Extensions including garage conversions will typically require additional damp proofing to be added during 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. Furthermore, the roofing of the garage conversion will need water proofing. The damp proofing of the floor of the garage conversion will most likely be achieved by using 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 pre-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 a few garages, the walls have already been damp proofed, but this might need 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 is performed by either employing damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls already present in the garage. Damp proofing is an important part of the building regulations that the garage conversion should comply with, and so is it vital to make sure 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 |
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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 |
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The London Borough of Brent is a London borough in north west London, and forms a part of Outer London. Brent was formed in 1965 from the area of the former Municipal Borough of Wembley and Municipal Borough of Willesden of Middlesex. Its name derives from the River Brent which runs via the borough. The key areas are Kilburn, Wembley and Harlesden. It borders the boroughs of Harrow towards the north-west, Barnet to the north-east, Camden towards the east, Westminster to the south-east, and Kensington and Chelsea, Hammersmith and Fulham, and Ealing to the south. The local authority is Brent London Borough Council. Brent includes a mixture of residential, industrial and commercial land. The majority of the eastern border is formed by the Roman road Watling Street, which is now the modern A5. The borough covers a total area of 16.70 square miles. As outlined by population estimates from the middle of 2014, the town is thought to possess a permanent population of around 320762. Inside this population, 23.17 per cent own their house outright, and a further 31.33 per cent own their home with a mortgage. Brent is also among the most diverse localities in the nation, with large Asian and Indian, Black African, Black Caribbean, Irish (largest in the nation), and Eastern European communities. The borough is served by a lot of London Underground, London Overground and National Rail stations. Brent is recognised most famously as the home to Wembley Stadium, which is among the country's greatest landmarks, along with Wembley Arena. For all your home upgrades, be certain that you utilise trustworthy professionals in Brent to ensure that you get the top quality.
London - SW16
Enquiry from: Jigisha S
Start Date: Immediate
Hi dear, We having damp problem in our outbuilding in the garden.Skirting board shows sign of it as broken.Do you offer free visit for insepection and survey then please do contact me
Slough - SL1
Enquiry from: Richard K
Start Date: Immediate
I need a damp and timber report carried out
London - N7
Enquiry from: Ravneet M
Start Date: Immediate
Have had two internal walls in a basement flat come up with high moisture readings. 40% in an internal bathroom wall which feels dry but has some hard bumps at the bottom. Width of wall is about 70cm
London - N9
Enquiry from: Molly M
Start Date: Immediate
Assess my wall and sort out the damp prof problem
London - SW16
Enquiry from: Joel J
Start Date: Immediate
Rising damp. removing existing plaster and injecting damp proof chemicals and re plastering and painting of wall at front window bay
Property: semi detached
London - SW20
Enquiry from: Angela S
Start Date: Immediate
We have discovered an issue with property and would like a visit/inspection to identify the cause
Property: terrace
Pinner - HA5
Enquiry from: Kiran M
Start Date: Immediate
London - W3
Enquiry from: Chris R
Start Date: Immediate
Front of house approximately 6M fix the damp proofing externally. Red brick 1920s terraced proofing
Ashford - TW15
Enquiry from: Krishna A
Start Date: Immediate
To check whether the wall is damp or not
London - SE27
Enquiry from: William P
Start Date: Immediate
There is damp in my conservatory which was built about 10 years ago. The damp has affected one wall and the shed ceiling and only appears after prolonged rain
Potters Bar - EN6
Enquiry from: Priyanka R
Start Date: Immediate
To review the damp, see the source, take damp readings and advise the best course of action
Pinner - HA5
Enquiry from: Kiran M
Start Date: Immediate
Damp wall in daughter’s bedroom. Find and fix the issue
Harrow - HA3
Enquiry from: Mukund V
Start Date: Immediate
Quotation ***dground Massionnet dampening & condensation & general upgrading for the house
London - SW7
Enquiry from: Harriet S
Start Date: Immediate
Tanking one bedroom wall, a hall way wall and a utility room wall
Mitcham - CR4
Enquiry from: Ope O
Start Date: Immediate
I want to Waterproof the flat concrete roof and damp proof the end of terrace wall
London - SW16
Enquiry from: Aamir R
Start Date: Immediate
My bedroom roof got damp marks. Need to fix that
London - SW16
Enquiry from: Cam I
Start Date: Immediate
Damp proofing enquiry
Epsom - KT19
Enquiry from: Peter M
Start Date: Immediate
We have a small amount of damp rising on a small wall in our conservatory - all the walls were treated with a waterproof membrane and re plaster boarded last year but this small wall was not done
Property: semi detached
London - E7
Enquiry from: Zahirulhasan S
Start Date: Immediate
Due to recent rains, some water / moisture seems to have seeped onto the inner wall, blistering the paint / coating; so may need damp proofing / sealing of some sort
London - NW10
Enquiry from: Lakhan N
Start Date: Immediate
Damp proofing of 1 wall in communal ground floor hallway approximately 4.5 m/sq affected area from ground up. - Take back to brickwork approximate 1.5m height. - Apply for form of damp proofing - plas
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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!
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.
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