Extensions including garage conversions will often require supplementary 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 manufactured to be in accordance with 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 most likely be achieved by utilising a damp proof membrane. This membrane can 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 if the floor will be a solid or a floating floor. In some garages, the walls will have already been damp proofed, but this may need to be updated as part of the conversion in order to adhere to current building regulations. The walls should be damp proofed in order to protect the brickwork from rotting gradually as moisture sets in. This can be performed by either applying damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already in the garage. Damp proofing is an important part of the building regulations that the garage conversion should comply with, therefore is it vital to make sure 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 |
£2600
£1950
£1300
£650
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| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in East Midlands in January 2025
Requests for Damp proofing quotations in East Midlands in January 2025. 0% change from December 2024.
Requests for Damp proofing quotations in United Kingdom in January 2025. 0% change from December 2024.
We are a company that specialises in Damp Proofing & Insulation. We have a 100% success rate in resolving damp issues connected to any form of damp. We can also offer the latest solutions to condensation. We offer a FREE, NO OBLIGATION damp ...
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At Home Energy Save GB Ltd we are specialists in all fields of damp proofing and energy efficiency within the home. Whether your problem is loft condensation, rising damp, penetrating damp, black mould or simply heat loss then we can help. We sp...
Phone consultant was lovely and polite. Barry came out to review our home and was very professional, friendly and gave ...
Welcome to Heatseal Insulation Ltd We are National Loft insulation and Damp Proofing specialists covering most of the UK. Our objective is to provide an outstanding & reliable service to all our customers offering the latest technology to the Dome...
Good advice, clear understanding of the problem and solution
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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Melton Mowbray - LE14
Enquiry from: Nigel R
Start Date: Immediate
Rising damp in porch extension in 1790 cottage
Leicester - LE4
Enquiry from: Mukun S
Start Date: Immediate
Treating damp in one of the rooms in a Bungalow.
Tring - HP23
Enquiry from: Anna P
Start Date: Immediate
We are in the process of purchasing a property and would like to arrange for a PCA-registered damp and timber specialist to conduct an inspection before exchanging contracts. Our survey has highlig...
Nottingham - NG12
Enquiry from: David B
Start Date: Immediate
Corner of lounge showing signs of mould. Chimney breast showing damp patches? Wall inside porch seems damp.
Lutterworth - LE17
Enquiry from: Christine H
Start Date: Immediate
Inspection of bedroom wall where black mold is appearing and advice on what should be done
Wigston - LE18
Enquiry from: Naeem A
Start Date: Immediate
find root cause pebbling dashing are you the property owner: owner of the property how many rooms do you need damp proofing: 3-4 rooms property type: other please call to appoint
Spalding - PE11
Enquiry from: Keith F
Start Date: Immediate
Damp in lounge and dining room. Seems to be coming in from the edges. Need a quote for repair
Leicester - LE4
Enquiry from: Ash S
Start Date: Immediate
I can whatsapp you pics. Damp and repainting and repoint bricks
Wigston - LE18
Enquiry from: Gemma T
Start Date: Immediate
Damp survey following recent purchase of property
Nottingham - NG8
Enquiry from: Matthew S
Start Date: Immediate
Please could I get a quote to carry out a damp survey.
Berkhamsted - HP4
Enquiry from: Nick W
Start Date: Immediate
We have some damage to 1 wall which is caused by damp - most likely due to external problems with roof and wall. We would appreciate it if you could come to provide an estimate for repair and any fur...
Nottingham - NG16
Enquiry from: Anna D
Start Date: Immediate
Assessment of damp issue and proposed remedies required
Lutterworth - LE17
Enquiry from: Emma M
Start Date: Immediate
Survey of potential damp problems in various areas of old property
Brackley - NN13
Enquiry from: Tim D
Start Date: Immediate
bedroom ceiling wet along two walls. looked in loft slightly wet insulation wool. edges difficult to reach but seems dry so can’t work out the problem of why ceiling is so wet? are you the property...
Nottingham - NG10
Enquiry from: Kristy G
Start Date: Immediate
I have damp in the upper corner of a bedroom on an external wall which is growing quickly, the roof has been checked and is dry, I also have damp on the wall between the bathroom and landing which I f...
Nottingham, Sutton-in-Ashfield - NG17
Enquiry from: Fiona C
Start Date: Immediate
Have recently moved to the bungalow and can smell damp in one of the bedrooms need someone to come and have a look
Grantham - NG31
Enquiry from: Jack G
Start Date: Immediate
identify issues causing the damp to the front downstairs room and front upstairs room. Issue a report of findings and solution
Melton Mowbray - LE14
Enquiry from: Jason W
Start Date: Immediate
I have peeling plaster on the wall of the the bay window from the skirting board to a height of about 50cm which I suspect is rising damp. I suspect the cause (but don’t know) is that the ground dir...
Newark - NG22
Enquiry from: Moira W
Start Date: Immediate
an outside facing wall has got rising damp which appears to be spreading. there has been work done previously by the coal board but doesn't seem to have done it properly. are you the property owner: o...
Wellingborough - NN8
Enquiry from: Atiq M
Start Date: Immediate
box room had been painted with anti mold paint a couple of times but the mold keeps coming up. Please advise if you can resolve this issue; and when you can visit the home to have a look.
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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.
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.
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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