Cornwall · England
Render and insulation in St Austell
Render and insulation in St Austell: guide prices online, then a free survey and fixed written quote.
- Free survey in PL25 and nearby
- Fixed written price before work starts
- Guide prices online
Free survey in St Austell
Tell us about the property. We reply on working days.
Services
Services in St Austell
External wall insulation
- External wall insulation in St Austell
- EPS insulation in St Austell
- Mineral wool EWI in St Austell
- Wood fibre EWI in St Austell
- Non-traditional houses in St Austell
- Park home insulation in St Austell
- Flats and blocks in St Austell
- Commercial EWI in St Austell
Solid and internal wall insulation
- Solid wall insulation in St Austell
- Internal wall insulation in St Austell
- Survey and quote in St Austell
Render finishes
- Insulated render in St Austell
- Silicone render in St Austell
- Monocouche render in St Austell
- Lime render in St Austell
- Brick slip EWI in St Austell
- Acrylic render in St Austell
Re-rendering, repairs and upkeep
Homes and walls in St Austell
We cover St Austell and nearby Bodmin, Truro and Newquay. St Austell sits around 21 miles from Redruth.
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.
- Postcode district
- PL25
- County or area
- Cornwall
- Nation
- England
Approvals in England
For a house in St Austell, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
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.
Typical jobs and guide prices
| Item | Guide price | Notes |
|---|---|---|
| Covering pebble dash | From £72 per m² + scaffoldinc VAT | Render over sound pebble dash |
| Mineral wool external wall insulation | From £125 per m² + scaffold0% VAT | Mineral wool + mineral or silicone render |
| Render repairs | From £475inc VAT | Small repairs, single visit |
| External wall insulation | From £105 per m² + scaffold0% VAT | EPS system with silicone render |
Insulation prices for homes are totals (0% VAT until 31 March 2027); render and repair prices include VAT at 20%. Confirmed in writing after a free survey. Full price guide
Nearby towns
St Austell: questions
Do you cover St Austell?
Yes — we survey and quote in St Austell (PL25) and nearby Bodmin, Truro and Newquay.
How much does external wall insulation cost in St Austell?
Our guide is £105–£170 per m² depending on the system, plus scaffolding — roughly £10,200–£17,700 for a typical three-bed semi with EPS and silicone render. Installing insulation in a home is zero-rated for VAT until 31 March 2027, so that's the total. A free survey fixes the price.
Do I need planning permission in St Austell?
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.
Is VAT charged on wall insulation?
Installing wall insulation in homes is zero-rated until 31 March 2027, then 5%, so our insulation prices are totals. Render-only work and repairs carry VAT at 20%, and our prices for them include it.