Extensions including garage conversions will often require supplementary damp proofing to be added as part of conversion, as the pre-existing garage routinely has a single skin design for walls and floors, which was not manufactured to comply with building regulations for habitable rooms. This damp proofing will have to be added to walls and floors. Additionally, the roof of the garage conversion will require water proofing. The damp proofing of the floor of the garage conversion will in most cases be performed by employing a damp proof membrane. This membrane is available in either solid or liquid form. The damp proof membrane will be put down either on top of the existing concrete floor, underneath the new floor, or as part of both, depending on whether the floor will be a solid or a floating floor. In some garages, the walls have been damp proofed, but this may have to be updated as part of the conversion in order to meet current building regulations. The walls should be damp proofed to be able to protect the brickwork from rotting slowly as moisture sets in. This can be accomplished 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 an integral part of the building regulations that the garage conversion should comply with, therefore is it necessary to ensure that your garage conversion employs 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
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| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
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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...
Knowledgable about the problem.
The Hive Efficiency Group supply and install a range of products to both residential and commercial properties, designed to assist in making them more energy efficient and maintenance free for many years to come. From thermally effiecient wall c...
all good
Mark responded promptly to my enquiry and made an appointment to come and look at the issue in question very soon. He ar...
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Still not had the quote sent to me :-(
Guildford - GU4
Enquiry from: Jay M
Start Date: Immediate
Brick wall crack fixing, damp proof protection. Conservatory door fixing due to the clay soil movement
Waterlooville - PO8
Enquiry from: Terry P
Start Date: Immediate
I have an air brick that is no longer required as I no longer have a gas fire. I would like it sealed both inside and out. I'm getting mould on the interior wall from the cold air and warm air inside
Herne Bay - CT6
Enquiry from: Tracy S
Start Date: Immediate
Quote for work rendered finish possibly no dpm?
Broadstairs - CT10
Enquiry from: Robert M
Start Date: Immediate
Survey to determine if 3x chimney breasts are actually wet or if it’s condensation on old damp patches.( the chimney flashings were replaced 6 months ago together with some minor roof work)
Dover - CT17
Enquiry from: Courtney S
Start Date: Immediate
Hi, we’ve had someone around to look at some damp we’ve got in our hosue. They’ve advised we need the following work done: Porch • To drill holes at 12cm centres along porch wall internally an
Caterham, Whyteleafe - CR3
Enquiry from: Nisia S
Start Date: Immediate
Small storage cupboard within a let business property damp proofed
Southampton - SO16
Enquiry from: Jacek A
Start Date: Immediate
I would like to check if the bathroom floor is dry—or if it needs drying—before the bathtub installation work begins. I see that you handle this free of charge or proceed with the drying process y
Basingstoke - RG22
Enquiry from: Amarjit G
Start Date: Immediate
Initial free survey on a small damp and mould problem near back door of kitchen
Beckenham - BR3
Enquiry from: Hakan H
Start Date: Immediate
Looking for a carbide testing for the screed to be done on 15th or 16th of September in two rooms
Slough - SL1
Enquiry from: Richard K
Start Date: Immediate
I need a damp and timber report carried out
Wantage - OX12
Enquiry from: Charlotte P
Start Date: Immediate
Old property with slate damp coarse that requires replacing. Possibility of damaged floor joists also. So may require floor taking up and digging out a bit before replacing joists and installing circu
Sheerness - ME12
Enquiry from: Graeme S
Start Date: Immediate
Request a free no obligation Quote
Gillingham - ME7
Enquiry from: Grainne M
Start Date: Immediate
I have had a survey conducted that says the DPC on my current rear extension has been bridged. This has caused the render to fail
Leatherhead - KT22
Enquiry from: Arianna A
Start Date: Immediate
Quote for a 7.6 sqm (82 sq ft) cellar
Thatcham - RG18
Enquiry from: Bobby D
Start Date: Immediate
Type C system needed for a 6m basement wall
Farnborough - GU14
Enquiry from: Peter H
Start Date: Immediate
Our front bedroom has mould above the window, possibly caused by a blocked gutter , which has now been cleared of leaves. however the mould remains and is difficult to eliminate. we need to be rid of
Property: terrace
Bexhill-on-Sea - TN40
Enquiry from: Daniel S
Start Date: Immediate
Large bedroom and corridor wall need damp proofing
Bexley - DA5
Enquiry from: Chloe N
Start Date: Immediate
Need someone to look at some damp & timber issues raised on a property survey which we are purchasing if possible please
Marlow - SL7
Enquiry from: Simon M
Start Date: Immediate
Would like a free damp inspection please
Fareham - PO16
Enquiry from: Jacqueline W
Start Date: Immediate
Rising damp front of house-tide mark on walls and crumbling walls! Help needs attention!
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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.
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.
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