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Oban · Argyll and Bute

Cavity insulation for new builds and extensions in Oban

Cavity insulation for new builds and extensions in Oban starts with a free survey of the property, then a written result and a fixed price before any work is booked. 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 Oban

Covering Oban and the PA34 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 Oban properties

Oban sits in Argyll and Bute, about 39 miles north-west of Helensburgh. We work across the PA34 district, including nearby Dunoon and Helensburgh.

Oban 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 Oban is usually filled in a single day from outside, with drill holes made good to match the pointing.

Exposure matters for every cavity wall. Parts of Argyll and Bute 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 Oban 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 Oban

  • Photo record for building control
  • Coordination with your bricklayers
  • Clean-cavity working
  • Trays, closers and stop ends as drawn

Guide prices for Oban

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.

What happens next for an Oban 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 insulation for new builds and extensions in Oban: questions

Do you cover Oban?

Yes. Oban and the PA34 postcode district are within our Argyll and Bute coverage, along with nearby Dunoon and Helensburgh.

Do you work on rented homes in Oban?

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

Is my Oban home too exposed for cavity insulation?

Parts of Argyll and Bute 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.

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

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

Nearby towns

Book a free survey in Oban

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