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External wall insulation · Somerset

External wall insulation in Frome

External wall insulation in Frome: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. Whole-house jobs and single elevations are both quoted in Frome; a cold gable or rear wall can be done on its own where it suits.

  • Free survey in BA11 and nearby
  • Guide price from £105 per m² + scaffold, 0% VAT
  • Fixed written price before work starts

Free survey in Frome

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What's included

  • Covers tired brick, pebble dash or failing render with a new finish
  • Work happens outside, so you can live at home throughout
  • Typically takes a 225mm solid brick wall from around 2.1 W/m²K to about 0.30 W/m²K with 90–110mm of board
  • Boards chosen for the wall: EPS, mineral wool, wood fibre or phenolic
Side gable of a semi-detached house part-way through external wall insulation, with mineral wool slabs, mesh base coat and finished white render

What we look for in Frome

Surveys in Frome also cover the surrounding BA11 district and towns such as Trowbridge and Bath. Frome is about 10 miles from Bath. The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.

Exposure to wind-driven rain varies across Somerset: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.

For homes in Frome, the survey starts with the wall itself: solid brick, stone or concrete, and whether any old render is sound enough to insulate over.

Postcode district
BA11
County or area
Somerset
Nation
England
Nearby
Trowbridge, Bath, Kingswood, Chippenham

Planning and building control in England

Before quoting in Frome, we check whether the property is in a conservation area, under an Article 4 direction or listed, because that decides whether changing the outside needs planning permission.

If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.

What finish can I have?

Most EWI is finished in a thin-coat silicone render in a through-coloured shade, with a 1–2mm grain. Acrylic, mineral (painted), dry-dash and brick-slip finishes are also available. Where planning wants a brick look, brick slips over the insulation keep the street appearance.

External wall insulation prices in Frome

External wall insulation guide prices
ItemGuide priceNotes
EPS system with silicone render£105–£145 per m²0% VATMost common choice for houses
Mineral wool system£125–£170 per m²0% VATNon-combustible, vapour-open
Brick-slip finish over insulation£185–£260 per m²0% VATWhere a brick look is wanted
Three-bed semi, EPS + silicone (incl. scaffold)£10,200–£17,7000% VAT80–100 m² of wall; depends on detailing and access

Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.

What happens next

  1. Enquiry

    Send your postcode and a few details.

  2. Measured survey

    Walls, damp, eaves, cills and services recorded.

  3. Written price

    A fixed price with the specification attached.

  4. Work and handover

    Installed, inspected and documents handed over.

External wall insulation in Frome: questions

How long does external wall insulation last?

A well-installed render system is commonly expected to last 25–30 years or more, with occasional cleaning and inspection of sealants. The system manufacturer's documentation states the expected service life for the specific build-up.

Do I need planning permission for external wall insulation?

Often not for a house in England or Wales if the finish looks similar to the existing walls. You will usually need permission in a conservation area, on flats, on commercial buildings or where the appearance changes noticeably. Listed buildings need listed building consent. We check your address before quoting.

Can EWI go over pebble dash?

Usually yes. The dash is tested for adhesion and hollow areas; sound dash can be insulated over with additional mechanical fixings, while loose areas are removed first.

Do you cover Frome?

Yes — we survey and quote external wall insulation in Frome (BA11) and nearby Trowbridge, Bath and Kingswood, with a fixed written price before any work starts.

External wall insulation in Frome

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