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Ebbw Vale · Gwent

Cavity insulation for new builds and extensions in Ebbw Vale

Cavity insulation for new builds and extensions in Ebbw Vale 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 Ebbw Vale

Covering Ebbw Vale and the NP23 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 Ebbw Vale properties

If your property is in Ebbw Vale or the NP23 district or nearby Pontypool, Cwmbran and Risca, it is within our Gwent coverage. It is around 16 miles north-west of Newport.

If a wall in Ebbw Vale 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. Most Ebbw Vale 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.

Before any material is chosen, exposure is checked. Parts of Gwent 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 the rules side, in Ebbw Vale filling a cavity is notifiable work under the Building Regulations as they apply in Wales, usually self-certified through a competent person scheme.

Funding in Wales

In Wales, Warm Homes Nest offers free improvements to eligible low-income households, and ECO4 runs to 31 December 2026.

Sources: Welsh Government: warmer and more energy efficient homes (July 2026); GOV.UK: extending the ECO4 end date, government response.

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 Ebbw Vale

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

Guide prices for Ebbw Vale

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 Ebbw Vale 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 Ebbw Vale: questions

How soon can you visit in Ebbw Vale?

We arrange dates when you get in touch. Availability varies through the year, so we give you real dates rather than a promise on the website.

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

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

Is the survey free in Ebbw Vale?

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

Do you cover Ebbw Vale?

Yes. Ebbw Vale and the NP23 postcode district are within our Gwent coverage, along with nearby Pontypool and Cwmbran.

Nearby towns

Book a free survey in Ebbw Vale

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