Damp Proofing in Monmouth

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Damp Proofing in Monmouth

Extensions including garage conversions will often require supplementary damp proofing to be added during the conversion, as the pre-existing garage will often have a single skin design for walls and floors, which was not designed to conform to building regulations for habitable rooms. This damp proofing will need to be added to walls and floors. Furthermore, the roofing of the garage conversion will require water proofing. The damp proofing of the floor of the garage conversion will usually 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 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 will have already been damp proofed, but this may need to be updated 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 safeguard 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 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 make sure that your garage conversion incorporates appropriate damp proofing methods.

Average Damp proofing cost in Monmouth

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 Monmouth, as reported by local LeadsDoWork members.

Damp proofing installation cost in Monmouth 2026

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

Damp proofing searches in June 2026

Damp proofing Projects in Monmouth in May 2026

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Requests for quotations in Monmouth in May 2026

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Requests for Damp proofing quotations in Monmouth in May 2026. 0% change from April 2026.

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Requests for Damp proofing quotations in Gwent in May 2026. 0% change from April 2026.

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

Damp proofing searches in cities and towns near Monmouth May 2026

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Monmouth

Monmouth is the historical county town of Monmouthshire in Wales and additionally a community. Positioned where the River Monnow signs up with the River Wye, simply 2 miles (3.2 kilometres) of the boundary with England. The community is 30 miles (48 km) northeast of Cardiff, and 113 miles (182 kilometres) west of London. It is within the Monmouthshire regional authority, as well as the legislative constituency of Monmouth. Monmouth's population in the 2011 census was 10,508, rising from 8,877 in 2001. The community was the site of a little Roman ft, Blestium, and also came to be established after the Normans built a castle here after 1067. Its medieval rock gated bridge is the just one of its kind remaining in Britain. The castle later on came into the possession of the House of Lancaster, as well as was the native home of King Henry V in 1387. In 1536, it ended up being the county town of Monmouthshire. A market town and an emphasis of instructional and social tasks for the surrounding rural area, Monmouth has ended up being a tourism centre at the heart of the Wye Valley.

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Similar Customer Enquiries for Damp proofing in Monmouth

18 Oct

Building work | Damp Proofing

Monmouth - NP25

Enquiry from: Beth C

Start Date: Immediate

Assess damp and cause and advise what intervention is required

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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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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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01 Feb

Building work | Damp Proofing

Monmouth - NP25

Enquiry from: Beth C

Start Date: Immediate

Damp Surveys / Inspections to identify what is causing damp. Damp proof if needed

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06 Feb

Building work | Damp Proofing

Monmouth - NP25

Enquiry from: Glynis G

Start Date: Immediate

i am buying the above property. i have had a full building survey and the surveyor has found rising damp. i would like a quote for the necessary remedial work. access would need to be arranged with ar...

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08 Sep

Building work | Damp Proofing

Monmouth - NP25

Enquiry from: Vicky G

Start Date: Immediate

we have a wall on a chimney breast that has hygroscopic salts coming through and we believe we will need treatment to the interior wall and the external gable end, potentially are you the property o...

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03 Dec

Building work | Damp Proofing

Monmouth - NP25

Enquiry from: Winston L

Start Date: Immediate

i think it’s rising damp, there’s a tide mark above the skirting boards are you the property owner: owner of the property how many rooms do you need damp proofing: 1-2 rooms property type: semi de...

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10 Dec

Building work | Damp Proofing

Crickhowell - NP7

Enquiry from: Will H

Start Date: Immediate

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

mushrooms appearing on ceiling for some months.small area in the toilet. rain last night has allowed a lot of water to drip over a large area are you the property owner: owner of the property how man...

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16 Nov

Building work | Damp Proofing

Chepstow - NP16

Enquiry from: Rob P

Start Date: Immediate

Hello, Our surveyor recommended getting an invasive damp proofing inspection. Would you be able to do this and how much would it cost? Many thanks, Rob

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08 Sep

Building work | Damp Proofing

Chepstow - NP16

Enquiry from: Caroline B

Start Date: Immediate

We have recently moved into the property and noticed that at the base of some of the walls on the ground floor there are some marks which we think might be due to damp /condensation and would like som...

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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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26 Jun

Building work | Damp Proofing

Drybrook, Longhope, Lydbrook, Mitcheldean, Ruardean - GL17

Enquiry from: Jane M

Start Date: Immediate

I have what I think is rising damp in the lounge on at least 2 wall. It is a detached stone built construction built in1800s.

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25 Jun

Building work | Damp Proofing

Coleford - GL16

Enquiry from: Roger M

Start Date: Immediate

To look at solutions for damp around the door and around the house

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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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03 Jan

Building work | Damp Proofing

Chepstow - NP16

Enquiry from: Christina G

Start Date: Immediate

Condensation and black mould appearing on upstairs windows and window ledge When we moved in the homebuyers report did warn that there was insufficient ventilation *** floor

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06 Nov

Building work | Damp Proofing

Ross-on-Wye - HR9

Enquiry from: Brian C

Start Date: Immediate

Damp patches in 2 bedrooms (outside walls) Also blown plasterwork. House dated from 1832 , therefore solid walls. It has been reroofed and render repainted

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06 Nov

Building work | Damp Proofing

Ross-on-Wye - HR9

Enquiry from: Barbara S

Start Date: Immediate

I would like an expert to come and help with my damp problem , explain why it’s happening tell me what has to be done and give a quote

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03 Nov

Building work | Damp Proofing

Cinderford, Newnham, Westbury-on-Severn - GL14

Enquiry from: Martin J

Start Date: Immediate

Damp proofing Lead Damp proofing Lead Damp proofing Lead

We have moved into an old house and one of our room has a damp smell with bubbling on some of the walls. There is other damp in the property but this is our priority and it is likely to be an ongo...

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24 Aug

Building work | Damp Proofing

Chepstow - NP16

Enquiry from: Helen S

Start Date: Immediate

In the process of purchasing property. RICS survey has shown possible rising damp on the ground floor, especially by the front door. Would like this fully assessed with costs and options please. Also...

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09 Aug

Building work | Damp Proofing

Crickhowell - NP7

Enquiry from: Jeanne M

Start Date: Immediate

Suspected rising damp on outside wall of front reception room . Property for sale , we are looking to buy but need quote following building survey. Any contractors would need to obtain keys from Parry...

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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.

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.

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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