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Redruth · Cornwall

Damp investigation after cavity insulation in Redruth

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 Redruth and the wider TR16 postcode district, and the price is confirmed before anyone visits.

Book a damp investigation in Redruth

Covering Redruth and the TR16 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 Redruth properties

Redruth sits in Cornwall, roughly 8 miles west of Truro. We work across the TR16 district, including nearby Camborne, Truro and Falmouth.

Damp in an insulated Redruth home is not always the insulation's fault, so the diagnosis comes before any extraction. If your Redruth installation has a guarantee, we check it first; the guarantee route may cover the work.

Every elevation is judged on its own exposure. Parts of Cornwall face some of the heaviest wind-driven rain in the UK, especially exposed coastal and upland sites. Here the survey is stricter: some walls suit only certain certified systems, and some should not be filled at all.

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

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

Guide prices for Redruth

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 Redruth:

  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.

Damp investigation after cavity insulation in Redruth: questions

Do you cold-call in Redruth?

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 a damp investigation in Redruth?

Damp investigation after cavity insulation is not insulation, so it is normally charged at the standard rate of VAT. The VAT treatment is confirmed on your quote.

How much does a damp investigation cost in Redruth?

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

How soon can you visit in Redruth?

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 Redruth

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