Solid wall insulation · Somerset
Solid wall insulation in Weston-super-Mare
If you're planning solid wall insulation in Weston-super-Mare, start with a free survey: we measure, check the walls and confirm planning and building control for your address. On solid-walled houses in Weston-super-Mare, the gable or the most weather-exposed wall is often the place to start.
- Free survey in BS23 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Weston-super-Mare
Postcode, service and a phone number is all we need.
What the job covers
- External insulation keeps room sizes and treats cold bridges well
- Both can be done in stages, elevation by elevation or room by room
- Breathable options for stone and lime-mortared walls
- Internal insulation suits single rooms or where the outside can't change

Before we quote in Weston-super-Mare
We cover Weston-super-Mare and nearby Burnham-on-Sea, Clevedon and Nailsea. It's roughly 27 miles from Weston-super-Mare to Bath, the largest town in Somerset. 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 Weston-super-Mare homeowners weighing external against internal insulation, the survey sets out both with prices.
- Postcode district
- BS23
- County or area
- Somerset
- Nation
- England
- Nearby
- Burnham-on-Sea, Clevedon, Nailsea, Portishead
England: planning and regulations
Before quoting in Weston-super-Mare, 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.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
How can I tell if my walls are solid?
Measure the wall thickness at a window or door: about 225mm (9 inches) of brick usually means solid, while 260mm or more often means a cavity. On exposed brick, a pattern with bricks laid end-on (headers) every few courses points to solid construction. Stone walls are usually solid regardless of thickness. Age is a strong clue too — most homes built before the 1920s are solid-walled.
Solid wall insulation prices in Weston-super-Mare
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
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.
How it works
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Solid wall insulation in Weston-super-Mare: questions
Is solid wall insulation worth it?
For many solid-walled homes it's one of the biggest single improvements to comfort, because the walls are often the largest heat-loss area. Savings depend on the home and heating, so we don't promise a figure.
Can I get a grant for solid wall insulation?
Some schemes cover it for eligible households — for example ECO4 until 31 December 2026, Home Energy Scotland's grant and loan, Wales' Warm Homes Nest and NI's Affordable Warmth Scheme. Each has its own eligibility and installer rules; see our grants guide.
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
Do you cover Weston-super-Mare?
Yes — we survey and quote solid wall insulation in Weston-super-Mare (BS23) and nearby Burnham-on-Sea, Clevedon and Nailsea, with a fixed written price before any work starts.