Non-traditional houses · Wiltshire
Non-traditional and concrete house insulation in Trowbridge
Quotes for non-traditional house insulation in Trowbridge list the system, the detailing and the VAT position in writing, so you know exactly what's included. For concrete houses in Trowbridge, we report any visible spalling or cracking before quoting the insulation, not after.
- Free survey in BA14 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Trowbridge
Postcode, service and a phone number is all we need.
Included as standard
- Steel-framed BISF houses need care around the upper-storey cladding
- The survey identifies the construction type before anything is specified
- Most system-built homes have thin, cold walls and no fillable cavity
- Fixing design depends on the panel or frame behind the wall

Before we quote in Trowbridge
Surveys in Trowbridge also cover the surrounding BA14 district and towns such as Bath and Frome. It's roughly 25 miles from Trowbridge to Swindon, the largest town in Wiltshire. 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 Wiltshire: 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.
Where one half of a pair in Trowbridge is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Postcode district
- BA14
- County or area
- Wiltshire
- Nation
- England
- Nearby
- Bath, Frome, Chippenham, Kingswood
Permissions in England
Before quoting in Trowbridge, 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.
Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.
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 Trowbridge
| 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.
From enquiry to finished wall
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Non-traditional houses in Trowbridge: questions
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.
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.
Will EWI make my house mortgageable?
It can make a house more attractive and better insulated, but it does not replace a certified structural repair where a lender requires one. Ask your lender before relying on it.
Do you cover Trowbridge?
Yes — we survey and quote non-traditional house insulation in Trowbridge (BA14) and nearby Bath, Frome and Chippenham, with a fixed written price before any work starts.