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Nairn · Highlands and Islands

Cavity insulation for new builds and extensions in Nairn

Looking for cavity insulation for new builds and extensions in Nairn? We survey first, name the installer, their scheme registrations and the guarantee on the quote, and only then book the work. For new walls the cavity is insulated as it is built, using full-fill mineral wool batts or partial-fill boards fixed to the inner leaf.

Free survey in Nairn

Covering Nairn and the IV12 district. Tell us about the property and we will arrange a free survey and a fixed price.

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Cavity insulation for new builds and extensions for Nairn properties

Our Highlands and Islands coverage takes in Nairn (IV12) and nearby Inverness. It is about 15 miles north-east of Inverness.

Nairn properties with rendered or painted walls get a closer look at the outer finish, because cracked render can let rain behind it. A suitable wall in Nairn is usually filled in a single day from outside, with drill holes made good to match the pointing.

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 Nairn 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.

Extensions that join an older house

Where an extension meets an existing cavity wall, the junction is a weak point. We can borescope and fill the existing wall at the same time so the old and new walls perform together.

What is included in Nairn

  • Photo record for building control
  • Batts or boards to the specified U-value
  • Coordination with your bricklayers
  • Clean-cavity working

Guide prices for Nairn

Cavity insulation for new builds and extensions guide prices
Cavity insulation for new builds and extensions guide pricesGuide price
Full-fill batts supplied and fitted, per m²£9–£16
Partial-fill boards supplied and fitted, per m²£14–£26

Prices are shown before any VAT; the VAT treatment for new-build work is confirmed on your quote. 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.

How it works in Nairn:

  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 insulation for new builds and extensions in Nairn: questions

How soon can you visit in Nairn?

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.

Are there grants for insulation in Nairn?

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.

How much does cavity insulation for new builds and extensions cost in Nairn?

Our guide ranges for cavity insulation for new builds and extensions are shown on this page. The fixed price for your Nairn property is confirmed in writing after the survey, before any work starts.

Is there VAT on cavity insulation for new builds and extensions in Nairn?

Building a new home is usually zero-rated when supplied by the builder; supply-only materials are standard-rated. The VAT treatment is confirmed on your quote.

Nearby towns

Book a free survey in Nairn

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