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Norwich · Norfolk

Blown mineral wool insulation in Norwich

Blown mineral wool is a water-repellent glass or stone fibre blown into the cavity as loose wool. We cover Norwich and the wider NR1 postcode district, with the survey, result and fixed price all in writing.

Free survey in Norwich

Covering Norwich and the NR1 district. Tell us about the property and we will arrange a free survey and a fixed price.

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Blown mineral wool insulation for Norwich properties

If your property is in Norwich or the NR1 district or nearby Great Yarmouth, Thetford and King's Lynn, it is within our Norfolk coverage. Norwich is one of the main towns we cover in Norfolk.

Norwich properties with rendered or painted walls get a closer look at the outer finish, because cracked render can let rain behind it. If a wall in Norwich 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. Much of Norfolk 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 Norwich 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 is it not the right choice?

Very narrow or uneven cavities, walls with lots of mortar snots and debris, and some very exposed elevations can be better suited to bonded bead, which flows around obstructions and is certified for a wider range of exposure zones in some systems. The survey says which and why.

What is included in Norwich

  • Certified mineral fibre system
  • Making good to the mortar colour
  • Regulations route and guarantee named on the quote
  • Density and drill pattern recorded

Guide prices for Norwich

Blown mineral wool insulation guide prices
Blown mineral wool insulation guide pricesGuide price
Detached house£1,895–£3,395
Semi-detached house£1,295–£2,195
End-terrace house£1,095–£1,895
Detached bungalow£1,095–£1,895
Semi-detached bungalow£795–£1,395
Mid-terrace house£795–£1,295

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.

The steps for blown mineral wool insulation in Norwich:

  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.

Blown mineral wool insulation in Norwich: questions

Is my Norwich home too exposed for cavity insulation?

Much of Norfolk 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 there VAT on blown mineral wool insulation in Norwich?

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

How soon can you visit in Norwich?

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 blown mineral wool insulation cost in Norwich?

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

Nearby towns

Book a free survey in Norwich

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