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Eltham · Greater London

Cavity wall suitability survey in Eltham

Eltham properties get a written survey result: suitable, suitable after repairs, or not suitable. A cavity wall survey checks whether your walls can safely be filled and with what.

Book a survey in Eltham

Covering Eltham and the SE9 district. Free with an install quote; standalone reports are priced before you book.

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Cavity wall suitability survey for Eltham properties

If your property is in Eltham or the SE9 district or nearby Blackheath, Welling and Catford, it is within our Greater London coverage. It is about 9 miles south-east of London.

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

Before any material is chosen, exposure is checked. 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.

For regulations, in Eltham 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 Eltham

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

Guide prices for Eltham

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 an Eltham 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 Eltham: questions

Is the survey free in Eltham?

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

Is my Eltham home too exposed for cavity insulation?

Much of Greater London is in the more sheltered driving-rain zones, but exposed and coastal sites are still checked carefully. The survey records the exposure of each wall before recommending a material, or recommending against filling.

Do you cold-call in Eltham?

No. We only come out when you have asked us to. If someone cold-calls offering free insulation, check before you agree to anything.

How soon can you visit in Eltham?

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.

Nearby towns

Book a survey in Eltham

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