part of the conversion in order to meet current building regulations. The walls will need to be damp proofed in order to safeguard the brickwork from rotting slowly as moisture sets in. This can be performed by either employing 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 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
| 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 |
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Epsom is a town which includes a market in the borough of Epsom and also Ewell within Surrey, England. Some parts of Epsom are in the Borough of Reigate and Banstead and Mole Valley District.
Mark responded promptly to my enquiry and made an appointment to come and look at the issue in question very soon. He ar...
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Guildford - GU4
Enquiry from: Jay M
Start Date: Immediate
Brick wall crack fixing, damp proof protection. Conservatory door fixing due to the clay soil movement
Caterham, Whyteleafe - CR3
Enquiry from: Nisia S
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Small storage cupboard within a let business property damp proofed
London - SW16
Enquiry from: Jigisha S
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Hi dear, We having damp problem in our outbuilding in the garden.Skirting board shows sign of it as broken.Do you offer free visit for insepection and survey then please do contact me
Beckenham - BR3
Enquiry from: Hakan H
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Looking for a carbide testing for the screed to be done on 15th or 16th of September in two rooms
Leatherhead - KT22
Enquiry from: Arianna A
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Quote for a 7.6 sqm (82 sq ft) cellar
London - SW16
Enquiry from: Joel J
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Rising damp. removing existing plaster and injecting damp proof chemicals and re plastering and painting of wall at front window bay
Property: semi detached
London - SW20
Enquiry from: Angela S
Start Date: Immediate
We have discovered an issue with property and would like a visit/inspection to identify the cause
Property: terrace
London - W3
Enquiry from: Chris R
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Front of house approximately 6M fix the damp proofing externally. Red brick 1920s terraced proofing
Ashford - TW15
Enquiry from: Krishna A
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To check whether the wall is damp or not
London - SE27
Enquiry from: William P
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There is damp in my conservatory which was built about 10 years ago. The damp has affected one wall and the shed ceiling and only appears after prolonged rain
London - SW7
Enquiry from: Harriet S
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Tanking one bedroom wall, a hall way wall and a utility room wall
Mitcham - CR4
Enquiry from: Ope O
Start Date: Immediate
I want to Waterproof the flat concrete roof and damp proof the end of terrace wall
Beckenham - BR3
Enquiry from: Pippa S
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I have a damp patch on the wall in my kitchen
London - SW16
Enquiry from: Aamir R
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My bedroom roof got damp marks. Need to fix that
London - SW16
Enquiry from: Cam I
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Damp proofing enquiry
Epsom - KT19
Enquiry from: Peter M
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We have a small amount of damp rising on a small wall in our conservatory - all the walls were treated with a waterproof membrane and re plaster boarded last year but this small wall was not done
Property: semi detached
South Croydon - CR2
Enquiry from: Natalie R
Start Date: Immediate
To locate source of damp from weather in a wall
Epsom - KT17
Enquiry from: Carmel L
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Have some damp around the chimney breast in my dining room
Epsom - KT18
Enquiry from: James G
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We are experiencing damp in one room and by windows in two other rooms
Epsom - KT19
Enquiry from: Peter M
Start Date: Immediate
We have a damp proof issue on an exterior wall - we will require the plaster taking off, a waterproof membrane applied and then replastered and painted - it is a (address removed)
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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.
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.
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