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Bow · Greater London

Existing insulation and guarantee check in Bow

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. We cover Bow and the wider E3 postcode district, and the price is confirmed before anyone visits.

Book an insulation check in Bow

Covering Bow and the E3 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 Bow properties

Our Greater London coverage takes in Bow (E3) and nearby Stratford, Canary Wharf and Canning Town. It is around 5 miles east of London.

The written result for your Bow property is plain English: what we found, what it means and what, if anything, to do next. A survey in Bow gives you facts before anyone drills: what the wall is, what is in the cavity and whether it is sound.

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 Bow, 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.

How to tell if a house already has cavity insulation

Look for a regular pattern of small patched holes in the mortar joints, often about a metre apart. Check the EPC, which may say 'filled cavity'. Ask the seller for a guarantee. The reliable answer is a borescope check, because patched holes can be from a fill that was later removed and EPCs are sometimes wrong.

What is included in Bow

  • Damp signs inside and out
  • Visual check of walls and patched holes
  • Borescope checks
  • Short written report

Guide prices for Bow

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 Bow 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 Bow: questions

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

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 Bow?

Yes. Bow and the E3 postcode district are within our Greater London coverage, along with nearby Stratford and Canary Wharf.

What will I get from an insulation and guarantee check in Bow?

A visit at an agreed price, photos of what we find, and a written summary in plain English. Any follow-on work is priced separately so you can choose who does it.

Do you cold-call in Bow?

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

Nearby towns

Book an insulation check in Bow

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