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Dudley · West Midlands

Cavity wall insulation in Dudley

For homes and buildings in Dudley, cavity wall insulation is arranged survey-first: we check the property, tell you plainly what we found, and price it. Cavity wall insulation fills the gap between the two leaves of a brick or block wall with a certified insulating material, blown in through small holes drilled from outside.

Free survey in Dudley

Covering Dudley and the DY2 district. Tell us about the property and we will arrange a free survey and a fixed price.

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Cavity wall insulation for Dudley properties

Our West Midlands coverage takes in Dudley (DY2) and nearby Tipton, Kingswinford and Halesowen. It is around 8 miles west of Birmingham.

For semi-detached and terraced homes in Dudley, cavity barriers are fitted where your wall meets your neighbour's so the fill stays on your side. If a wall in Dudley 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.

Wind-driven rain is the first thing the surveyor weighs up. The West Midlands 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 Dudley 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.

What happens on the day?

Holes of around 22mm are drilled in the mortar joints in a set pattern, roughly a metre apart. The insulation is blown in from the bottom up until each section is full, then every hole is filled with colour-matched mortar. Air bricks and flues are protected, and a cavity barrier is fitted where your wall joins a neighbour's.

What is included in Dudley

  • Drilling, filling and colour-matched making good
  • Building regulations route for your nation, confirmed in writing
  • Borescope check where the cavity is in doubt
  • Suitability survey with photos and a written result

Guide prices for Dudley

Cavity wall insulation guide prices
Cavity wall 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 Dudley:

  1. Send your details

    A minute online, or call the free number.

  2. We check the walls

    Construction, cavity width, debris, damp and wind-driven rain exposure.

  3. You decide

    Plain-English result and a fixed price, with no pressure to book.

  4. Job done properly

    Holes made good, paperwork handed over, guarantee details confirmed.

Last reviewed 19 October 2026.

Cavity wall insulation in Dudley: questions

Is there VAT on cavity wall insulation in Dudley?

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

Is my Dudley home too exposed for cavity insulation?

The West Midlands 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.

Do you work on rented homes in Dudley?

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

How much does cavity wall insulation cost in Dudley?

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

Nearby towns

Book a free survey in Dudley

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