Extensions including garage conversions will typically require additional damp proofing to be added during the conversion, as the pre-existing garage routinely has a single skin design for walls and floors, which was not designed to comply with building regulations for habitable rooms. This damp proofing should be put into walls and floors. Additionally, the roofing of the garage conversion will need water proofing. The damp proofing of the floor of the garage conversion will most likely be performed by by using 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 if the floor will be a solid or a floating floor. In some garages, the walls have already been damp proofed, but this might need to be updated as part of the conversion in order to comply with current building regulations. The walls will need to be damp proofed to be able to protect the brickwork from rotting gradually as moisture sets in. This can be performed 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 a part of the building regulations that the garage conversion should adhere to, and so is it important to ensure that your garage conversion makes use of 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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| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
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| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in Oxfordshire in October 2024
Requests for Damp proofing quotations in Oxfordshire in October 2024. 0% change from September 2024.
Requests for Damp proofing quotations in South East in October 2024. 0% change from September 2024.
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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The Hive Efficiency Group supply and install a range of products to both residential and commercial properties, designed to assist in making them more energy efficient and maintenance free for many years to come. From thermally effiecient wall c...
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Banbury - OX15
Enquiry from: Carrie L
Start Date: Immediate
Small house damp proof of the house
Henley-on-Thames - RG9
Enquiry from: Jonathan W
Start Date: Immediate
Damp appearing in an outside wall, and in a basement used for storage.
Kidlington - OX5
Enquiry from: David R
Start Date: Immediate
Damp on internal wall ground floor and also external bedroom wall
Wantage - OX12
Enquiry from: Emma M
Start Date: Immediate
Damp survey in kitchen. A worktop on the underside has goon mouldy that is next to an outside wall. Please would you phone me so I can ask questions and answer yours. Thank you.
Abingdon - OX14
Enquiry from: Nishal P
Start Date: Immediate
I am in the process of purchasing a property. The surveyor brought up the issue of some damp in the external wall of the front porch. I would be interested in a damp survey to confirm this and the bes...
Abingdon - OX14
Enquiry from: Steve T
Start Date: Immediate
We moved house last November. Our survey showed damp levels only in the walls near each of our two external doors. We cannot see why this would be. There are no interior signs of damp. So we are inter...
Banbury - OX16
Enquiry from: Ben L
Start Date: Immediate
We are having reoccurring damp issues in our house and are not sure of the best course of action.
Banbury - OX16
Enquiry from: Julie D
Start Date: Immediate
Dear Sirs, We manage a flat block in Banbury and we have been advised that there is a rising damp issue following a leak detection survey by the insurer. Please can you confirm if you would be a...
Kidlington - OX5
Enquiry from: Adi H
Start Date: Immediate
External wall damp surveys Must be member of CSRT
Didcot - OX11
Enquiry from: Emily R
Start Date: Immediate
i have damp at the rear wall of the property and i think there might be some damp in the lounge walls are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 ro...
Abingdon - OX14
Enquiry from: Jo G
Start Date: Immediate
Rising damp treatment preferably by injection? There are 2 rooms on the ground floor and they both have damp
Banbury - OX16
Enquiry from: Tania B
Start Date: Immediate
unsure, survey and cost of any work required. are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: other please call to appoint
Abingdon - OX14
Enquiry from: Linda W
Start Date: Immediate
Have had a survey on mobile home and cause of damp is penetrative Advised I need all exterior sealed I am a night worker so please email
Abingdon - OX14
Enquiry from: Linda W
Start Date: Immediate
Damp room in mobile home Seems to be the floor is the main.problem
Bicester - OX25
Enquiry from: Stuart M
Start Date: Immediate
Old cottage with soil banking up to just below lounge window level. Damp along entire wall leading to damage of freshly decorated paper.
Witney - OX29
Enquiry from: Stewart T
Start Date: Immediate
Damp showing on staircase walls - need a quote for survey and remedial treatment
Witney - OX28
Enquiry from: Alice M
Start Date: Immediate
investigation of damp on the ground floor and the chimney. are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: terrace please call to ...
Banbury - OX17
Enquiry from: Steve B
Start Date: Immediate
we have damp in our property and need someone to advise us what we need to do to sort the problem out are you the property owner: owner of the property property type: detached how many rooms do you n...
Faringdon - SN7
Enquiry from: Sally D
Start Date: Immediate
Rising damp in various parts of the house
Banbury - OX17
Enquiry from: Steve B
Start Date: Immediate
we have damp in our property and need someone to advise us what we need to do to sort the problem out are you the property owner: owner of the property property type: detached how many rooms do you n...
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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.
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!
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.
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