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Antrim · County Antrim

Existing insulation and guarantee check in Antrim

Antrim homeowners, buyers, landlords and agents can book an insulation and guarantee check with the price agreed first. An existing insulation check tells you whether a cavity is filled, what with, whether it looks dry and intact, and how to trace any guarantee.

Book an insulation check in Antrim

Covering Antrim and the BT41 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.

Existing insulation and guarantee check for Antrim properties

We cover Antrim and the BT41 postcode district, including nearby Ballymena, Newtownabbey and Belfast. It is around 16 miles north-west of Belfast.

The written result for your Antrim property is plain English: what we found, what it means and what, if anything, to do next. Buyers and sellers in Antrim often book this check when a survey report or EPC raises questions about the walls.

Wind-driven rain is the first thing the surveyor weighs up. 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.

For regulations, if cavity wall insulation follows in Antrim, 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.

Tracing a guarantee

Many cavity fills carry a 25-year guarantee from the Cavity Insulation Guarantee Agency (CIGA). CIGA can confirm whether a property is covered and can issue a duplicate guarantee for a fee; at the time of writing that fee is £60 including VAT, and proof of ownership is required.

What is included in Antrim

  • Short written report
  • Damp signs inside and out
  • Visual check of walls and patched holes
  • Borescope checks

Guide prices for Antrim

Existing insulation and guarantee check guide prices
Existing insulation and guarantee check guide pricesGuide price
Existing insulation and guarantee check£145–£245

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 an Antrim 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.

Existing insulation and guarantee check in Antrim: questions

How much does an insulation and guarantee check cost in Antrim?

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

Do you cold-call in Antrim?

No. We only come out when you have asked us to. If someone cold-calls offering free insulation, check before you agree to anything.

Do you cover Antrim?

Yes. Antrim and the BT41 postcode district are within our County Antrim coverage, along with nearby Ballymena and Newtownabbey.

How soon can you visit in Antrim?

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 an insulation check in Antrim

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