Extensions including garage conversions will usually require additional damp proofing to be added through the conversion, as the pre-existing garage typically 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 added to walls and floors. Furthermore, the roof of the garage conversion will need water proofing. The damp proofing for the floor of the garage conversion will usually be achieved by by using 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 pre-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 a few garages, the walls will have already been damp proofed, but this might need to be updated as part of the conversion to be able to comply with current building regulations. The walls should be damp proofed to be able to safeguard the brickwork from rotting gradually as moisture sets in. This can be accomplished by either making use of damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls already present in the garage. Damp proofing is an important part of the building regulations that the garage conversion will need to comply with, therefore is it vital to make sure 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 |
£1900
£1425
£950
£475
£0
| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Requests for quotations in Pontypridd in May 2026
Requests for Damp proofing quotations in Pontypridd in May 2026. 0% change from April 2026.
Requests for Damp proofing quotations in Mid Glamorgan in May 2026. 0% change from April 2026.
Pontypridd is both equally a community as well as a primary town of Rhondda Cynon Taf, Wales and is situated 12 miles north of the Welsh capital city of Cardiff. Pontypridd is commonly abbreviated "Ponty" by local residents.
Pontypridd - CF37
Enquiry from: Lisa M
Start Date: Immediate
DPC last done 27 years ago and we are selling. the surveyor has advised a new DPC at our cost, this is a three bed Victoria style semi on Llantwit road, Please can you send me a quote
Pontypridd - CF37
Enquiry from: Ryan J
Start Date: Immediate
The bathroom shows signs of excess damp and mould. It’s an extension and I would like a quote to help me look at remedies to solve it
Pontypridd - CF37
Enquiry from: Frances R
Start Date: Immediate
Possible rising damp but could also be qater leak. Exploration of source of problem, assessment and quote.
Pontypridd - CF37
Enquiry from: Judit C
Start Date: Immediate
I believe I have wet rot in my kitchen and laundry room. Walls have wet patches and the paint keeps peeling off. I can see fungus at some places.
Pontypridd - CF37
Enquiry from: Cheryl G
Start Date: Immediate
Hi I am experiencing some damp on an external bedroom wall The bedroom is located on *** floor of a 2 bedroom house. I would appreciate a survey to understand the severity of the condition Thankyou
Pontypridd - CF37
Enquiry from: Jasmin T
Start Date: Immediate
rising damp, either side of building length as terraced (not extension part of building) , rising about 50cm off floor. damp specialist said its along one side where next doors house is a little highe...
Pontypridd - CF37
Enquiry from: Paige H
Start Date: Immediate
We have mould in 3 areas of our rented property, we'd like a damp survey to ascertain if it is structural or due to previous condensation issues.
Pontypridd - CF37
Enquiry from: Jasmin T
Start Date: Immediate
damp proofing in front of house under bay window
Pontypridd - CF37
Enquiry from: Kai R
Start Date: Immediate
I have several walls in the house with damp issues i would like a full inspection of these to assess what the next steps should be
Pontypridd - CF37
Enquiry from: Pam G
Start Date: Immediate
Damp proof course on mid terrace house
Pontypridd - CF37
Enquiry from: Caleb W
Start Date: Immediate
i am in the process of purchasing this property (currently live in cardiff). we have had a damp & timber survey and i would like to get a quote for the works recommended in it. these include lowering ...
Pontypridd - CF37
Enquiry from: Paramjit G
Start Date: Immediate
wet patches on internal walls 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
Pontypridd - CF37
Enquiry from: Danielle E
Start Date: Immediate
We believe we have rising damp in a property we have just bought. We are wondering what you would charge for a survey or if we would be able to get a free survey? And then a rough guide of the low end...
Pontypridd - CF37
Enquiry from: Raj S
Start Date: Immediate
Mortgage valuation report saying first floor room have damp, I feel that’s happen by condensation, I need second opinion from you guys. Thank you
Pontypridd - CF37
Enquiry from: Janet R
Start Date: Immediate
damp and timber report for mortgage company.
Pontypridd - CF37
Enquiry from: Louise R
Start Date: Immediate
Identify how and why large random patches of damp appearing
Pontypridd - CF37
Enquiry from: Coel P
Start Date: Immediate
The entire downstairs needs damp proofing. This is the kitchen, the hallway and the living room. As you know this will require hacking off the wall up to the height of about 3 feet all the way around ...
Pontypridd - CF37
Enquiry from: Jessica C
Start Date: Immediate
We have two areas of concern. We have had damp worn before on one of the areas but we aren’t sure why it appears to have come back.
Pontypridd - CF37
Enquiry from: Vicki W
Start Date: Immediate
Damp survey following our home buyers report
Pontypridd - CF37
Enquiry from: Max H
Start Date: Immediate
we have damp on the back kitchen wall which is making the paint peel off in a circular patch about 0.5m in diameter are you the property owner: owner of the property how many rooms do you need damp pr...
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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.
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.
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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