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County Antrim · Northern Ireland

Existing insulation and guarantee check in County Antrim

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. Our County Antrim coverage includes Belfast, Lisburn, Newtownabbey and the towns around them.

Old cavity insulation drill holes, filled with mortar, spaced across a brick wall

Book an insulation check in County Antrim

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 across County Antrim

We cover 7 towns in County Antrim, including Belfast, Lisburn, Newtownabbey, Carrickfergus, Ballymena and more.

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.

The written result for your County Antrim property is plain English: what we found, what it means and what, if anything, to do next. A survey in County Antrim gives you facts before anyone drills: what the wall is, what is in the cavity and whether it is sound.

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.

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

  • Borescope checks
  • Visual check of walls and patched holes
  • Damp signs inside and out
  • Guidance on tracing a guarantee
  • Short written report

Existing insulation and guarantee check prices in County 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.

The steps for an insulation and guarantee check in County Antrim:

  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.

Existing insulation and guarantee check in County Antrim: questions

Do you cover all of County Antrim?

Yes. We cover 7 towns across County Antrim, including Belfast, Lisburn, Newtownabbey and Carrickfergus, and the villages around them. Island and remote addresses are surveyed by arrangement.

Is there VAT on an insulation and guarantee check in County Antrim?

Existing insulation and guarantee check is not insulation, so it is normally charged at the standard rate of VAT. The VAT treatment is confirmed on your quote.

What will I get from an insulation and guarantee check in County Antrim?

A visit at an agreed price, photos of what we find, and a written summary in plain English. Any follow-on work is priced separately so you can choose who does it.

Do you cold-call in County 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.

Existing insulation and guarantee check in nearby areas

Book an insulation check in County Antrim

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