0800 088 6248
CavityWallInsulationUKCAVITYWALLINSULATIONUK.CO.UK
Cavity wall insulationCavity wall suitability surveyCavity wall insulation removalCavity insulation top-upDamp investigation after cavity insulationBonded polystyrene bead insulationBlown mineral wool insulationParty wall cavity insulationBorescope cavity inspectionCavity wall insulation for landlordsGrant and funding checkLoft insulation
Clwyd · Wales

Cavity wall suitability survey in Clwyd

A cavity wall survey checks whether your walls can safely be filled and with what. Our Clwyd coverage includes Wrexham, Buckley, Deeside and the towns around them.

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

Book a survey in Clwyd

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

Enter a UK postcode.
Choose a service.
Enter your name.
Enter a phone number with at least 10 digits.
Enter a valid email address.

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 Clwyd

We cover 8 towns in Clwyd, including Wrexham, Buckley, Deeside, Colwyn Bay, Flint and more.

Every elevation is judged on its own exposure. Parts of Clwyd 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.

Buyers and sellers in Clwyd often book this check when a survey report or EPC raises questions about the walls. Every inspection point in Clwyd is photographed and logged, so you have a record to show a buyer, lender or contractor.

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 Clwyd

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.

How it works in Clwyd:

  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 Clwyd: questions

Do you cover all of Clwyd?

Yes. We cover 8 towns across Clwyd, including Wrexham, Buckley, Deeside and Colwyn Bay, and the villages around them. Island and remote addresses are surveyed by arrangement.

Is there VAT on a cavity wall survey in Clwyd?

The survey is free when it is for an install quote. A standalone survey report is not insulation, so it is normally standard-rated for VAT, and the price you are quoted includes it.

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.

Which building regulations route applies in Clwyd?

Clwyd is in Wales, so filling a cavity is notifiable work under the Building Regulations as they apply in Wales, usually self-certified through a competent person scheme. We confirm the route in writing on your quote.

Cavity wall suitability survey in nearby areas

Book a survey in Clwyd

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