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Bow · Greater London

Damp investigation after cavity insulation in Bow

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

Book a damp investigation 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.

Damp investigation after cavity insulation for Bow properties

If your property is in Bow or the E3 district or nearby Stratford, Canary Wharf and Canning Town, it is within our Greater London coverage. It is roughly 5 miles east of London.

If your Bow installation has a guarantee, we check it first; the guarantee route may cover the work. Where a Bow wall does need work, bricks are lifted and rebuilt in matching mortar, and the cavity is checked with a camera before it is closed up.

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 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.

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 Bow

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

Guide prices for Bow

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.

The steps for a damp investigation in Bow:

  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 Bow: questions

Do you cover Bow?

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

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.

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.

How soon can you visit in Bow?

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 damp investigation in Bow

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