Extensions including garage conversions will typically 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 have to be put into walls and floors. Moreover, the roofing of the garage conversion will need water proofing. The damp proofing for the floor of the garage conversion will usually be performed by by using a damp proof membrane. This membrane will come in either solid or liquid form. The damp proof membrane will be put 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 have already been damp proofed, but this might have to be updated as part of the conversion in order to meet current building regulations. The walls will need to be damp proofed in order to protect the brickwork from rotting slowly as moisture sets in. This can be carried out by either utilising 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, therefore is it important 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 Narberth in May 2026
Requests for Damp proofing quotations in Narberth in May 2026. 0% change from April 2026.
Requests for Damp proofing quotations in Dyfed in May 2026. 0% change from April 2026.
Narberth is a town and also neighborhood in Pembrokeshire, southwest Wales. It was founded around a Welsh court, however later on came to be a Norman stronghold on the Landsker Line. It became the headquarters of the thousand of Narberth. It was as soon as a marcher borough. George Owen defined it in 1603 as one of 9 Pembrokeshire "districts in decay". In 2011, the population was 2,150, of which a 3rd are Welsh-speaking. Narberth is close to the A40 trunk road and gets on the A478. Narberth railway station gets on the main line from Swansea. Narberth is twinned with Ludlow, and also both communities celebrate a yearly food festival.
Hi there my name is Tracy Mccready I offer a reliable service and a free fix question and fully insured and safety conscious and give a guarantee warranty and accept card payment or bank transfer ar or check
Was so nice to have someone give us advice on our damp problems without prejudice he gave good advice and helpful soluti...
Narberth - SA67
Enquiry from: MARIE J
Start Date: Less than one month
have got rising damp in hall and would like quotes fo the job Are you the property owner: Owner of the property How many rooms do you need damp proofing: 1-2 Rooms Property Type: Semi detached Time sc...
Haverfordwest - SA61
Enquiry from: Susan B
Start Date: Immediate
customer in haverfordwest area has requested that we arrange quotes for their damp proofing project.ms are considering various options and would like to discuss with a damp proofing specialist directl...
Pembroke Dock - SA72
Enquiry from: Oliver F
Start Date: Immediate
Survey in basement of property only, to determine root cause of continuing damp problem. Damage was caused to a wall of the property over a year ago by a digger and we need to understand if the ongoin...
Milford Haven - SA73
Enquiry from: BRUCE Y
Start Date: Immediate
I have some rising damp in my hallway. I would like to discuss treatment and a quotation for the job. Please could you give me a call on ***. Many thanks. Bruce Young
Tenby - SA70
Enquiry from: John M
Start Date: Immediate
Survey of woodworm, dry rot and damp proofing
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?
Haverfordwest - SA62
Enquiry from: Tom M
Start Date: Immediate
There is dampness on the walls in the master bedroom which is upstairs and also in the toilet downstairs. I'm not an expert so will need somebody to come and take a look! I will be available betwee...
Milford Haven - SA73
Enquiry from: Sarah M
Start Date: Immediate
Would you be able to do a damp survey and give me a quote on the work needing to be carried out?
Haverfordwest - SA62
Enquiry from: Brynley G
Start Date: Immediate
external and internal walls are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: detached please call to appoint
Pembroke Dock - SA72
Enquiry from: Rob J
Start Date: Immediate
Dampness on internal walls
Haverfordwest - SA62
Enquiry from: Penny D
Start Date: Immediate
We have damp either rising from the floor or coming through an outside wall.
Pembroke - SA71
Enquiry from: Anna O
Start Date: Immediate
I don't know what work needs doing yet
Milford Haven - SA73
Enquiry from: Gregory H
Start Date: Immediate
damp ingress into upstairs attic and bedroom, chimney area. 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 c...
Milford Haven - SA73
Enquiry from: Kevin D
Start Date: Immediate
Investigate and cure damp problem.
Pembroke Dock - SA72
Enquiry from: Lucy S
Start Date: Immediate
Can I have a quote for damp proofing my basement please
Pembroke Dock - SA72
Enquiry from: Charlotte H
Start Date: Immediate
Damp issue unknown source on lower floor stairwell
Whitland - SA34
Enquiry from: Frances H
Start Date: Immediate
Damp issues on my walls in house
Milford Haven - SA73
Enquiry from: Janet A
Start Date: Immediate
Penetrating damp in one of the bedrooms, and mould around some windows in another bedroom. We would like a full survey to determine any other damp problems (this is an old 1920s house), and then hav...
Pembroke Dock - SA72
Enquiry from: Amy J
Start Date: Immediate
we have had a report done on a house we are looking to purchase and have been recommended that we have an area injected with a damp proofing injection cream. we were looking at getting a quote for wha...
Milford Haven - SA73
Enquiry from: Victoria G
Start Date: Immediate
We are looking for a damp proof report please
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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.
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.
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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