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Richmond · Greater London

Existing insulation and guarantee check in Richmond

For properties in Richmond, an insulation and guarantee check starts with a clear price and ends with a written record of what was found and done. An existing insulation check tells you whether a cavity is filled, what with, whether it looks dry and intact, and how to trace any guarantee.

Book an insulation check in Richmond

Covering Richmond and the TW9 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.

Existing insulation and guarantee check for Richmond properties

If your property is in Richmond or the TW9 district or nearby Isleworth, Hounslow and Barnes, it is within our Greater London coverage. It is about 9 miles south-west of London.

Every inspection point in Richmond is photographed and logged, so you have a record to show a buyer, lender or contractor. The written result for your Richmond property is plain English: what we found, what it means and what, if anything, to do next.

Every elevation is judged on its own exposure. 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, if cavity wall insulation follows in Richmond, 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.

Tracing a guarantee

Many cavity fills carry a 25-year guarantee from the Cavity Insulation Guarantee Agency (CIGA). CIGA can confirm whether a property is covered and can issue a duplicate guarantee for a fee; at the time of writing that fee is £60 including VAT, and proof of ownership is required.

What is included in Richmond

  • Damp signs inside and out
  • Visual check of walls and patched holes
  • Borescope checks
  • Guidance on tracing a guarantee

Guide prices for Richmond

Existing insulation and guarantee check guide prices
Existing insulation and guarantee check guide pricesGuide price
Existing insulation and guarantee check£145–£245

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.

What happens next for a Richmond property:

  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.

Existing insulation and guarantee check in Richmond: questions

How soon can you visit in Richmond?

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.

Do you cold-call in Richmond?

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

Is there VAT on an insulation and guarantee check in Richmond?

Existing insulation and guarantee check is not insulation, so it is normally charged at the standard rate of VAT. The VAT treatment is confirmed on your quote.

Do you cover Richmond?

Yes. Richmond and the TW9 postcode district are within our Greater London coverage, along with nearby Isleworth and Hounslow.

Nearby towns

Book an insulation check in Richmond

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