Extensions including garage conversions will typically require extra damp proofing to be installed through the conversion, as the pre-existing garage will typically have 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. In addition, the roof of the garage conversion will need water proofing. The damp proofing of the floor of the garage conversion will usually be performed by utilising 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 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 improved as part of the conversion in order to comply with current building regulations. The walls will need to be damp proofed to be able to safeguard the brickwork from rotting slowly as moisture sets in. This can be performed 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 a part of the building regulations that the garage conversion will need to comply with, and so is it important 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
| 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 Bushey in March 2025
Requests for Damp proofing quotations in Bushey in March 2025. 0% change from March 2025.
Requests for Damp proofing quotations in Hertfordshire in March 2025. 0% change from March 2025.
Bushey has a population of 24,000 and it is a town in the Hertsmere borough of Hertfordshire in the East of England. Hertfordshire can be found in the south of the United Kingdom, bordering other counties including Essex and Cambridgeshire. Greater London is also directly to the south.
Bushey - WD23
Enquiry from: Andrea L
Start Date: Immediate
damp patches and mould and swollen wooden front door. the property is a first floor maisonette the damp is only in this area. this has appeared in recent weeks and is not a historical problem. i ha...
Bushey - WD23
Enquiry from: Susan A
Start Date: Immediate
mould on bathroom floor and behind toilet are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: other please call to appoint
Berkhamsted - HP4
Enquiry from: Nick W
Start Date: Immediate
We have some damage to 1 wall which is caused by damp - most likely due to external problems with roof and wall. We would appreciate it if you could come to provide an estimate for repair and any fur...
Gerrards Cross - SL9
Enquiry from: Christine F
Start Date: Immediate
Hello, we are looking for a free quote regarding some damp proofing in our home. It is a four bedroom detached property. Following from our house survey, we are aware we need a damp proof course to th...
Slough - SL1
Enquiry from: David K
Start Date: Immediate
Damp and mould near windows and bathrooms
Amersham - HP6
Enquiry from: Paul R
Start Date: Immediate
Please can i have a price for a Damp survey.
Berkhamsted - HP4
Enquiry from: Laura S
Start Date: Immediate
We have black mould caused by condensation we think in 3 rooms, a bedroom, our porch and our kitchen. There is there odd spot of mould elsewhere but not much. We also have mould buildup on 4 window fr...
High Wycombe - HP10
Enquiry from: Stephen A
Start Date: Immediate
I live in a small brick flint cottage. The living space is open plan. The front lounge has a wooden floor and no damp issues the rear of the main room has a raised concrete floor. There is rising d...
Gerrards Cross - SL9
Enquiry from: Katharine W
Start Date: Immediate
We have a wall where there is clearly damp from the ground which is higher than the house.
Chesham - HP5
Enquiry from: Jennifer M
Start Date: Immediate
understanding source of damp in attic; What damp proofing is needed outside of the house next to house wall general assessment on how to get to source of damp and what to do about it
Gerrards Cross - SL9
Enquiry from: Dhirendra K
Start Date: Immediate
Hi There is a damp in the bedroom near the radiator, need advise and quotation to fix it.
Amersham - HP7
Enquiry from: Sean W
Start Date: Immediate
We have evidence of lamp in several locations around the property. We are looking for someone professional advice and solutions.
High Wycombe - HP10
Enquiry from: Emma B
Start Date: Immediate
Semi - detached bungalow. New neighbours that attach to my property, made changes in their property moving kitchen and bathroom. Since then I have had on going rising damp in my bathroom. I would ap...
Slough - SL1
Enquiry from: Karen B
Start Date: Immediate
damp wall in the kitchen which is rising upwards
Chesham - HP5
Enquiry from: Natalie M
Start Date: Immediate
I need a damp survey and a quote on the price to damp proof my park home. The damp is in the bathroom and end bedroom
Chesham - HP5
Enquiry from: Hal K
Start Date: Immediate
Plaster to be removed and damp proof course applied from inside, on bay area ground floor. The area to be treated is lower part of the wall and is upto 1m from floor. Wall to be replastered.
Rickmansworth - WD3
Enquiry from: Anna S
Start Date: Immediate
Damp patches on the ceiling. To remove cause
Slough - SL3
Enquiry from: Andy C
Start Date: Immediate
2 bedrooms have mould that need treating and it would also be good to know the cause of it. are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms prope...
Slough - SL3
Enquiry from: Marcin J
Start Date: Immediate
hello i need the survey of damp diagnosis of problems found remedial advice , costs , and a written report for my bank (mortgage) .please send me price or contact with me. house is two bedrooms ma...
Rickmansworth - WD3
Enquiry from: Emma T
Start Date: Immediate
Check what is causing mould and treat if possible
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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.
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!
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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