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County Antrim · Northern Ireland

Cavity wall insulation removal in County Antrim

For homes, landlords and businesses in County Antrim, cavity wall insulation removal comes with a clear price and a plain-English record. Cavity wall insulation removal takes failed fill out of the cavity, usually by lifting bricks at low level and extracting the material with an industrial vacuum and rods, then cleaning the cavity and rebuilding the brickwork.

Old cavity insulation being extracted through bricks removed at the base of a wall, with sacks of extracted fibre

Book a removal survey in County Antrim

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Cavity wall insulation removal across County Antrim

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

Exposure matters for every cavity wall. 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.

We never cold-call in County Antrim or anywhere else, and we do not work with doorstep claims companies. Defects such as failed pointing, leaking gutters and bridged damp-proof courses are listed and priced separately for County Antrim properties, so you can choose who fixes them.

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.

Should I remove my cavity wall insulation?

Not always. Welsh Government guidance makes the point that extraction is not always the right remedy. Damp can come from blocked gutters, failed pointing, bridged damp-proof courses or condensation, none of which removal fixes. We start with a damp investigation and borescope checks, then recommend removal only where the fill itself is the problem.

What is included

  • Damp investigation and borescope diagnosis first
  • Brick removal and reinstatement
  • Full extraction and cavity clean
  • Camera check before rebuild
  • Waste disposal
  • Option to refill with a suitable system

Cavity wall insulation removal prices in County Antrim

Cavity wall insulation removal guide prices
Cavity wall insulation removal guide pricesGuide price
Detached house£2,595–£4,195
Semi-detached house£1,695–£2,795
End-terrace house£1,395–£2,395
Detached bungalow£1,395–£2,395
Semi-detached bungalow£1,195–£1,695
Mid-terrace house£1,195–£1,595

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 County Antrim:

  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.

Cavity wall insulation removal 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.

What will I get from cavity wall insulation removal 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 work on rented homes in County Antrim?

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

How soon can you visit in County 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.

Cavity wall insulation removal in nearby areas

Book a removal survey in County Antrim

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