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Southampton · Hampshire

Damp investigation after cavity insulation in Southampton

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. In Southampton the visit is priced up front, and any follow-on work is quoted separately so you can choose.

Book a damp investigation in Southampton

Covering Southampton and the SO14 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 Southampton properties

Southampton is among the towns we cover in Hampshire, alongside Hythe, Totton and Eastleigh. Southampton is one of the main towns we cover in Hampshire.

Where a Southampton 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. We never cold-call in Southampton or anywhere else, and we do not work with doorstep claims companies.

Every elevation is judged on its own exposure. Hampshire has a mix of moderate and more exposed sites. Hilltop, coastal and west-facing walls take the brunt of wind-driven rain, so the survey records exposure for each elevation before a material is chosen.

On the rules side, if cavity wall insulation follows in Southampton, 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 Southampton

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

Guide prices for Southampton

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.

From enquiry to finish in Southampton:

  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 Southampton: questions

How soon can you visit in Southampton?

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 Southampton?

Yes. Southampton and the SO14 postcode district are within our Hampshire coverage, along with nearby Hythe and Totton.

Do you cold-call in Southampton?

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 a damp investigation in Southampton

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