Insulated render · Cornwall
Insulated render systems in Penzance
From Penzance to Camborne, we price insulated render after a measured survey — no guesswork, and no work starts until the price is agreed in writing. Two-tone schemes, such as a darker plinth or entrance surround, are an option on houses in Penzance.
- Free survey in TR18 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Penzance
Postcode, service and a phone number is all we need.
What the job covers
- One system: board, adhesive, fixings, mesh, primer and render
- Combines a new look with lower heat loss
- Designed and tested by the system manufacturer
- Through-coloured finishes in hundreds of shades
Local considerations in Penzance
We also cover Camborne and Redruth, close to Penzance. It's roughly 16 miles from Penzance 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.
For houses in Penzance with shallow eaves, the insulated render thickness is planned with the roofline in mind.
- Postcode district
- TR18
- County or area
- Cornwall
- Nation
- England
- Nearby
- Camborne, Redruth, Falmouth, Truro
Planning and building control in England
Before quoting in Penzance, 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.
Is insulated render the same as EWI?
Yes — insulated render is the everyday name for a rendered EWI system. Some people also use it for thin thermal renders containing aerogel or cork, which are applied 20–40mm thick on heritage walls. They insulate far less than board systems, so we treat them as a specialist option.
Insulated render systems prices in Penzance
| Item | Guide price | Notes |
|---|---|---|
| Insulated render (EPS + silicone) | £105–£145 per m²0% VAT | Excluding scaffold |
| Mineral wool insulated render | £125–£170 per m²0% VAT | |
| Contrasting colour features | +£8–£20 per m²0% VAT | Where used |
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
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Insulated render in Penzance: questions
How long does insulated render last?
Typically 25–30 years or more with maintenance; the manufacturer's documentation sets the service life for the specific system.
Does insulated render need painting?
Through-coloured silicone and acrylic renders don't need painting. Mineral renders are usually painted with a compatible masonry paint.
Can insulated render be applied in winter?
Only in suitable weather — typically above 5°C and rising, with no frost or rain during curing. Winter programmes allow for lost days.
Do you cover Penzance?
Yes — we survey and quote insulated render in Penzance (TR18) and nearby Camborne, Redruth and Falmouth, with a fixed written price before any work starts.