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County Armagh · Northern Ireland

Damp investigation after cavity insulation in County Armagh

Damp investigation after cavity insulation across County Armagh, priced before you book, with the findings written up and photographed. 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.

Moisture meter held against a damp, mould-spotted corner of an external wall indoors

Book a damp investigation in County Armagh

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Damp investigation after cavity insulation across County Armagh

We cover 4 towns in County Armagh: Craigavon, Portadown, Armagh and Lurgan.

Local weather affects which walls can be filled. Parts of County Armagh 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.

Damp in an insulated County Armagh home is not always the insulation's fault, so the diagnosis comes before any extraction. Where a County Armagh 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.

Building control in Northern Ireland

In Northern Ireland, inserting insulation into an existing cavity wall needs a building control application to your council before the work. We make sure the application route is agreed and confirmed in writing before any drilling starts.

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

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

Damp investigation after cavity insulation prices in County Armagh

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.

How it works in County Armagh:

  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 County Armagh: questions

Do you cover all of County Armagh?

Yes. We cover 4 towns across County Armagh, including Craigavon, Portadown, Armagh and Lurgan, and the villages around them. Island and remote addresses are surveyed by arrangement.

How much does a damp investigation cost in County Armagh?

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

Is there VAT on a damp investigation in County Armagh?

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 soon can you visit in County Armagh?

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.

Damp investigation after cavity insulation in nearby areas

Book a damp investigation in County Armagh

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