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Dunbartonshire · Scotland

Bonded polystyrene bead insulation in Dunbartonshire

Dunbartonshire properties get the same survey-first approach to bonded polystyrene bead insulation: check, explain, price, then book. Bonded bead insulation is expanded polystyrene beads coated with an adhesive binder as they are blown in, so they set into a free-draining, fully filled layer.

Cutaway sample of a cavity wall filled with bonded white polystyrene beads between brick and block

Free survey in Dunbartonshire

Tell us about the property and we will arrange a free survey and a fixed price.

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Bonded polystyrene bead insulation across Dunbartonshire

We cover 5 towns in Dunbartonshire: Bearsden, Clydebank, Bishopbriggs, Dumbarton and Kirkintilloch.

Before any material is chosen, exposure is checked. Parts of Dunbartonshire 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.

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

Building standards in Scotland

In Scotland, work associated with thermal insulating material within a wall is listed in schedule 3 of the Building (Scotland) Regulations as work that does not need a building warrant. It must still meet the building standards, so the survey still checks that the wall and the chosen material are suitable, including exposure to wind-driven rain.

Funding in Scotland

  • Home Energy Scotland is the starting point for the Home Energy Scotland Grant and Loan and for Warmer Homes Scotland, which can include cavity wall insulation.
  • Many councils also run area-based schemes for insulation in particular streets or estates.
  • ECO4 runs until 31 December 2026 across Great Britain, including Scotland.

Sources: Scottish Government: building work not requiring a warrant (schedule 3); Home Energy Scotland; mygov.scot: grants and loans for energy saving improvements; GOV.UK: extending the ECO4 end date, government response.

Where bonded beads make sense

Beads behave a little like a liquid as they go in, so they fill narrow and irregular cavities more evenly than fibre. The binder stops them pouring out if a brick is removed later. Some certified bead systems are approved for higher driving-rain exposure than fibre systems, which is why they are common on western and coastal elevations.

What is included

  • Certified bonded bead system
  • Binder applied at the nozzle
  • Making good to the mortar colour
  • Cable and opening checks at survey
  • Regulations route and guarantee named on the quote

Bonded polystyrene bead insulation prices in Dunbartonshire

Bonded polystyrene bead insulation guide prices
Bonded polystyrene bead insulation guide pricesGuide price
Detached house£2,295–£3,795
Semi-detached house£1,495–£2,495
End-terrace house£1,295–£2,195
Detached bungalow£1,295–£2,195
Semi-detached bungalow£895–£1,595
Mid-terrace house£795–£1,395

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.

How it works in Dunbartonshire:

  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.

Bonded polystyrene bead insulation in Dunbartonshire: questions

Do you cover all of Dunbartonshire?

Yes. We cover 5 towns across Dunbartonshire, including Bearsden, Clydebank, Bishopbriggs and Dumbarton, and the villages around them. Island and remote addresses are surveyed by arrangement.

Do you cold-call in Dunbartonshire?

No. We only come out when you have asked us to. If someone cold-calls offering free insulation, check before you agree to anything.

Is there VAT on bonded polystyrene bead insulation in Dunbartonshire?

Installing insulation in a home is currently zero-rated for VAT until 31 March 2027, then 5%. Commercial buildings are standard-rated.

Is my Dunbartonshire home too exposed for cavity insulation?

Parts of Dunbartonshire 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.

Bonded polystyrene bead insulation in nearby areas

Book a free survey in Dunbartonshire

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