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Stornoway · Highlands and Islands

Cavity wall insulation in Stornoway

For homes and buildings in Stornoway, cavity wall insulation is arranged survey-first: we check the property, tell you plainly what we found, and price it. 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.

Free survey in Stornoway

Covering Stornoway and the HS1 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 Stornoway properties

Stornoway sits in the Highlands and Islands. We work across the HS1 district.

For semi-detached and terraced homes in Stornoway, cavity barriers are fitted where your wall meets your neighbour's so the fill stays on your side. If a wall in Stornoway is not suitable, for example because of an undiagnosed damp patch or a very exposed gable, you are told so in writing with the reason.

Every elevation is judged on its own exposure. Parts of the Highlands and Islands 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 Stornoway no building warrant is needed for insulation within a wall, but the work must meet the building standards.

Funding in Scotland

In Scotland, Home Energy Scotland is the route to the Home Energy Scotland Grant and Loan and Warmer Homes Scotland.

Sources: Home Energy Scotland; mygov.scot: grants and loans for energy saving improvements.

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 Stornoway

  • Building regulations route for your nation, confirmed in writing
  • Drilling, filling and colour-matched making good
  • Suitability survey with photos and a written result
  • Guarantee and installer named on your quote

Guide prices for Stornoway

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 Stornoway property:

  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.

Cavity wall insulation in Stornoway: questions

Do you cold-call in Stornoway?

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

Which building regulations route applies in Stornoway?

Stornoway is in Scotland, so no building warrant is needed for insulation within a wall, but the work must meet the building standards. We confirm the route in writing on your quote.

Is my Stornoway home too exposed for cavity insulation?

Parts of the Highlands and Islands 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 Stornoway?

In Scotland, Home Energy Scotland is the route to the Home Energy Scotland Grant and Loan and Warmer Homes Scotland. We cannot promise funding, but we will point you to the right official route.

Book a free survey in Stornoway

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