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Croydon · Greater London

Existing insulation and guarantee check in Croydon

Need an insulation and guarantee check in Croydon? You get the price first, then a visit, then the findings in plain English. 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 Croydon

Covering Croydon and the CR7 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 Croydon properties

Croydon sits in Greater London, around 9 miles south of London. We work across the CR7 district, including nearby South Croydon, Wallington and Carshalton.

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

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.

In terms of approvals, if cavity wall insulation follows in Croydon, 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 Croydon

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

Guide prices for Croydon

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 Croydon property:

  1. Get in touch

    Online, by phone or WhatsApp.

  2. Your price

    Confirmed in writing before you book.

  3. The visit

    Carried out at an agreed time, with photos of what we find.

  4. Your report

    Plain English, with any follow-on work quoted separately.

Last reviewed 19 October 2026.

Existing insulation and guarantee check in Croydon: questions

How much does an insulation and guarantee check cost in Croydon?

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

Do you work on rented homes in Croydon?

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

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.

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

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.

Nearby towns

Book an insulation check in Croydon

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