Damp Proofing in Gwent

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Damp Proofing in Gwent

Extensions such as garage conversions will usually require supplementary damp proofing to be installed during the conversion, as the existing garage will typically have a single skin design for walls and floors, which was not built to comply with building regulations for habitable rooms. This damp proofing will have to be put into walls and floors. Additionally, the roofing of the garage conversion will need water proofing. The damp proofing for the floor of the garage conversion will in most cases be achieved by utilising 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 pre-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 a few garages, the walls have already been damp proofed, but this may have to be improved as part of the conversion in order to meet current building regulations. The walls will need to be damp proofed to be able to protect the brickwork from rotting slowly as moisture sets in. This is done by either applying 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 comply with, therefore is it necessary to ensure that your garage conversion incorporates suitable damp proofing methods.

Average Damp proofing cost in Gwent

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 2025

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 Gwent, as reported by local LeadsDoWork members.

Damp proofing installation cost in Gwent 2025

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

Damp proofing searches in May 2025

Damp proofing Projects in Gwent in April 2025

8,067

Requests for quotations in Gwent in April 2025

0

Requests for Damp proofing quotations in Gwent in April 2025. 0% change from March 2025.

0

Requests for Damp proofing quotations in Wales in April 2025. 0% change from March 2025.

Source: Numbers calculated based on the search volumes in major search engines

Damp proofing searches in cities and towns near Gwent April 2025

Damp proofing near you

Gwent

The preserved region of Gwent in south east Wales has the largest population in the country with more than 550,000 residents. Under the Local Government Act in 1994, Gwent was abolished but continues to be for ceremonial purposes. At that time Gwent was divided into several regions, including Monmouthshire and the city of Newport. For your household improvements, make sure you only use respected companies in Gwent to ensure a high quality of work.

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Similar Customer Enquiries for Damp proofing in Gwent

22 Apr

Building work | Damp Proofing

Newport - NP11

Enquiry from: Aneta M

Start Date: Immediate

Diagnosing damp problem , cost for treatment

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04 Feb

Building work | Damp Proofing

Chepstow - NP16

Enquiry from: Mike M

Start Date: Immediate

Over the past couple of months, I have noticed rising damp appearing from the floor, particularly in the rear garden area under the decking. I have attached photos of the iwalls for reference. I wo...

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28 Jan

Building work | Damp Proofing

Ebbw Vale - NP23

Enquiry from: Oliver W

Start Date: Immediate

Hi, I have recently purchased a property and during the building inspection wood destroying fungi was noted to the timbers below the rear pitched valleys. The attack appears to be wet rot, Fibroporia ...

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17 Jan

Building work | Damp Proofing

Blackwood - NP12

Enquiry from: Adrian M

Start Date: Immediate

I have a lot of damp inside the house on the front and pine end

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01 Jan

Building work | Damp Proofing

Tredegar - NP22

Enquiry from: Jason M

Start Date: Immediate

Penetrating damp on the weather facing side of the house affecting 2 floors

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17 Dec

Building work | Damp Proofing

Ebbw Vale - NP23

Enquiry from: Jacqui M

Start Date: Immediate

Raising damp in on back wall and chimney breast in dining room.

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17 Oct

Building work | Damp Proofing

Newport - NP19

Enquiry from: Paul C

Start Date: Immediate

it’s one of my rental properties that seems to have damp in the property, possibly a damp course, it’s in newport the address 64 bristol st, newport it’s maindee area are you the property owner:...

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11 Oct

Building work | Damp Proofing

Newport - NP11

Enquiry from: Emma W

Start Date: Immediate

Damp on most lower walls of the house lower and ceilings upstairs

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09 Oct

Building work | Damp Proofing

Newport - NP11

Enquiry from: Michael B

Start Date: Immediate

Just going through purchase and need to understand extent of damp and cost of repair.

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06 Oct

Building work | Damp Proofing

Newport - NP11

Enquiry from: Colin M

Start Date: Immediate

We have an area of wall that appears to be showing signs of damp and we're not sure what we can do about it. Would it be possible to have the site inspected?

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24 Sep

Building work | Damp Proofing

Newport - NP19

Enquiry from: Kevin P

Start Date: Immediate

Hi, I've got what I think is penetration damp appearing under or close to windows. It's not affecting large areas but the paint/plaster is now peeling. I've tried drying and treating myself but the...

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06 Aug

Building work | Damp Proofing

Abertillery - NP13

Enquiry from: Sally D

Start Date: Immediate

Don't know where the damp is coming from, what type of damp but the survey picked it up on purchase of the house

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05 Aug

Building work | Damp Proofing

Monmouth - NP25

Enquiry from: Tim G

Start Date: Immediate

Hi there, We have just had a level 3 RICS survey completed on a property we are looking to purchase. There are 2 areas that we believe you may be able to quote for do the works necessary for us, in...

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24 Jul

Building work | Damp Proofing

Cwmbran - NP44

Enquiry from: Susannah K

Start Date: Immediate

Looks like the damp proof membrane got damaged when new patio door installed

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16 Jul

Building work | Damp Proofing

Newport - NP11

Enquiry from: Bobby J

Start Date: Immediate

Damp proofing Lead

Got rising damp coming from wall connecting room to kitchen extension.

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01 Jul

Building work | Damp Proofing

Pontypool - NP4

Enquiry from: Lesle C

Start Date: Immediate

I have damp on my lounge wall in a detached house and I believe this is coming from neighbours overgrown bushes. I would like a professional opinion and to understand the work that is needed please.

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27 May

Building work | Damp Proofing

Cwmbran - NP44

Enquiry from: Debra R

Start Date: Immediate

I have recently had a survey which advised contacting a damp specialist. I am unsure if this is just condensation as the survey did not confirm anything.

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25 Apr

Building work | Damp Proofing

Chepstow - NP16

Enquiry from: Allison H

Start Date: Immediate

Damp proofing Lead Damp proofing Lead Damp proofing Lead Damp proofing Lead

we have a lodge grade 2 which has damp coming through on a corner of one internal wall, kind of in the middle of the wall and towards the window would someone be able to come and have a look at it for...

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23 Apr

Building work | Damp Proofing

Monmouth - NP25

Enquiry from: Neal K

Start Date: Immediate

In the process of a house purchase and have noticed large areas of damp in an area of an en suite in a basement extension. Would like to see if any idea of the extent of the damp is, if there is signi...

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19 Apr

Building work | Damp Proofing

Tredegar - NP22

Enquiry from: EDWIN O

Start Date: Immediate

Single skin wall on ground floor bathroom starting to show damp

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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.

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 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.

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Overall rating:


Gwent Damp proofing installers are rated 4.9 out of 5 based on 2 reviews of 22 pros.
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 Gwent Damp proofing contractors

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