Extensions such as garage conversions will usually require supplementary damp proofing to be installed through the conversion, as the pre-existing garage routinely has a single skin design for walls and floors, which was not built to be in accordance with building regulations for habitable rooms. This damp proofing will need to be put into 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 often be achieved by employing 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 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 improved as part of the conversion to be able to adhere to current building regulations. The walls should be damp proofed to be able to protect the brickwork from rotting gradually 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 that are already 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 important to make sure 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
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| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in South West in February 2025
Requests for Damp proofing quotations in South West in February 2025. 0% change from January 2025.
Requests for Damp proofing quotations in United Kingdom in February 2025. 0% change from January 2025.
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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Blandford Forum - DT11
Enquiry from: Simon M
Start Date: Immediate
looking for a quote for rising damp treatment on interior walls. is this something you could assist with? thank you are you the property owner: owner of the property how many rooms do you need damp p...
Swindon - SN4
Enquiry from: Mark H
Start Date: Immediate
Survey damp issues in small flat.
Ilfracombe, Woolacombe - EX34
Enquiry from: Eleanor H
Start Date: Immediate
Damp survey done in Bathroom that is showing signs of damp - paint falling off, minerals coming out of plaster.
St. Austell - PL26
Enquiry from: Elizabeth B
Start Date: Immediate
Hi we have a tenant at this address with bad damp issues and wondered are you available to take a look and quote and works need doing. It could be that they are not using heating so more condensation ...
Weymouth - DT4
Enquiry from: J
Start Date: Immediate
Rising damp and other damp issues need a qu0te
Westbury - BA13
Enquiry from: Vicky C
Start Date: Immediate
There are a couple of areas that need looking at. There is some damp under my kitchen floor and some around the chimney breast in my living room. Thanks
Newton Abbot - TQ13
Enquiry from: Rupert M
Start Date: Immediate
A two metre section of wall just above ground level shows signs of damp (discolouration, damp to touch). Have already had damp insulation removed but problem persists and it looks as though damp proo...
Tewkesbury - GL20
Enquiry from: Steve C
Start Date: Immediate
we have an issue in our downstairs toilet, where the paint is bubbling up and we also have a crack in the wall and some brown stains. i have sanded it all down, applied some damp proofing paint but af...
Teignmouth - TQ14
Enquiry from: Abi W
Start Date: Immediate
Damp/condensation control to lower ground floor room
Bournemouth - BH11
Enquiry from: Nicky D
Start Date: Immediate
have water coming up through floor
Plymouth - PL4
Enquiry from: Nicky F
Start Date: Immediate
we have several areas on walls within the building that look damp and would like to have a quote for repairs. thank you are you the property owner: owner of the property how many rooms do you need da...
Frome - BA11
Enquiry from: Elissa S
Start Date: Immediate
We recently received our building survey report back from Connells Survey and Valuations, regarding a property. The report has raised a few areas of concern, which we would like to have checked ou...
Plymouth - PL2
Enquiry from: Kevin S
Start Date: Immediate
I believe I've got penetrating damp in my external walls.
Plymouth - PL1
Enquiry from: Robby R
Start Date: Immediate
damp in bedrooms at rear of house. plaster blown on wall on ground floor. are you the property owner: owner of the property how many rooms do you need damp proofing: 3-4 rooms property type: terrace ...
Crediton - EX17
Enquiry from: Peter F
Start Date: Immediate
Damp issues both in upstairs ceiling and downstairs bottom of wall in this stone and cob barn conversion.
Radstock - BA3
Enquiry from: Jess B
Start Date: Immediate
We have a damp wall in a residents bathroom. We’ve have had a plumber come out as we believe it might have been pipe work but it’s not. We aren’t sure what the issue is, but believe it could ...
Weymouth - DT4
Enquiry from: Dana C
Start Date: Immediate
we are purchasing this property and the surveyor has reported high moisture readings to the ground floor walls to the front and rear of the original part of the property. the source of moisture is ris...
Newquay - TR7
Enquiry from: Grzegorz G
Start Date: Immediate
Damp in the walls and wet walls
Newton Abbot - TQ12
Enquiry from: Paul H
Start Date: Immediate
Advise and damp proof survey
Plymouth - PL3
Enquiry from: Mark S
Start Date: Immediate
We have penetrating damp on wall in front room. Part of wall has already been tanked. We want to find out cause of damp issue and find best action to cure damp issue
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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.
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.
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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