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Carrickfergus · County Antrim

Damp investigation after cavity insulation in Carrickfergus

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

Book a damp investigation in Carrickfergus

Covering Carrickfergus and the BT38 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 Carrickfergus properties

If your property is in Carrickfergus or the BT38 district or nearby Newtownabbey, Larne and Belfast, it is within our County Antrim coverage. It is around 9 miles north-east of Belfast.

Defects such as failed pointing, leaking gutters and bridged damp-proof courses are listed and priced separately for Carrickfergus properties, so you can choose who fixes them. If your Carrickfergus installation has a guarantee, we check it first; the guarantee route may cover the work.

Before any material is chosen, exposure is checked. Parts of County Antrim 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 Carrickfergus, inserting cavity wall insulation needs a building control application to the council before work starts.

Rules in Northern Ireland

Inserting cavity wall insulation needs a building control application to the council before work starts if insulation work follows.

Sources: Building Control NI: frequently asked questions; Belfast City Council: what are the building regulations.

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 Carrickfergus

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

Guide prices for Carrickfergus

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 Carrickfergus:

  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 Carrickfergus: questions

Do you cold-call in Carrickfergus?

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 Carrickfergus?

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.

Do you work on rented homes in Carrickfergus?

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

How much does a damp investigation cost in Carrickfergus?

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

Nearby towns

Book a damp investigation in Carrickfergus

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