Damp Proofing Costs

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Damp proofing

Extensions including garage conversions will often require extra damp proofing to be added during the conversion, as the 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 will need to be put into walls and floors. In addition, the roofing of the garage conversion will need water proofing.

The damp proofing of the floor of the garage conversion will in most cases be performed by utilising 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 existing concrete floor, below 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 improved as part of the conversion in order to meet current building regulations. The walls will need to be damp proofed in order to safeguard the brickwork from rotting gradually as moisture sets in. This can be done 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 should adhere to, and so is it important to ensure that your garage conversion makes use of suitable damp proofing methods.

Average Damp proofing cost

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 2022

Avg. price low

Avg. price low
£619

Avg. price

Avg. price
£1,607

Avg. price high

Avg. price high
£2,557

£2700

£2025

£1350

£675

£0

Prices based on actual Damp proofing costs for your area, as reported by local Quotatis members.

Damp proofing installation cost in your area 2022

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

Damp proofing Manufacturers

Damp proofing FAQs

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.

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.

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!

How to Stop Damp Penetrating Brickwork

HFAC

Based: in Henley on thames, RG9

Proudly Serving Customers in Henley-on-Thames and Surrounding Areas in a 50-Mile Radius

HFAC Ltd ...

Latest review

Albert H., SN7
25th March 2022

Building work | Damp Proofing in Faringdon

excellent response to our need and hopefully a permanent solution has been found.

Weatherdry Insulation

Based: in Tamworth, B79

We are a company that specialises in Damp Proofing & Insulation. We have a 100% success rate in res...

Latest review

Karen G., DY8
6th February 2022

Building work | Damp Proofing in Stourbridge

Very obliging and friendly but not able to identify damp problem. Limited knowledge s...

JJS Pointing Company

Based: in Rotherham, S63

im james im a 25year old business man with 10years of experience in home improvements im honest and ...

Latest review

Ricki T., S66
5th June 2021

Building work | Damp Proofing in Rotherham

Excellent service and work.

TRADITIONAL ROOFING

Based: in London, HA0

TRADITIONAL ROOFING is based in London and have 4 positive reviews

Latest review

Amanda C., EN1
15th February 2017

Building work | Damp Proofing in Enfield

Patrick arrived promptly , he is a polite and courteous tradesman, very professional....

THE HIVE EFFICIENCY GROUP

Based: in Birmingham, B16

The Hive Efficiency Group supply and install a range of products to both residential and commercial ...

Latest review

Katherine L., OX17
4th March 2016

Building work | Damp Proofing in Banbury

Professional. Helpful.

SEAL

Based: in Chichester, PO209EA

SEAL is based in Chichester and have 4 positive reviews

Latest review

Rebecca T., SN11
14th October 2015

Building work | Damp Proofing in Calne

Good service

TONBRIDGE CONSTRUCTION AND DAMP-PROOFING

Based: in Tonbridge, TN9

TONBRIDGE CONSTRUCTION AND DAMP-PROOFING is based in Tonbridge and have 1 positive reviews

Latest review

Andy L., TN12
3rd April 2015

Building work | Damp Proofing in Tonbridge

Very personable, honest and professional

Aquapol Scotland.

Based: in Edinburgh, EH1

Aquapol Scotland. is based in Edinburgh and have 1 positive reviews

Latest review

Pamela M., G67
7th March 2015

Building work | Damp Proofing in Cumbernauld

Aquapol are the only ones that have been in touch in

Rated Local damp proofing specialists

Weatherdry Insulation Ltd

4 review(s)
Based: in Tamworth, B79 7XH

We are a company that specialises in Damp Proofing & Insulation. We have a 100% success rate in resolving damp issues connected to RISING or PENETRATING damp. We offer a FREE, NO OBLIGATION damp survey and quotation .

JJS Pointing Company

2 review(s)
Based: in Rotherham, S63 7AF

im james im a 25year old business man with 10years of experience in home improvements im honest and reliable and wont be beat on any like for like quotation

HFAC Ltd

3 review(s)
Based: in Henley on thames, RG9 1AT

Proudly Serving Customers in Henley-on-Thames and Surrounding Areas in a 50-Mile Radius HFAC Ltd is a leading professional Damp proofing company based in Henley on Thames. We are an established name with over 40 years of experience in the trade. H...

THE HIVE EFFICIENCY GROUP

2 review(s)
Based: in Birmingham, B16 8LB

The Hive Efficiency Group supply and install a range of products to both residential and commercial properties, designed to assist in making them more energy efficient and maintenance free for many years to come. From thermally effiecient wall c...

Aquapol Scotland Ltd.

1 review(s)
Based: in Edinburgh, EH1 1DD

Aquapol Scotland Ltd. based in Edinburgh, offer services in Damp Proofing. They have an average rating of 4.5 from 1 review(s). See their latest 5 star review below

TONBRIDGE CONSTRUCTION AND DAMP-PROOFING

1 review(s)
Based: in Tonbridge, TN9 2YR

TONBRIDGE CONSTRUCTION AND DAMP-PROOFING based in Tonbridge, offer services in Damp Proofing. They have an average rating of 5 from 1 review(s). See their latest 5 star review below

SEAL

4 review(s)
Based: in Chichester, PO209EA

SEAL based in Chichester, offer services in Damp Proofing. They have an average rating of 4.875 from 4 review(s). See their latest 5 star review below

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