Extensions such as garage conversions will typically require supplementary damp proofing to be added during the conversion, as the pre-existing garage normally has a single skin design for walls and floors, which was not designed to conform to building regulations for habitable rooms. This damp proofing will have to be added to walls and floors. In addition, the roofing of the garage conversion will require water proofing. The damp proofing for the floor of the garage conversion will usually be performed by employing a damp proof membrane. This membrane can come in either solid or liquid form. The damp proof membrane will be put 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 will have already been damp proofed, but this might need to be improved as part of the conversion to be able to comply with current building regulations. The walls should be damp proofed to be able to safeguard the brickwork from rotting slowly as moisture sets in. This is done 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 integral part of the building regulations that the garage conversion should comply with, and so is it important to ensure that your garage conversion makes use of 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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| 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 Waltham Forest is a London borough in north east London, England. The local authority is Waltham Forest London Borough Council. It covers an overall area of roughly 14.99 square miles. The borough is positioned in between Epping Forest and Essex towards the north, Redbridge towards the east, Newham and Hackney to the south, and Haringey and Enfield towards the west, where the River Lea and Lea Valley and the surrounding parkland forms a green corridor separating north and east London. Main districts are Leyton and Leytonstone in the south, Walthamstow in the middle, and Chingford in the north.
In accordance with population estimates from the middle of 2014, Waltham Forest is a borough with a permanent population of about 268020 individuals. The north and south of the borough, split by the North Circular Road, contrast markedly in terms of ethnicity and socio-economic indicators, with built-up urban districts in the south having inner-city characteristics, and more affluent residential development towards the north with open spaces, parks, and playing fields.
Historically referred to as the seat of the Arts and Crafts Movement under the stewardship of William Morris, Waltham Forest continues to help several contemporary artists and art groups. These consist of the North East London Independent Artists group, primarily based in the Changing Room Gallery in Lloyd Park, the 491 Gallery in Leytonstone, and a number of independent artists, also mainly within the Leytonstone area. Waltham Forest was among the list of six London boroughs that hosted the 2012 Summer Olympics.
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
Beckenham - BR3
Enquiry from: Hakan H
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Looking for a carbide testing for the screed to be done on 15th or 16th of September in two rooms
London - N7
Enquiry from: Ravneet M
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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
London - W3
Enquiry from: Chris R
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Front of house approximately 6M fix the damp proofing externally. Red brick 1920s terraced proofing
London - SE27
Enquiry from: William P
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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
Bexley - DA5
Enquiry from: Chloe N
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Need someone to look at some damp & timber issues raised on a property survey which we are purchasing if possible please
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
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
Brentwood - CM15
Enquiry from: Peter K
Start Date: Immediate
Area of damp on sun lounge interior wall, approx 4 feet square. two years ago work was carried out to resolve the problem, the following year everything was fine, but this year the problem has resurfa
Property: terrace
Beckenham - BR3
Enquiry from: Pippa S
Start Date: Immediate
I have a damp patch on the wall in my kitchen
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
Dartford - DA1
Enquiry from: Mike B
Start Date: Immediate
Damp in bathroom constantly
Ilford - IG2
Enquiry from: Alok A
Start Date: Immediate
Anti-Mould, Damp painting required for the entire 2/3 bedroom flat including cleaning existing mould etc
London - E18
Enquiry from: Panny Z
Start Date: Immediate
There is rising damp on the inside of all the external walls. the flat is on the ground floor
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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.
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!
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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