Building work | Damp Proofing
Marazion - TR17
Enquiry from: John G
Start Date: Immediate
small section of rising damp requiring injection
Extensions such as garage conversions will usually require additional damp proofing to be added during the conversion, as the pre-existing garage typically has a single skin design for walls and floors, which was not designed to comply with building regulations for habitable rooms. This damp proofing will need to be added to walls and floors. Additionally, the roof of the garage conversion will need water proofing. The damp proofing for the floor of the garage conversion will in most cases be performed 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 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 some garages, the walls will have already been damp proofed, but this might have to be updated as part of the conversion to be able to comply with current building regulations. The walls will need to be damp proofed in order to safeguard the brickwork from rotting gradually as moisture sets in. This is carried out by either using damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls already present in the garage. Damp proofing is a part of the building regulations that the garage conversion should adhere to, and so is it necessary 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 |
|---|---|
| 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 Marazion in May 2026
Requests for Damp proofing quotations in Marazion in May 2026. 0% change from April 2026.
Requests for Damp proofing quotations in Cornwall in May 2026. 0% change from April 2026.
Marazion is a civil parish as well as community, on the coast of Mount's Bay in Cornwall, England, UK. It is 2 miles (3.2 km) eastern of Penzance as well as the tidal island of St Michael's Mount is half-a-mile offshore. At low water an embankment connects it to the community as well as at high water passenger watercrafts lug site visitors in between Marazion and St Michael's Mount. Marazion is a growing traveler resort with an energetic area of artists who create and also offer paintings and also pottery in the community's art galleries. Marazion lies within the Cornwall Area of Outstanding Natural Beauty (AONB). Virtually a third of Cornwall has AONB designation, with the same status and also protection as a National Park. On the western side of the town is Marazion Marsh, a RSPB book as well as a Site of Special Scientific Interest (SSSI).
Marazion - TR17
Enquiry from: John G
Start Date: Immediate
small section of rising damp requiring injection
Penzance - TR18
Enquiry from: Nader G
Start Date: Immediate
i have a small damp patch at the entrance to the house on the inside. i’d like a survey to find out how to permanently fix this. i’d like a quote first are you the property owner: owner of the pro...
Redruth - TR15
Enquiry from: Tina M
Start Date: Immediate
the property has a damp problem especially on the left side of the house. the wall is soaking wet are you the property owner: relative of owner how many rooms do you need damp proofing: 3-4 rooms prop...
Redruth - TR15
Enquiry from: Lisa Z
Start Date: Immediate
hi, i have white mould just a small section in my loft. due to the air vent coming loose. please can you quote me on putting vent back and mould please. i have images as i have had a homebuyers survey...
Penzance - TR20
Enquiry from: Sarah M
Start Date: Immediate
I am in process of completing on a granite cottage in Perranuthnoe. The survey has identified a damp issue, resulting from the external wall being built higher than the internal. The best solution see...
Camborne - TR14
Enquiry from: Lisa H
Start Date: Immediate
Idea of where damp is coming from
Helston - TR13
Enquiry from: Mick S
Start Date: Immediate
Damp walls some of which are back to earth
Helston - TR13
Enquiry from: Sophia G
Start Date: Immediate
a flat needs a damp survey to try and resolve the issue, i do not know if this is a flat issue or buildng would this be able to be determined please
Helston - TR13
Enquiry from: Mike C
Start Date: Immediate
Damp proof on the front wall of building Also timber treatment loft and stairs
St. Ives - TR26
Enquiry from: Lisa F
Start Date: Immediate
Identify issue in lower floor room and recommend treatment. Currently no mould, but damp musty smell.
Penzance - TR20
Enquiry from: Tamsin B
Start Date: Immediate
Assessment and damp proofing of traditional stone wall in Annexe
St. Ives - TR26
Enquiry from: Miles A
Start Date: Immediate
survey and quote required for probable damp proofing please. 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 ...
Redruth - TR15
Enquiry from: Andrew H
Start Date: Immediate
Tanking to basement boundary walls to Royal Mail Distribution office. Can someone give me a call please
Penzance - TR18
Enquiry from: Jeff G
Start Date: Immediate
We need a remedy for rising damp in a party wall, and remedy for damp penetrating through the wall at higher and ceiling level. We have uncovered some attempt to remedy this by the previous owners at...
Camborne - TR14
Enquiry from: Christian S
Start Date: Immediate
Mould on walls appearing in multiple rooms. Full house building survey less than 1 year ago shows only minimal damp in the old cottage.
St. Ives - TR26
Enquiry from: Jill P
Start Date: Immediate
Damp proof interior in several rooms
Camborne - TR14
Enquiry from: Clive B
Start Date: Immediate
we have two cold rooms in the bungalow on opposite corners of the building with condensation and mould and one room when it rains constantly and heavy mist /drizzle we get a wet area in the corner on...
Redruth - TR16
Enquiry from: Chris H
Start Date: Immediate
Small area of wall, rising damp in solid wall
Helston - TR13
Enquiry from: Caroline C
Start Date: Immediate
I NEED TO get a rising damp problem done as soon as possible please i had a builder look today definately needs doing . front wall back wall inside .my mobile 778577xxxx Please can you do as soon as...
Helston - TR13
Enquiry from: Harriet K
Start Date: Immediate
damp survey required for old property that is showing signs of damp
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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.
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!
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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