Damp Proofing in Barnes

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Damp Proofing in Barnes

Extensions including garage conversions will typically require additional damp proofing to be installed through the conversion, as the pre-existing garage will often have a single skin design for walls and floors, which was not manufactured to comply with building regulations for habitable rooms. This damp proofing will need to be put into walls and floors. Moreover, the roof of the garage conversion will require water proofing. The damp proofing for the floor of the garage conversion will often be performed by by using a damp proof membrane. This membrane will 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 some garages, the walls will have already been damp proofed, but this might have to be updated as part of the conversion to be able to meet current building regulations. The walls should be damp proofed in order to safeguard the brickwork from rotting slowly as moisture sets in. This is done by either implementing damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already present in the garage. Damp proofing is an integral 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 incorporates appropriate damp proofing methods.

Average Damp proofing cost in Barnes

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

Average price per Damp proofing job in 2026

Avg. price low

Avg. price low
£1,125

Avg. price

Avg. price
£1,500

Avg. price high

Avg. price high
£1,725

£1900

£1425

£950

£475

£0

Prices based on actual Damp proofing costs for Barnes, as reported by local LeadsDoWork members.

Damp proofing installation cost in Barnes 2026

Labour cost £1,050
Material cost £375
Waste removal £75
Time frame: 3-5 days
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Barnes

Barnes is a district within the London Borough of Richmond upon Thames. It is inside the north east of the borough and is positioned 9.3 km west south west of Charing Cross.

Barnes has a great deal of eighteenth centu and 1800s buildings in the streets close to Barnes Pond, which make up Barnes Village conservation area where many of the mid-19th century buildings are placed. Around the east riverside, there's the WWT London Wetland Centre which adjoins a number of fields for 3 principal national team sports.

The town had been part of Surrey, and it appears within the Domesday book as ‘Berne’. Barnes’ village church was constructed in between 1100 and 1150 and named the Chapel of St Mary’s. It was extended in the early 13th century, and was added to once more in 1786. A big fire destroyed components of the extensions to the chapel in 1978, so restoration work was completed in 1984.

Barnes has a large amount of sporting history spanning decades. In football, a High Master of St Paul’s School, Richard Mulcaster, is recognised with turning mob football into a refereed team sport. The school sits on Lonsdale Road, but at the time of Mulcaster it was positioned in St Paul’s Cathedral. The town includes a non-league football team named Stonewall FC, who play at Barn Elms Playing Fields.

Barnes Rugby Club is believed to be the oldest club in the world in any football code. They play next to the WWT London Wetlands Centre. The town is also known for rowing; the loop of the Thames surrounding Barnes is a part of the Championship Course made use of for the Oxford and Cambridge Boat Race.

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16 Sep

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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

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17 Jun

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10 Jun

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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

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30 May

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26 Apr

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Quotation ***dground Massionnet dampening & condensation & general upgrading for the house

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15 Apr

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Tanking one bedroom wall, a hall way wall and a utility room wall

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10 Apr

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Mitcham - CR4

Enquiry from: Ope O

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I want to Waterproof the flat concrete roof and damp proof the end of terrace wall

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21 Mar

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Beckenham - BR3

Enquiry from: Pippa S

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I have a damp patch on the wall in my kitchen

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11 Mar

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London - SW16

Enquiry from: Aamir R

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02 Mar

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Enquiry from: Cam I

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16 Feb

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Enquiry from: Peter M

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Damp proofing Lead Damp proofing Lead

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

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FAQs

How can I tell if my property has damp?

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.

How quickly can I redecorate my walls after damp proofing has been installed?

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.

How can I tell what type of damp I’ve got?

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.

Why is it important to fix a damp problem?

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!

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Barnes Damp proofing pros are rated 3.3 out of 5 on average: 1 rated pros, 1 reviews, of 31 pros covering the area.
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