Extensions such as garage conversions will often require additional damp proofing to be added during the conversion, as the pre-existing garage will often have a single skin design for walls and floors, which was not designed to be in accordance with building regulations for habitable rooms. This damp proofing will need to be put into 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 often be achieved by employing a damp proof membrane. This membrane will come in either solid or liquid form. The damp proof membrane will be placed 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 is done by either making use of 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 important part of the building regulations that the garage conversion should adhere to, and so 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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| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
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£2250
£1500
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£0
| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in Gloucestershire in October 2024
Requests for Damp proofing quotations in Gloucestershire in October 2024. 0% change from September 2024.
Requests for Damp proofing quotations in South West in October 2024. 0% change from September 2024.
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...
all good
Moreton-in-Marsh - GL56
Enquiry from: Andrea G
Start Date: Immediate
Survey of the property on ground floor this week and works to be undertaken ASAP
Wotton-under-Edge - GL12
Enquiry from: Carole W
Start Date: Immediate
Water penetration in 2 areas upstairs. We have tried to resolve it our selves but unsuccessful. Also need a damp proof course put in downstairs
Cirencester, Fairford, Lechlade - GL7
Enquiry from: Victoria P
Start Date: Immediate
Damp course in two rooms and by a fireplace
Stroud - GL6
Enquiry from: Katharine B
Start Date: Immediate
Excavate / cut away perimeter floor to be treated . Supply/ fix cavity drain plastic lining system . Plaster and skim . The length of the wall is 5.08 m and approximately 2.5 m high .
Cirencester, Fairford, Lechlade - GL7
Enquiry from: Claire B
Start Date: Immediate
We would like a damp survey
Gloucester - GL1
Enquiry from: Daniel S
Start Date: Immediate
We have had a damp report carried out on a rental property which has revealed damp proofing/tanking is required in the bathroom of a rental property we own. The tenant is due to vacate the first week ...
Cirencester, Fairford, Lechlade - GL7
Enquiry from: Rachel P
Start Date: Immediate
Hi there I am a PA for an owner of an 18th Centry barn in Ewen (GL7) and he has a tunnel that connectors his properties that has some damp issues and we are looking for someone to come and look at...
Drybrook, Longhope, Lydbrook, Mitcheldean, Ruardean - GL17
Enquiry from: Jane M
Start Date: Immediate
I have what I think is rising damp in the lounge on at least 2 wall. It is a detached stone built construction built in1800s.
Coleford - GL16
Enquiry from: Roger M
Start Date: Immediate
To look at solutions for damp around the door and around the house
Moreton-in-Marsh - GL56
Enquiry from: Kate Z
Start Date: Immediate
damproofing ground floor in parts property type: commercial how many rooms do you need damp proofing: 5+ rooms how many rooms do you need damp proofing: property type: please call to appoint
Moreton-in-Marsh - GL56
Enquiry from: Georgia M
Start Date: Immediate
I'm purchasing the above property and having had a survey completed they have found evidence of rising damp in two rooms (bathroom and kitchen), as well as damp within the floors of these rooms (where...
Cirencester, Fairford, Lechlade - GL7
Enquiry from: Peter M
Start Date: Immediate
We have rising damp in a modern wall extension to an old wall. Plaster is badly damaged and will need making good. The affected area is approx 2m long on an external wall.There is also a small area in...
Cirencester, Fairford, Lechlade - GL7
Enquiry from: Alan G
Start Date: Immediate
Bricked up door showing signs of internal condensation/damp in wall. Some signs of external wear of cement around current DPC. Initial inspection to assess extent of problem then advice and work to re...
Tewkesbury - GL20
Enquiry from: Zoe B
Start Date: Immediate
We are looking to have a damp survey carried out to identify the issues in two areas of our house.
Cheltenham - GL54
Enquiry from: Sam G
Start Date: Immediate
Suspect rising damp through hallway.
Cheltenham - GL54
Enquiry from: Richard E
Start Date: Immediate
Damp across wall in one bedroom, as like to identify the cause.
Stroud - GL6
Enquiry from: Sherin S
Start Date: Immediate
I am moving into a new property on 8 February 2024, which has a damp problem, accordingly to my surveyor's report. It would be great to have someone come and advise me on options to address the da...
Cirencester, Fairford, Lechlade - GL7
Enquiry from: Milen S
Start Date: Immediate
extension small kitchen there is condensation on the ceiling and maybe it's some kind of small leak are you the property owner: relative of owner how many rooms do you need damp proofing: 1-2 rooms pr...
Stroud - GL5
Enquiry from: Rachel D
Start Date: Immediate
Hello, We are looking for investigations into the cause of 2 areas of damp patches in our hallway extension, is it possible to arrange a visit to carry out inspection and quote. Thanks Rachel
Moreton-in-Marsh - GL56
Enquiry from: Michael B
Start Date: Immediate
damp around door frame at back of house.Signs of paint bubbles inside. Another inside wall might have damp.
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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.
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!
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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