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Larne · County Antrim

Blown mineral wool insulation in Larne

Blown mineral wool is a water-repellent glass or stone fibre blown into the cavity as loose wool. In Larne we follow the Northern Ireland rules on building control applications, and confirm the route on your quote.

Free survey in Larne

Covering Larne and the BT40 district. Tell us about the property and we will arrange a free survey and a fixed price.

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Blown mineral wool insulation for Larne properties

Larne is among the towns we cover in County Antrim, alongside Carrickfergus, Newtownabbey and Belfast. It is about 18 miles north of Belfast.

For semi-detached and terraced homes in Larne, cavity barriers are fitted where your wall meets your neighbour's so the fill stays on your side. Larne properties with rendered or painted walls get a closer look at the outer finish, because cracked render can let rain behind it.

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.

On the rules side, in Larne inserting cavity wall insulation needs a building control application to the council before work starts.

Funding in Northern Ireland

In Northern Ireland, the Affordable Warmth Scheme helps eligible households with a gross income under £23,000.

Sources: NI Housing Executive: Affordable Warmth Scheme; Utility Regulator: NI Sustainable Energy Programme.

When is it not the right choice?

Very narrow or uneven cavities, walls with lots of mortar snots and debris, and some very exposed elevations can be better suited to bonded bead, which flows around obstructions and is certified for a wider range of exposure zones in some systems. The survey says which and why.

What is included in Larne

  • Density and drill pattern recorded
  • Regulations route and guarantee named on the quote
  • Making good to the mortar colour
  • Certified mineral fibre system

Guide prices for Larne

Blown mineral wool insulation guide prices
Blown mineral wool insulation guide pricesGuide price
Detached house£1,895–£3,395
Semi-detached house£1,295–£2,195
End-terrace house£1,095–£1,895
Detached bungalow£1,095–£1,895
Semi-detached bungalow£795–£1,395
Mid-terrace house£795–£1,295

No VAT is charged on installing insulation in homes until 31 March 2027 (then 5%). 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 Larne:

  1. Get in touch

    Online, by phone or WhatsApp, whichever suits you.

  2. Survey visit

    The surveyor checks each wall and looks into the cavity where needed.

  3. Your result in writing

    What we found, what it means, and a fixed price if work is needed.

  4. Booked work

    Carried out by the installer named on your quote, with their scheme registrations.

Last reviewed 19 October 2026.

Blown mineral wool insulation in Larne: questions

How much does blown mineral wool insulation cost in Larne?

Our guide ranges for blown mineral wool insulation are shown on this page. The fixed price for your Larne property is confirmed in writing after the survey, before any work starts.

Is my Larne home too exposed for cavity insulation?

Parts of County Antrim get some of the heaviest wind-driven rain in the UK, so the survey is stricter and some walls are better left unfilled. The survey records the exposure of each wall before recommending a material, or recommending against filling.

Are there grants for insulation in Larne?

In Northern Ireland, the Affordable Warmth Scheme helps eligible households with a gross income under £23,000. We cannot promise funding, but we will point you to the right official route.

How soon can you visit in Larne?

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 a free survey in Larne

Free survey with an install quote. Written result. Fixed price before any work.