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Hayes · Greater London

Cavity wall suitability survey in Hayes

A cavity wall survey checks whether your walls can safely be filled and with what. In Hayes and the UB3 district the survey is free with an install quote, and you get the result in writing either way.

Book a survey in Hayes

Covering Hayes and the UB3 district. Free with an install quote; standalone reports are priced before you book.

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Cavity wall suitability survey for Hayes properties

If your property is in Hayes or the UB3 district or nearby Southall, Heston and Greenford, it is within our Greater London coverage. It is roughly 13 miles west of London.

Where a Hayes wall shows cold patches or damp, the survey targets those areas first rather than sampling at random. Every inspection point in Hayes is photographed and logged, so you have a record to show a buyer, lender or contractor.

Local weather affects which walls can be filled. Much of Greater London sits in the more sheltered driving-rain zones of the UK, which widens the choice of fill. Exposed elevations, coastal sites and high ground still get checked wall by wall.

In terms of approvals, in Hayes filling a cavity is notifiable building work and needs a building notice or competent-person self-certification.

Rules in England

Filling a cavity is notifiable building work and needs a building notice or competent-person self-certification if insulation work follows.

Sources: Planning Portal: cavity wall insulation and building regulations; 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 Hayes

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

Guide prices for Hayes

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.

The steps for a cavity wall survey in Hayes:

  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 Hayes: questions

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.

Do you work on rented homes in Hayes?

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

Which building regulations route applies in Hayes?

Hayes 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 there VAT on a cavity wall survey in Hayes?

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.

Nearby towns

Book a survey in Hayes

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