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Deal · Kent

Damp investigation after cavity insulation in Deal

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 Deal and the wider CT14 postcode district, and the price is confirmed before anyone visits.

Book a damp investigation in Deal

Covering Deal and the CT14 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 Deal properties

Deal sits in Kent, around 39 miles east of Maidstone. We work across the CT14 district, including nearby Dover, Ramsgate and Broadstairs.

We never cold-call in Deal or anywhere else, and we do not work with doorstep claims companies. Damp in an insulated Deal home is not always the insulation's fault, so the diagnosis comes before any extraction.

Local weather affects which walls can be filled. Much of Kent 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.

As for paperwork, if cavity wall insulation follows in Deal, 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 Deal

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

Guide prices for Deal

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.

What happens next for a Deal 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.

Damp investigation after cavity insulation in Deal: questions

How soon can you visit in Deal?

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.

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 cover Deal?

Yes. Deal and the CT14 postcode district are within our Kent coverage, along with nearby Dover and Ramsgate.

Do you work on rented homes in Deal?

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

Nearby towns

Book a damp investigation in Deal

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