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Newtown · Powys

Cavity wall suitability survey in Newtown

A cavity wall survey checks whether your walls can safely be filled and with what. In Newtown and the SY16 district the survey is free with an install quote, and you get the result in writing either way.

Book a survey in Newtown

Covering Newtown and the SY16 district. Free with an install quote; standalone reports are priced before you book.

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Cavity wall suitability survey for Newtown properties

Newtown sits in Powys. We work across the SY16 district, including nearby Welshpool and Llandrindod Wells.

The written result for your Newtown property is plain English: what we found, what it means and what, if anything, to do next. Where a Newtown wall shows cold patches or damp, the survey targets those areas first rather than sampling at random.

Local weather affects which walls can be filled. Parts of Powys 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.

In terms of approvals, in Newtown filling a cavity is notifiable work under the Building Regulations as they apply in Wales, usually self-certified through a competent person scheme.

Rules in Wales

Filling a cavity is notifiable work under the Building Regulations as they apply in Wales, usually self-certified through a competent person scheme if insulation work follows.

Sources: Welsh Government: building work competent person schemes; CIGA: CWISC competent person scheme.

What the surveyor checks

Wall construction and thickness at window reveals; cavity width and debris with a borescope; brickwork, pointing, render, sills, gutters and downpipes; signs of damp inside and out; air bricks and flues; joins with neighbours and extensions; and the exposure of each elevation to wind-driven rain.

What is included in Newtown

  • Exposure assessment by elevation
  • Fixed install price where suitable
  • Photo-backed written result
  • Repairs list where needed

Guide prices for Newtown

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 Newtown:

  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 Newtown: questions

Do you work on rented homes in Newtown?

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

Which building regulations route applies in Newtown?

Newtown 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.

How soon can you visit in Newtown?

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.

Is the survey free in Newtown?

Yes when it is for an install quote. Standalone reports for Newtown buyers, sellers or landlords who do not need an install quote are priced before you book.

Nearby towns

Book a survey in Newtown

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