Extensions such as garage conversions will usually require extra damp proofing to be added as part of conversion, as the pre-existing garage typically has a single skin design for walls and floors, which was not manufactured to comply with building regulations for habitable rooms. This damp proofing should be added to walls and floors. In addition, the roofing of the garage conversion will require water proofing. The damp proofing of the floor of the garage conversion will usually be performed by by using 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 pre-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 a few garages, the walls will have already been damp proofed, but this may need to be improved as part of the conversion in order to meet 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 performed by either employing 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 should adhere to, and so is it vital to ensure that your garage conversion employs 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
| Avg. price low | Avg. price low |
|---|---|
| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
£3000
£2250
£1500
£750
£0
| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in Wales in October 2024
Requests for Damp proofing quotations in Wales in October 2024. 0% change from September 2024.
Requests for Damp proofing quotations in United Kingdom in October 2024. 0% change from September 2024.
Ferndale - CF43
Enquiry from: John W
Start Date: Immediate
are you pca certified? i need a report on possible rising damp problem and cost and plan to fix it so that i can get a mortgage. are you the property owner: owner of the property how many rooms do yo...
Llandudno - LL30
Enquiry from: Margaret L
Start Date: Immediate
damp survey and damp proofing 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
Aberdare - CF44
Enquiry from: Linda J
Start Date: Immediate
Damproof course in utility room
Blaenau Ffestiniog - LL41
Enquiry from: Caroline H
Start Date: Immediate
Damp in wall seems to be from roof. Fungus growth downstairs near firvplace
Wrexham - LL11
Enquiry from: Mat S
Start Date: Immediate
Mould on walls due to damp issues
Newport - NP19
Enquiry from: Paul C
Start Date: Immediate
it’s one of my rental properties that seems to have damp in the property, possibly a damp course, it’s in newport the address 64 bristol st, newport it’s maindee area are you the property owner:...
Llangollen - LL20
Enquiry from: Peter F
Start Date: Immediate
I have a with 2 chimney breasts which are damp, one is much worse than the other. We have had the chimney stacks repaired etc and still have an issue. I believe it could possibly be related to salt ...
Machynlleth - SY20
Enquiry from: Paul C
Start Date: Immediate
Eradication of significant recurring fungus in a limited area internally.
Newport - NP11
Enquiry from: Emma W
Start Date: Immediate
Damp on most lower walls of the house lower and ceilings upstairs
Bangor - LL57
Enquiry from: Pippa T
Start Date: Immediate
We have a basement bathroom which is damp. The landlady is looking at injecting the walls.
Porth - CF39
Enquiry from: Sophie C
Start Date: Immediate
I have various points of damp in my house I think it may be penetrative damp but would like a quote if possible please.
Newport - NP11
Enquiry from: Michael B
Start Date: Immediate
Just going through purchase and need to understand extent of damp and cost of repair.
Newport - NP11
Enquiry from: Colin M
Start Date: Immediate
We have an area of wall that appears to be showing signs of damp and we're not sure what we can do about it. Would it be possible to have the site inspected?
Wrexham - LL12
Enquiry from: Karen J
Start Date: Immediate
damp course repointing of bricks 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 appoint
Port Talbot - SA12
Enquiry from: Richard C
Start Date: Immediate
Bathroom and upstairs room which used to be bathroom both are damp need to be reviewed. Please email or text.
Cardigan - SA43
Enquiry from: Lenka J
Start Date: Immediate
Damp in kitchen walls and in hall area.
Pembroke - SA71
Enquiry from: Colin L
Start Date: Immediate
We have both rising damp and penetrating damp as our home is converted from old farm buildings - can you inspect on Friday afternoon please?
Newport - NP19
Enquiry from: Kevin P
Start Date: Immediate
Hi, I've got what I think is penetration damp appearing under or close to windows. It's not affecting large areas but the paint/plaster is now peeling. I've tried drying and treating myself but the...
Wrexham - LL13
Enquiry from: Jane W
Start Date: Immediate
A few areas of rising damp in a 1912 built house need attention
Neath - SA10
Enquiry from: Nigel W
Start Date: Immediate
Free Damp Survey please. The property is a bungalow and the damp issue seems to be getting worse.
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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!
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.
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