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Lurgan · County Armagh

Cavity wall insulation in Lurgan

Cavity wall insulation fills the gap between the two leaves of a brick or block wall with a certified insulating material, blown in through small holes drilled from outside. We cover Lurgan and the wider BT66 postcode district, with the survey, result and fixed price all in writing.

Free survey in Lurgan

Covering Lurgan and the BT66 district. Tell us about the property and we will arrange a free survey and a fixed price.

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Cavity wall insulation for Lurgan properties

We cover Lurgan and the BT66 postcode district, including nearby Craigavon, Portadown and Armagh. It is around 2 miles east of Craigavon.

A suitable wall in Lurgan is usually filled in a single day from outside, with drill holes made good to match the pointing. Where a Lurgan property has an extension or a conservatory, we check how the old and new walls meet, because that junction is often missed.

Every elevation is judged on its own exposure. 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.

In terms of approvals, in Lurgan 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.

What happens on the day?

Holes of around 22mm are drilled in the mortar joints in a set pattern, roughly a metre apart. The insulation is blown in from the bottom up until each section is full, then every hole is filled with colour-matched mortar. Air bricks and flues are protected, and a cavity barrier is fitted where your wall joins a neighbour's.

What is included in Lurgan

  • Certified mineral wool or bonded bead system
  • Building regulations route for your nation, confirmed in writing
  • Suitability survey with photos and a written result
  • Borescope check where the cavity is in doubt

Guide prices for Lurgan

Cavity wall insulation guide prices
Cavity wall insulation guide pricesGuide price
Detached house£2,295–£3,795
Semi-detached house£1,495–£2,495
End-terrace house£1,295–£2,195
Detached bungalow£1,295–£2,195
Semi-detached bungalow£895–£1,595
Mid-terrace house£795–£1,395

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.

What happens next for a Lurgan property:

  1. Tell us about the property

    Postcode, property type and what you need.

  2. Free survey

    Walls, cavity, condition and exposure checked and photographed.

  3. Written result and price

    Suitable, suitable after repairs, or not suitable, with a fixed price.

  4. Work and paperwork

    Installation, making good, and the regulations and guarantee paperwork.

Last reviewed 19 October 2026.

Cavity wall insulation in Lurgan: questions

Is my Lurgan home too exposed for cavity insulation?

Parts of County Armagh 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.

Is the survey free in Lurgan?

Yes when it is for an install quote. Standalone reports for Lurgan buyers, sellers or landlords who do not need an install quote are priced before you book.

Which building regulations route applies in Lurgan?

Lurgan is in Northern Ireland, so inserting cavity wall insulation needs a building control application to the council before work starts. We confirm the route in writing on your quote.

Is there VAT on cavity wall insulation in Lurgan?

Installing insulation in a home is currently zero-rated for VAT until 31 March 2027, then 5%. Commercial buildings are standard-rated.

Nearby towns

Book a free survey in Lurgan

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