Extensions including garage conversions will usually require extra damp proofing to be installed as part of conversion, as the pre-existing garage typically has 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 should be added to walls and floors. Additionally, the roof of the garage conversion will require water proofing. The damp proofing of the floor of the garage conversion will in most cases be achieved 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 whether the floor will be a solid or a floating floor. In a few garages, the walls will have already been damp proofed, but this may have to be improved 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 can be done by either employing damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already present in the garage. Damp proofing is an integral part of the building regulations that the garage conversion will need to adhere to, and so is it vital to ensure 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 |
£3000
£2250
£1500
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| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in Bedfordshire in October 2024
Requests for Damp proofing quotations in Bedfordshire in October 2024. 0% change from September 2024.
Requests for Damp proofing quotations in East Of England in October 2024. 0% change from September 2024.
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...
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Bedford - MK42
Enquiry from: STEVEN D
Start Date: Immediate
THE PROPERTY IS A 3 BED DETATCHED HOUSE LOCATED IN KEMPSTON, ABOUT 2-3 YEARS AGO I HAD A LOCAL ROOFING COMPANY TO REMOVE OLD TILES RE-FELT AND BATTEN AND NEW ROOF TILES AS WELL AS NEW FACIA AND GUTTER...
Bedford - MK45
Enquiry from: Paul C
Start Date: Immediate
We are buying this property and a building surveyor has noticed a couple of walls being a bit high in moisture with a meter, so would like a damp survey just on the ground floor
Dunstable - LU5
Enquiry from: Garry W
Start Date: Immediate
Mould in bedroom. Need to identify the cause
Biggleswade - SG18
Enquiry from: Martin G
Start Date: Immediate
Rising damp Water marks on 2 interior kitchen walls.
Leighton Buzzard - LU7
Enquiry from: Hayley K
Start Date: Immediate
We have some damp patches on internal walls and would like a survey and investigation to hopefully find and fix the issue
Sandy - SG19
Enquiry from: Aaron M
Start Date: Immediate
Timber and damp survey for mortgage required. I am the seller and having spray foam insulation removed from the property the week prior and buyers lender requires such a survey. Please can I get a...
Bedford - MK42
Enquiry from: Steve P
Start Date: Immediate
Damp on two walls on the ground and first floor. Solid 9" walls.
Bedford - MK41
Enquiry from: Mohi U
Start Date: Immediate
Damp survey, to check what kind of damp what causing it
Bedford - MK42
Enquiry from: John B
Start Date: Immediate
Damp in kitchen and living room
Dunstable - LU6
Enquiry from: Ashfa K
Start Date: Immediate
determine where the damp is coming from and suggestion on how to treat, also have green mold on skirting boards which i am having to wipe in every couple of weeks
Biggleswade - SG18
Enquiry from: Ron T
Start Date: Immediate
investigation and quote for damp in a listed building. are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: semi detached please call t...
Henlow - SG16
Enquiry from: Carole R
Start Date: Immediate
ive been told i have rising damp is this something you treat are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: semi detached please ...
Henlow - SG16
Enquiry from: Carole R
Start Date: Immediate
ive been told i have rising damp is this something you treat are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: semi detached please ...
Henlow - SG16
Enquiry from: Carole R
Start Date: Immediate
ive been told i have rising damp is this something you treat
Luton - LU2
Enquiry from: B
Start Date: Immediate
Condensation in the loft or possible leak
Dunstable - LU6
Enquiry from: Sally G
Start Date: Immediate
Damp appearing inside and outside around outside door wet/porch
Bedford - MK45
Enquiry from: Emma S
Start Date: Immediate
we think we may have damp in our living room and kitchen as the paint work is peeling off the walls are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 roo...
Dunstable - LU6
Enquiry from: Gwen P
Start Date: Immediate
, i am looking for a quote to clear the basement of mould and damp. basically clean off the mould and paint so i can paint with chalk paint to allow the walls to breath. i live in dunstable. kind rega...
Arlesey - SG15
Enquiry from: Antoine P
Start Date: Immediate
i need damp proof injection on 18 meters. are you the property owner: owner of the property how many rooms do you need damp proofing: 3-4 rooms property type: semi detached please call to appoint
Luton - LU1
Enquiry from: Raphael F
Start Date: Immediate
a mold specialist to come in and assess the work and carry it out
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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.
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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