Damp Proofing in Middlesex

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Damp Proofing in Middlesex

Extensions such as garage conversions will often require additional damp proofing to be installed through the conversion, as the pre-existing garage typically 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. Moreover, the roof of the garage conversion will require water proofing. The damp proofing of the floor of the garage conversion will usually be achieved by by using a damp proof membrane. This membrane can 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 if the floor will be a solid or a floating floor. In a few garages, the walls have already been damp proofed, but this may need to be improved as part of the conversion to be able to adhere to 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 can be performed by either applying damp proof membranes, waterproof rendering, or cavity insulation, depending on the type of walls that are already 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 incorporates appropriate damp proofing methods.

Average Damp proofing cost in Middlesex

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 Middlesex, as reported by local LeadsDoWork members.

Damp proofing installation cost in Middlesex 2026

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

Middlesex

Middlesex can be found on the outskirts of Greater London and is amongst England's 39 traditional counties. It's the second smallest by area but still features a population more than two million. Even with a decrease in population right after the Second World War, regeneration assisted the area become great once more for the duration of the 1960s. Consequently, there is lots of houses post World War Two, all requiring upgrading to keep value and aesthetic appeal in the Middlesex County. For any property improvements you're thinking about, only use vetted specialists in your region to ensure high quality.

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Damp proofing pros in Middlesex

Seal

4 review(s)
Based: in Chichester, PO209EA

Latest review

Sara W., RH15
16th January 2016
5

Damp Proofing in Burgess Hill

Still not had the quote sent to me :-(

Similar Customer Enquiries for Damp proofing in Middlesex

11 Oct

Damp Proofing

Guildford - GU4

Enquiry from: Jay M

Start Date: Immediate

Brick wall crack fixing, damp proof protection. Conservatory door fixing due to the clay soil movement

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10 Sep

Damp Proofing

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

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08 Sep

Damp Proofing

Slough - SL1

Enquiry from: Richard K

Start Date: Immediate

I need a damp and timber report carried out

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14 Aug

Damp Proofing

Leatherhead - KT22

Enquiry from: Arianna A

Start Date: Immediate

Quote for a 7.6 sqm (82 sq ft) cellar

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17 Jul

Damp Proofing

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

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06 Jul

Damp Proofing

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

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17 Jun

Damp Proofing

Pinner - HA5

Enquiry from: Kiran M

Start Date: Immediate

Damp treatment for bedroom

Property: semi detached

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14 Jun

Damp Proofing

London - W3

Enquiry from: Chris R

Start Date: Immediate

Front of house approximately 6M fix the damp proofing externally. Red brick 1920s terraced proofing

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11 Jun

Damp Proofing

Ashford - TW15

Enquiry from: Krishna A

Start Date: Immediate

To check whether the wall is damp or not

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30 May

Damp Proofing

Pinner - HA5

Enquiry from: Kiran M

Start Date: Immediate

Damp wall in daughter’s bedroom. Find and fix the issue

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26 Apr

Damp Proofing

Harrow - HA3

Enquiry from: Mukund V

Start Date: Immediate

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

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15 Apr

Damp Proofing

London - SW7

Enquiry from: Harriet S

Start Date: Immediate

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

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10 Apr

Damp Proofing

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

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05 Apr

Damp Proofing

Maidenhead - SL6

Enquiry from: Jennean A

Start Date: Immediate

We have signs of damp in 2 xbedrooms and can't understand why

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11 Mar

Damp Proofing

London - SW16

Enquiry from: Aamir R

Start Date: Immediate

My bedroom roof got damp marks. Need to fix that

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02 Mar

Damp Proofing

London - SW16

Enquiry from: Cam I

Start Date: Immediate

Damp Proofing enquiry

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16 Feb

Damp Proofing

Epsom - KT19

Enquiry from: Peter M

Start Date: Immediate

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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11 Oct

Damp Proofing

Epsom - KT17

Enquiry from: Carmel L

Start Date: Immediate

Have some damp around the chimney breast in my dining room

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03 Oct

Damp Proofing

Iver - SL0

Enquiry from: Levina M

Start Date: Immediate

We do not own this house currently; however are imminently exchanging on this property, we are requesting 2 quotes for each of the areas damp has been identified in the survey report. There is unlikel

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29 Oct

Damp Proofing

Ashford - TW15

Enquiry from: Marilyn T

Start Date: Immediate

I have a patch of slightly wet wall, I think the DPC has been damaged after gas fitter fitted gas pipe along the external wall where the wetness has appeared inside as this wetness, I don't think, was

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FAQs

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 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 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.

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Overall rating:


Middlesex Damp proofing pros are rated 4.1 out of 5 on average: 4 rated pros, 8 reviews, of 36 pros covering the area.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Damp proofing projects that have been connected with Damp proofing pros to help them. All Damp proofing contractors All Middlesex Damp proofing contractors

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