Extensions such as garage conversions will typically require supplementary 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 comply with building regulations for habitable rooms. This damp proofing should be added to walls and floors. Moreover, the roof of the garage conversion will need water proofing. The damp proofing of the floor of the garage conversion will in most cases be achieved by using a damp proof membrane. This membrane is available 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 some garages, the walls will have already been damp proofed, but this may need to be improved as part of the conversion in order to adhere to current building regulations. The walls will need to be damp proofed to be able to protect the brickwork from rotting gradually 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, therefore 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
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| Labour cost | £1,050 | |
| Material cost | £375 | |
| Waste removal | £75 |
Searches that showed one of our pages for Broxbourne, all services
Broxbourne is a commuter town in Hertfordshire in the East of England with a population of roughly 13,298 as measured in 2001. Broxbourne is twinned with the Sicilian city of Sutera. The name Broxbourne is believed to derive from the Old English words brocc and burna which means Badger stream. The Manor of Broxbourne is referred to in the Domesday Book, which names Broxbourne Mill. The area was exploited for its gravel and sand extraction in the 20th century, that finally stopped when the raw materials were exhausted at the end of the 1960s leaving lots of water filled lakes. Many of the lakes are now part of the Lee Valley Regional Park. While urbanised by industrial and commercial manufacturing, the whole area still has its rural character and is enjoyed by those commuting to London. The New River which passes through the town centre, was built in the early seventeenth century. Broxbourne railway station was constructed in 1840. A terracotta works was opened soon afterwards by James Pulham and Son, who specialised in developing artificial rock garden features; some of their work is preserved within the gardens at Sandringham House and Buckingham Palace. There are 600 businesses in the borough, with warehousing and distribution sectors being very well represented. The employers with over 250 workers include: Fitzpatrick PLC in Hoddesdon (civil engineers); J Sainsbury, also in Hoddesdon; Marks & Spencer; Turnford Retailers and Merck Sharp & Dohme in Hoddesdon related to pharmaceutical research. Tesco has its national headquarters at Delamere Road, Cheshunt. The Borough of Broxbourne at Park Plaza Waltham Cross is also the location of the largest printing plant in the world, which creates publications for News International including The Sun, The Times and The Sun on Sunday. For all your home upgrades, be certain that you select trustworthy pros in Broxbourne to make sure that you get the very best quality service.
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
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
Stansted - CM24
Enquiry from: Daniel C
Start Date: Immediate
To the right of the door high damp readings were recorded and the patching on the wall appears to indicate that damp is present. on the outside there is an air vent which has probably been inserted to
St. Albans - AL4
Enquiry from: Nick W
Start Date: Immediate
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 - 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
St. Albans - AL3
Enquiry from: Alan S
Start Date: Immediate
Bishop's Stortford - CM23
Enquiry from: Car M
Start Date: Immediate
TEST WALLS basement hack off half of wals plaster left tank will be at address 11.30 to 3 sunday and later on monday
Potters Bar - EN6
Enquiry from: Nik D
Start Date: Immediate
Possible water penetration in two places in the house
Property: semi detached
Harpenden - AL5
Enquiry from: Ben T
Start Date: Immediate
I think i have damp in one bedroom, and it gets much colder than the rest of the house. Another room gets mouldy in one corner, not sure if thats something you can help with. The room where i think it
Welwyn Garden - AL8
Enquiry from: Gregory D
Start Date: Immediate
We had someone quote for DPC repair on one corner of our house where it has clearly failed. But I wanted to see what it would cost to do the whole house while we are at it
Bishop's Stortford - CM23
Enquiry from: Evie R
Start Date: Immediate
Hello [Company Name], I own a property in Bishop’s Stortford and have noticed possible damp and mould behind my kitchen cabinets. I’ve also seen small insects (psocids) which I understand may be l
Waltham Cross - EN8
Enquiry from: Lorena S
Start Date: Immediate
A building survey was done and it seems that there is some rising damp in the living room and some possible issues with the isolation in one of the bedrooms. I'd appreciate it if we could discuss thes
Ilford, Chigwell - IG3
Enquiry from: D
Start Date: Immediate
Two bay windows at front of house
Bishop's Stortford - CM23
Enquiry from: Carla M
Start Date: Immediate
MAJOR leaks left by insurance company have ingressed into the walls and been tested and surveyed to high damp levels and failed tanking to basement floor and outside toilet courtyard. Quote for all wo
Waltham Abbey - EN9
Enquiry from: Graham M
Start Date: Immediate
Skirting blown. Was damp behind skirting and on floor. No pipes in this area, so no leaks. Possibly penetration from outside, next to front door
London - N11
Enquiry from: Jagjit C
Start Date: Immediate
Party wall in the passage app. 8m long ground floor 1m high. Paint pealing off, plaster falling with small cracks
Welwyn Garden City - AL7
Enquiry from: Yvonne M
Start Date: Immediate
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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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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