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Stornoway · Highlands and Islands

Cavity insulation top-up in Stornoway

Cavity insulation top-up in Stornoway starts with a free survey of the property, then a written result and a fixed price before any work is booked. A cavity top-up fills voids left by an older installation: missed panels around windows, settled fibre, areas disturbed by an extension or new window.

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 insulation top-up for Stornoway properties

Stornoway is among the towns we cover in the Highlands and Islands. Island addresses are surveyed by arrangement.

Where a Stornoway property has an extension or a conservatory, we check how the old and new walls meet, because that junction is often missed. 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.

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.

On compliance, 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.

When a top-up is not enough

If the existing fill is wet, contaminated with debris or breaking down, adding more on top can make things worse. In that case we tell you the honest option, which may be partial or full removal and refill.

What is included in Stornoway

  • Making good
  • Written result with photos
  • Borescope survey at several points
  • Targeted fill with a compatible system

Guide prices for Stornoway

Cavity insulation top-up guide prices
Cavity insulation top-up guide pricesGuide price
Detached house£1,295–£2,295
Semi-detached house£795–£1,495
End-terrace house£695–£1,295
Detached bungalow£695–£1,295
Semi-detached bungalow£595–£995
Mid-terrace house£595–£995

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.

The steps for cavity insulation top-up in Stornoway:

  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 insulation top-up in Stornoway: questions

How soon can you visit in Stornoway?

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.

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.

How much does cavity insulation top-up cost in Stornoway?

Our guide ranges for cavity insulation top-up are shown on this page. The fixed price for your Stornoway property is confirmed in writing after the survey, before any work starts.

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.

Book a free survey in Stornoway

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