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West Sussex · England

Cavity wall suitability survey in West Sussex

A cavity wall survey checks whether your walls can safely be filled and with what. Our West Sussex coverage includes Crawley, Worthing, Bognor Regis and the towns around them.

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

Book a survey in West Sussex

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

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Cavity wall suitability survey across West Sussex

We cover 9 towns in West Sussex, including Crawley, Worthing, Bognor Regis, Littlehampton, Horsham and more.

Wind-driven rain is the first thing the surveyor weighs up. West Sussex has a mix of moderate and more exposed sites. Hilltop, coastal and west-facing walls take the brunt of wind-driven rain, so the survey records exposure for each elevation before a material is chosen.

A survey in West Sussex gives you facts before anyone drills: what the wall is, what is in the cavity and whether it is sound. The written result for your West Sussex property is plain English: what we found, what it means and what, if anything, to do next.

Building Regulations in England

Filling an existing cavity wall is notifiable building work in England. Either a building notice goes to building control before the work, or the installer self-certifies it through a government-approved competent person scheme such as CIGA's CWISC scheme. The insulation used must also be suitable for the wall it goes into, which is why the survey checks construction, condition and exposure first.

Sources: Planning Portal: cavity wall insulation and building regulations; CIGA: CWISC competent person scheme.

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 West Sussex

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 West Sussex 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 West Sussex: questions

Do you cover all of West Sussex?

Yes. We cover 9 towns across West Sussex, including Crawley, Worthing, Bognor Regis and Littlehampton, and the villages around them. Island and remote addresses are surveyed by arrangement.

Which building regulations route applies in West Sussex?

West Sussex is in England, so filling a cavity is notifiable building work and needs a building notice or competent-person self-certification. We confirm the route in writing on your quote.

Is my West Sussex home too exposed for cavity insulation?

West Sussex has a mix of moderate and more exposed sites, so each wall is judged on its own. The survey records the exposure of each wall before recommending a material, or recommending against filling.

Is there VAT on a cavity wall survey in West Sussex?

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.

Cavity wall suitability survey in nearby areas

Book a survey in West Sussex

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