Insulated render · Hertfordshire
Insulated render systems in St Albans
If you're planning insulated render in St Albans, start with a free survey: we measure, check the walls and confirm planning and building control for your address. For houses in St Albans with shallow eaves, the insulated render thickness is planned with the roofline in mind.
- Free survey in AL1 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in St Albans
Postcode, service and a phone number is all we need.
Part of every quote
- One system: board, adhesive, fixings, mesh, primer and render
- Combines a new look with lower heat loss
- Suitable for houses, extensions and whole buildings
- Through-coloured finishes in hundreds of shades

What we look for in St Albans
We cover St Albans and nearby Harpenden, Hatfield and Hemel Hempstead. St Albans is about 7 miles from Watford. The East of England has a mix of post-war estates, inter-war semis and older solid brick and flint cottages, with some system-built council homes on post-war estates.
Much of Hertfordshire sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
We bring finish samples to St Albans surveys so colours can be judged in daylight against your roof and windows.
- Postcode district
- AL1
- County or area
- Hertfordshire
- Nation
- England
- Nearby
- Harpenden, Hatfield, Hemel Hempstead, Welwyn Garden City
Planning and building control in England
Planning in St Albans follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
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 St Albans
| 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.
What happens next
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.
Insulated render in St Albans: questions
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.
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.
Will my house look different?
Yes, if it was brick or pebble dash. If you want to keep a brick look, a brick-slip finish over the insulation is an option.
Do you cover St Albans?
Yes — we survey and quote insulated render in St Albans (AL1) and nearby Harpenden, Hatfield and Hemel Hempstead, with a fixed written price before any work starts.