Non-traditional houses · Somerset
Non-traditional and concrete house insulation in Portishead
From Portishead to Nailsea, we price non-traditional house insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. Where a home in Portishead is system-built, the first job is confirming the construction type.
- Free survey in BS20 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Portishead
Postcode, service and a phone number is all we need.
Part of every quote
- The survey identifies the construction type before anything is specified
- Fixing design depends on the panel or frame behind the wall
- EWI improves comfort and can renew a tired concrete exterior
- Most system-built homes have thin, cold walls and no fillable cavity
Local considerations in Portishead
Surveys in Portishead also cover the surrounding BS20 district and towns such as Nailsea and Clevedon. Portishead sits around 19 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 concrete houses in Portishead, we report any visible spalling or cracking before quoting the insulation, not after.
- Postcode district
- BS20
- County or area
- Somerset
- Nation
- England
- Nearby
- Nailsea, Clevedon, Kingswood, Mangotsfield
Planning and building control in England
Planning in Portishead follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
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.
What does the work involve?
After checking the wall condition, any spalling concrete or corroded steel is reported before boards go on. Fixings are chosen for the substrate — concrete, steel-framed panels or mixed constructions — and the system is detailed around eaves, cills and the junction with neighbouring properties, which may not be insulated.
Non-traditional and concrete house insulation prices in Portishead
| Item | Guide price | Notes |
|---|---|---|
| EWI on concrete or steel-framed walls | £120–£180 per m²0% VAT | Includes extra preparation |
| Semi-detached, full house | £11,400–£21,2000% VAT | 80–100 m² of wall, including scaffold |
| Concrete repairs found at survey | Priced separately | Only where needed |
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.
Non-traditional houses in Portishead: questions
Can you put EWI on a BISF house?
Yes, with care. The steel frame and upper-storey cladding need a system and fixing method designed for that construction, and the condition of the frame should be understood first.
What if my neighbour isn't insulating?
We finish the system neatly at the boundary with a closing detail so the neighbouring house isn't affected and can be joined later.
Can you insulate a Wimpey no-fines house?
Yes. No-fines houses have solid poured-concrete walls with no cavity, so EWI is the usual route. The survey checks the concrete condition first.
Do you cover Portishead?
Yes — we survey and quote non-traditional house insulation in Portishead (BS20) and nearby Nailsea, Clevedon and Kingswood, with a fixed written price before any work starts.