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Acton · Greater London

Damp investigation after cavity insulation in Acton

For properties in Acton, a damp investigation starts with a clear price and ends with a written record of what was found and done. A damp investigation finds out why an insulated wall is showing damp or mould: rain getting in through defects, bridged or wet fill, debris in the cavity, a breached damp-proof course, or condensation.

Book a damp investigation in Acton

Covering Acton and the W3 district. Tell us about the property. We confirm the price before you book.

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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.

Damp investigation after cavity insulation for Acton properties

We cover Acton and the W3 postcode district, including nearby Chiswick, Shepherds Bush and Willesden. It is about 6 miles west of London.

Defects such as failed pointing, leaking gutters and bridged damp-proof courses are listed and priced separately for Acton properties, so you can choose who fixes them. We never cold-call in Acton or anywhere else, and we do not work with doorstep claims companies.

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.

As for paperwork, if cavity wall insulation follows in Acton, 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 you get

Moisture readings, borescope photos at the affected areas, an explanation of the likely cause and the options, from simple repairs to partial or full extraction, each priced.

What is included in Acton

  • Cause and options in writing
  • Moisture mapping inside
  • External defects check
  • Borescope at affected areas

Guide prices for Acton

Damp investigation after cavity insulation guide prices
Damp investigation after cavity insulation guide pricesGuide price
Damp investigation with borescope£295–£495

This work is not insulation, so it is normally standard-rated for VAT. Guide prices include VAT where it applies. 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 Acton:

  1. Tell us what is happening

    Postcode, property type and what you have noticed.

  2. Price agreed first

    We confirm the price before anyone visits.

  3. Visit and checks

    Photos and readings at the areas that matter.

  4. Findings in writing

    What we found and the options, each priced separately.

Last reviewed 19 October 2026.

Damp investigation after cavity insulation in Acton: questions

How much does a damp investigation cost in Acton?

Guide prices are shown on this page, and the price for your Acton property is confirmed before you book.

Do you cover Acton?

Yes. Acton and the W3 postcode district are within our Greater London coverage, along with nearby Chiswick and Shepherds Bush.

Do you cold-call in Acton?

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

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.

Nearby towns

Book a damp investigation in Acton

Priced before you book. Findings in writing. No cold calls.