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Alloa · Forth Valley

Cavity insulation for new builds and extensions in Alloa

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 Alloa and the wider FK10 postcode district, with the survey, result and fixed price all in writing.

Free survey in Alloa

Covering Alloa and the FK10 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 Alloa properties

Alloa sits in the Forth Valley, about 8 miles north of Falkirk. We work across the FK10 district, including nearby Stirling, Grangemouth and Falkirk.

A suitable wall in Alloa is usually filled in a single day from outside, with drill holes made good to match the pointing. If a wall in Alloa 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.

Local weather affects which walls can be filled. The Forth Valley has a mix of moderate and more exposed sites. Hilltop, coastal and west-facing walls take the brunt of wind-driven rain, so the survey records exposure for each elevation before a material is chosen.

As for paperwork, in Alloa 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 Alloa

  • Photo record for building control
  • Trays, closers and stop ends as drawn
  • Batts or boards to the specified U-value
  • Coordination with your bricklayers

Guide prices for Alloa

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 Alloa property:

  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 Alloa: questions

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

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

Are there grants for insulation in Alloa?

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.

Is the survey free in Alloa?

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

Is my Alloa home too exposed for cavity insulation?

The Forth Valley has a mix of moderate and more exposed sites, so each wall is judged on its own. The survey records the exposure of each wall before recommending a material, or recommending against filling.

Nearby towns

Book a free survey in Alloa

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