External wall insulation in Penzance
We cover Penzance and nearby Camborne for external wall insulation, with the survey, system choice, building control and finish all set out in one written quote.
Homes in and around Penzance
Penzance is in the TR18 postcode district, about 24 miles from Truro. 4 other towns we cover are within 25 miles.
From Penzance we also cover Camborne (12 miles away), Redruth (16 miles) and Falmouth (21 miles).
Parts of Cornwall see high levels of wind-driven rain, so render specification and the details at sills and the roofline get extra attention.
Nearby towns we cover: Camborne (12 miles), Redruth (16 miles), Falmouth (21 miles), Truro (24 miles).
External wall insulation prices in Penzance
Guide prices for external wall insulation in Penzance run from about £109 to £175 per square metre installed, depending on system and finish; scaffolding priced per house, with VAT at 0% on homes until 31 March 2027.
The final figure depends on wall area, the number of windows and doors, the finish and how much work the roofline, sills and services need.
Popular services in Penzance
- EPS insulated render
- Insulated cladding
- Insulating lime render
- Silicone render finish
- Pebbledash & dry dash EWI
- Non-traditional houses
- Social housing EWI
- EWI for landlords
- EWI repairs
- EWI surveys
- All 24 services
Rules that apply in Penzance
- Planning
- On a house, external wall insulation is usually permitted development if the finish looks similar to the existing walls. Render or cladding on a house in a conservation area, National Park, National Landscape (AONB), the Broads or a World Heritage Site needs planning permission. Flats and maisonettes have no householder permitted development rights, listed buildings need listed building consent, and an Article 4 direction can remove rights locally.
- VAT
- Installing insulation in a home is zero-rated for VAT until 31 March 2027, then 5%.
Checked October 2026. Rules change, so we confirm them for your address at survey.
External wall insulation in Penzance: questions
How much should I budget for external wall insulation in Penzance?
Budget around £109–£175 per square metre of wall for the system and finish, plus scaffolding priced per house. The survey measures your walls in Penzance and fixes the total in writing.
Is VAT charged on external wall insulation in Penzance?
Not on installing insulation in a home at the moment: that's zero-rated until 31 March 2027, after which the rate is due to be 5%. Work on commercial buildings is standard-rated.
Do you cover Camborne as well as Penzance?
Yes. From Penzance we also cover Camborne, Redruth and Falmouth, and the rest of Cornwall.