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Kirkwall · Highlands and Islands

Cavity insulation for new builds and extensions in Kirkwall

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. We cover Kirkwall and the wider KW15 postcode district, with the survey, result and fixed price all in writing.

Free survey in Kirkwall

Covering Kirkwall and the KW15 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 Kirkwall properties

Our Highlands and Islands coverage takes in Kirkwall (KW15) and nearby Thurso. Island addresses are surveyed by arrangement.

If a wall in Kirkwall 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. Most Kirkwall houses built from the 1920s onwards have cavity walls, but the survey still checks each one: cavity width, debris, the condition of the brickwork and how exposed each wall is.

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 the rules side, in Kirkwall 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 we work from

Your architect's or designer's specification and the energy calculation for the job. We match the product, thickness and fixing to that spec, keep cavities clean as the walls rise, and fit cavity trays, closers and stop ends where shown so the building control inspection goes smoothly.

What is included in Kirkwall

  • Trays, closers and stop ends as drawn
  • Clean-cavity working
  • Coordination with your bricklayers
  • Batts or boards to the specified U-value

Guide prices for Kirkwall

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 Kirkwall:

  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 for new builds and extensions in Kirkwall: questions

Is my Kirkwall 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.

Do you work on rented homes in Kirkwall?

Yes. Landlords and agents in Kirkwall can book batch visits, and work is arranged around tenants.

Is the survey free in Kirkwall?

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

Are there grants for insulation in Kirkwall?

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.

Nearby towns

Book a free survey in Kirkwall

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