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Bournemouth · Dorset

Cavity insulation top-up in Bournemouth

A cavity top-up fills voids left by an older installation: missed panels around windows, settled fibre, areas disturbed by an extension or new window. We cover Bournemouth and the wider BH2 postcode district, with the survey, result and fixed price all in writing.

Free survey in Bournemouth

Covering Bournemouth and the BH2 district. Tell us about the property and we will arrange a free survey and a fixed price.

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Cavity insulation top-up for Bournemouth properties

Bournemouth is among the towns we cover in Dorset, alongside Christchurch and Poole. Bournemouth is one of the main towns we cover in Dorset.

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

Every elevation is judged on its own exposure. Dorset 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.

On the rules side, in Bournemouth filling a cavity is notifiable building work and needs a building notice or competent-person self-certification.

Funding in England

In England, ECO4 runs to 31 December 2026 and Warm Homes: Local Grant supports low-income households through councils.

Sources: GOV.UK: extending the ECO4 end date, government response; GOV.UK: Warm Homes Plan.

When a top-up is not enough

If the existing fill is wet, contaminated with debris or breaking down, adding more on top can make things worse. In that case we tell you the honest option, which may be partial or full removal and refill.

What is included in Bournemouth

  • Targeted fill with a compatible system
  • Making good
  • Written result with photos
  • Map of filled and empty sections

Guide prices for Bournemouth

Cavity insulation top-up guide prices
Cavity insulation top-up guide pricesGuide price
Detached house£1,295–£2,295
Semi-detached house£795–£1,495
End-terrace house£695–£1,295
Detached bungalow£695–£1,295
Semi-detached bungalow£595–£995
Mid-terrace house£595–£995

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.

What happens next for a Bournemouth 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 top-up in Bournemouth: questions

Do you cover Bournemouth?

Yes. Bournemouth and the BH2 postcode district are within our Dorset coverage, along with nearby Christchurch and Poole.

Is the survey free in Bournemouth?

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

Do you work on rented homes in Bournemouth?

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

Is there VAT on cavity insulation top-up in Bournemouth?

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

Nearby towns

Book a free survey in Bournemouth

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