Non-traditional houses · Cornwall
Non-traditional and concrete house insulation in St Austell
Homeowners and landlords in St Austell can get a free survey and a fixed written quote for non-traditional house insulation, covering PL25 and the surrounding area. For concrete houses in St Austell, we report any visible spalling or cracking before quoting the insulation, not after.
- Free survey in PL25 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in St Austell
Postcode, service and a phone number is all we need.
Included as standard
- EWI is not a structural repair for PRC houses designated defective
- The survey identifies the construction type before anything is specified
- Most system-built homes have thin, cold walls and no fillable cavity
- Steel-framed BISF houses need care around the upper-storey cladding
St Austell: walls, weather and approvals
Surveys in St Austell also cover the surrounding PL25 district and towns such as Bodmin and Truro. It's roughly 21 miles from St Austell to Redruth, the largest town in Cornwall. 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.
Parts of Cornwall fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
Where one half of a pair in St Austell is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Postcode district
- PL25
- County or area
- Cornwall
- Nation
- England
- Nearby
- Bodmin, Truro, Newquay, Falmouth
Planning and building control in England
Before quoting in St Austell, 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.
How do I know if my house is non-traditional?
Clues include concrete panels or posts visible at corners, a smooth concrete or rendered finish on houses of a 1940s–1960s estate, steel sheeting on the upper storey, or a mortgage valuation that mentioned the construction type. Common types include Wimpey no-fines (poured concrete), Airey and Cornish Unit (precast reinforced concrete), Reema, Orlit and BISF (steel frame). We identify the type during the survey.
Non-traditional and concrete house insulation prices in St Austell
| 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 St Austell: questions
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.
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.
Do you cover St Austell?
Yes — we survey and quote non-traditional house insulation in St Austell (PL25) and nearby Bodmin, Truro and Newquay, with a fixed written price before any work starts.