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Gwent · Wales

Cavity wall suitability survey in Gwent

We survey cavity walls throughout Gwent, from Newport to Cwmbran and Pontypool, with a written result every time. A cavity wall survey checks whether your walls can safely be filled and with what.

Surveyor measuring the wall thickness at a window reveal of a brick house

Book a survey in Gwent

Free with an install quote; standalone reports are priced before you book.

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We use your details only to answer this enquiry and arrange your visit, sharing them only with the registered installer we appoint for your job and the providers named in our privacy notice. No marketing lists, no cold calls.

Cavity wall suitability survey across Gwent

We cover 6 towns in Gwent, including Newport, Cwmbran, Pontypool, Ebbw Vale, Caerphilly and more.

Before any material is chosen, exposure is checked. Parts of Gwent face some of the heaviest wind-driven rain in the UK, especially exposed coastal and upland sites. Here the survey is stricter: some walls suit only certain certified systems, and some should not be filled at all.

The written result for your Gwent property is plain English: what we found, what it means and what, if anything, to do next. Buyers and sellers in Gwent often book this check when a survey report or EPC raises questions about the walls.

Building Regulations in Wales

In Wales, filling an existing cavity is also notifiable building work under the Building Regulations as they apply in Wales. A registered installer normally self-certifies it through a competent person scheme; otherwise a building notice goes to your council's building control before work starts. Welsh rules can differ from England's, so the notification route is confirmed in writing on your quote.

Sources: Welsh Government: building work competent person schemes; CIGA: CWISC competent person scheme; Welsh Government: issues arising from cavity wall insulation installations.

What you get

A clear result: suitable, suitable after repairs, or not suitable. Where repairs are needed first, they are listed and priced separately so you can choose who does them. The survey is free when you are getting an install quote.

What is included

  • Photo-backed written result
  • Cavity width and debris check
  • Exposure assessment by elevation
  • Repairs list where needed
  • Fixed install price where suitable

Cavity wall suitability survey prices in Gwent

Cavity wall suitability survey guide prices
Cavity wall suitability survey guide pricesGuide price
Suitability survey with an install quoteFree
Standalone survey report (no install quote)£145–£245

The survey is free with an install quote. A standalone report is not insulation, so it is normally standard-rated for VAT; guide prices include VAT. Guide ranges only: the fixed price is confirmed in writing before any work starts, and anything that could not be seen at survey is agreed with you first.

What happens next for a Gwent property:

  1. Tell us about the property

    Postcode, property type and why you need the survey.

  2. Survey visit

    Walls, cavity, condition and exposure checked and photographed.

  3. Written result

    Suitable, suitable after repairs, or not suitable.

  4. Fixed price if you want work

    The survey is free when it is for an install quote.

Last reviewed 19 October 2026.

Cavity wall suitability survey in Gwent: questions

Do you cover all of Gwent?

Yes. We cover 6 towns across Gwent, including Newport, Cwmbran, Pontypool and Ebbw Vale, and the villages around them. Island and remote addresses are surveyed by arrangement.

Do you work on rented homes in Gwent?

Yes. Landlords and agents in Gwent can book batch visits, and work is arranged around tenants.

Will you tell me if I do not need any work?

Yes. If the findings show nothing needs doing, or a cheaper fix such as clearing a gutter will do, we say so.

How soon can you visit in Gwent?

We arrange dates when you get in touch. Availability varies through the year, so we give you real dates rather than a promise on the website.

Cavity wall suitability survey in nearby areas

Book a survey in Gwent

Free with an install quote. Written result for every wall.