Extensions including garage conversions will typically require extra damp proofing to be installed as part of conversion, as the pre-existing garage normally has a single skin design for walls and floors, which was not manufactured 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 of the floor of the garage conversion will often be achieved by by using a damp proof membrane. This membrane can come in either solid or liquid form. The damp proof membrane will be placed 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 a few garages, the walls have already been damp proofed, but this may have to be updated as part of the conversion to be able to adhere to current building regulations. The walls will need to be damp proofed to be able to protect the brickwork from rotting slowly as moisture sets in. This is performed by either using damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already in the garage. Damp proofing is an important part of the building regulations that the garage conversion should comply with, and so is it necessary to make sure that your garage conversion incorporates 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
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| 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 Devon in October 2024
Requests for Damp proofing quotations in Devon in October 2024. 0% change from September 2024.
Requests for Damp proofing quotations in South West in October 2024. 0% change from September 2024.
Hello and welcome to my page. We are a Family run building business with over 20 years in the building industry. We offer a verity of services this includes: Damp proofing specialists, Bricklaying Landscaping Groundwork’s/ drainage Roof repairs Poi...
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Bideford - EX39
Enquiry from: Susan L
Start Date: Immediate
i need a free quote because my tenants say that there is some form of damp and i’m not sure what needs to be done. i don’t live locally so i’m unable to see what’s needed. my agents can let y...
Seaton - EX12
Enquiry from: Anna M
Start Date: Immediate
Need an inspection and advice and possible mould removal
Newton Abbot - TQ12
Enquiry from: Laura D
Start Date: Immediate
Purchasing the property and survey has come back with rising damp. Would like investigating and quote please.
Ilfracombe, Woolacombe - EX34
Enquiry from: Jake T
Start Date: Immediate
Rising damp in the living, both sides of fire places. Damp ceilings in front and middle bedroom possibly coming from the loft/chimney stack. Downstairs toilet back wall.
Kingsbridge - TQ7
Enquiry from: Jules M
Start Date: Immediate
Bubble and damp wall… no mould
Torquay - TQ2
Enquiry from: Amber J
Start Date: Immediate
Damp patch on living room wall, unsure if it is is a leak or coming down from roof. Needs resolution
Paignton - TQ3
Enquiry from: Yasser T
Start Date: Immediate
signs of rising damp around the front bay window and at the flank wall
Plymouth - PL4
Enquiry from: Damian Z
Start Date: Immediate
Wet patches on internal wall
Tavistock - PL19
Enquiry from: Julia a
Start Date: Immediate
OLDER PROPERTY WOTH STONE WALLS. DAMP VISIBLE AND APPEARS TO BE SPREADING. ALSO SALTS EVIDENT ON STONE AND PLASTETED AREAS
Totnes - TQ9
Enquiry from: Lucy B
Start Date: Immediate
I believe we have a condensation issue in our home Mould appearing on walls and ceilings, wet windows etc. We had cavity wall insulation put in a few years back and the problem seems worse, mostl...
Exmouth - EX8
Enquiry from: Michael K
Start Date: Immediate
Damp in walls and chimney breast in hall area
Exeter - EX4
Enquiry from: Alice M
Start Date: Immediate
We have surveyed a flat and there is high moisture readings indicating a potential of rising damp. We require a survey to quote and once bought a service to resolve all issues. We can provide the surv...
Exeter - EX4
Enquiry from: Jason R
Start Date: Immediate
Rising damp. We need to know source and how to get rid of it
North Tawton, Okehampton - EX20
Enquiry from: Amy P
Start Date: Immediate
Resolve moisture trapped in (Cob) 2 exterior walls and improve condensation within the property. The property has not yet been purchased but we have had a damp survey completed which has indicated hi...
Newton Abbot - TQ13
Enquiry from: Phil R
Start Date: Immediate
We have a problem with damp which is around the chimney breast, in the sitting room and also in the same wall above this, in a room we use as an office. We have had the chimney sprayed (externally) b...
Sidmouth - EX10
Enquiry from: Fran S
Start Date: Immediate
I have damp on inside of conservatory wall, which backs onto house, inside house no apparent problems. Not sure where damp is coming from. Would like find source and stop re occurrence.
Barnstaple - EX32
Enquiry from: Henry B
Start Date: Immediate
We are looking at getting a survey done to see if we are eligible for a cavity wall insulation installation, but the surveyor who popped out was unable to identify whether or now we have a damp proof ...
Torrington - EX38
Enquiry from: Sue T
Start Date: Immediate
hi, live in old cottage no damp proof, looking for anything that could be done to living room which has damp problems - not sure it’s possible to put damp proof course in. are you the property owner...
Plymouth - PL3
Enquiry from: Bridget B
Start Date: Immediate
Damp proofing course on the walls inside
Torquay - TQ1
Enquiry from: Samuel C
Start Date: Immediate
I have had damp on my plaster board next to the door for a couple of years now, I have removed all rotten plaster board and bricks on the inside of property are 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.
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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