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Romford · Greater London

Cavity insulation for new builds and extensions in Romford

Looking for cavity insulation for new builds and extensions in Romford? We survey first, name the installer, their scheme registrations and the guarantee on the quote, and only then book the work. 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 Romford

Covering Romford and the RM1 district. Tell us about the property and we will arrange a free survey and a fixed price.

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We use your details only to answer this enquiry and arrange your visit, sharing them only with the registered installer we appoint for your job and the providers named in our privacy notice. No marketing lists, no cold calls.

Cavity insulation for new builds and extensions for Romford properties

We cover Romford and the RM1 postcode district, including nearby Hornchurch, Dagenham and Becontree. It is around 14 miles east of London.

For semi-detached and terraced homes in Romford, cavity barriers are fitted where your wall meets your neighbour's so the fill stays on your side. Where a Romford property has an extension or a conservatory, we check how the old and new walls meet, because that junction is often missed.

Every elevation is judged on its own exposure. Much of Greater London sits in the more sheltered driving-rain zones of the UK, which widens the choice of fill. Exposed elevations, coastal sites and high ground still get checked wall by wall.

On the rules side, in Romford 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 we work from

Your architect's or designer's specification and the energy calculation for the job. We match the product, thickness and fixing to that spec, keep cavities clean as the walls rise, and fit cavity trays, closers and stop ends where shown so the building control inspection goes smoothly.

What is included in Romford

  • Photo record for building control
  • Clean-cavity working
  • Batts or boards to the specified U-value
  • Coordination with your bricklayers

Guide prices for Romford

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.

From enquiry to finish in Romford:

  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 Romford: questions

Is my Romford home too exposed for cavity insulation?

Much of Greater London is in the more sheltered driving-rain zones, but exposed and coastal sites are still checked carefully. The survey records the exposure of each wall before recommending a material, or recommending against filling.

Is the survey free in Romford?

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

How soon can you visit in Romford?

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.

Do you work on rented homes in Romford?

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

Nearby towns

Book a free survey in Romford

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