Extensions including garage conversions will usually require extra damp proofing to be installed through the conversion, as the pre-existing garage will often have a single skin design for walls and floors, which was not designed to comply with building regulations for habitable rooms. This damp proofing will need to be added to walls and floors. Furthermore, the roofing of the garage conversion will need water proofing. The damp proofing for the floor of the garage conversion will usually be performed by utilising a damp proof membrane. This membrane is available 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 may have to be updated as part of the conversion to be able to comply with current building regulations. The walls will need to be damp proofed to be able to protect the brickwork from rotting slowly as moisture sets in. This is 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 will need to comply with, therefore is it necessary to make sure that your garage conversion employs 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
| 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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The Hampshire city of Winchester comes with a population greater than 40,000 and it is a former capital of England. Winchester is home to one of the largest cathedrals in Europe and its traditional and architectural value has evolved it into one of the most expensive, yet desirable areas of the country. Make sure your property or home holds this value as well as makes you a profit by making use of our vetted specialists to complete home improvement work.
Hello and welcome to my page. We are a Family run building business with over 20 years in the building industry. We offer a verity of services this includes: Damp proofing specialists, Bricklaying Landscaping Groundwork’s/ drainage Roof repairs Poi...
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Still not had the quote sent to me :-(
Southampton - SO16
Enquiry from: Jacek A
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I would like to check if the bathroom floor is dry—or if it needs drying—before the bathtub installation work begins. I see that you handle this free of charge or proceed with the drying process y
Basingstoke - RG22
Enquiry from: Amarjit G
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Initial free survey on a small damp and mould problem near back door of kitchen
Romsey - SO51
Enquiry from: Wayne R
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Southampton - SO32
Enquiry from: Annette B
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We have flaking walls near chimney breast of our old house recently moved in and looking to make good. Have issues in other rooms too with a musty smell
Eastleigh - SO50
Enquiry from: Rebecca W
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I am looking to purchase this property but have been advised by a Building Surveyor that it has damp in the party wall and three external walls. I would need the owners permission to enable access. It
Stockbridge - SO20
Enquiry from: Julian K
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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
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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.
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.
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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