Commercial EWI · West Sussex
Commercial and public building EWI in East Grinstead
Quotes for commercial external wall insulation in East Grinstead list the system, the detailing and the VAT position in writing, so you know exactly what's included. Schools and community buildings around East Grinstead are usually phased by elevation, with noisy stages in holidays where possible.
- Free survey in RH19 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in East Grinstead
Postcode, service and a phone number is all we need.
Part of every quote
- Clear handover file with system documentation
- Contract roles under CDM 2015 agreed at the start
- Programmes phased around opening hours and term dates
- Colour and texture options to suit brand or setting

Local considerations in East Grinstead
We cover East Grinstead and nearby Horley, Crawley and Crowborough. East Grinstead sits around 8 miles from Crawley. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.
Exposure to wind-driven rain varies across West Sussex: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
We provide drawings and finish samples for planning applications on East Grinstead commercial buildings.
- Postcode district
- RH19
- County or area
- West Sussex
- Nation
- England
- Nearby
- Horley, Crawley, Crowborough, Haywards Heath
Planning and building control in England
Planning in East Grinstead 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.
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.
On residential buildings with a storey 11 metres or more above ground, guidance points to non-combustible external wall materials, and combustible materials are banned in relevant buildings 18 metres and over, so we specify mineral wool systems there.
Which system suits a commercial building?
The building's height, use (for example, residential or assembly use) and fire strategy shape the choice. Mineral wool systems are typical for multi-storey and public buildings; EPS may suit single-storey units. The system manufacturer's classification is confirmed in writing.
Commercial and public building EWI prices in East Grinstead
| Item | Guide price | Notes |
|---|---|---|
| Insulated render system | £110–£200 per m²+ VAT | Priced on survey |
| Render refurbishment without insulation | £55–£95 per m²+ VAT | Silicone or mineral |
| Access and scaffold | Per building | Includes edge protection |
Confirmed by a fixed written quote after survey. Business prices shown before VAT, which is added at 20%. Buildings used solely for a relevant charitable purpose can qualify for 0% on insulation.
How it works
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Commercial EWI in East Grinstead: questions
Do you handle the planning application?
We provide the technical information, drawings and samples an application needs; your agent or our designer can submit it.
Is VAT 0% on commercial insulation?
Usually not. The zero rate covers insulation installed in residential accommodation and, since 1 February 2024, buildings used solely for a relevant charitable purpose, such as many charity-run village halls. Other commercial work is standard-rated.
Can the building stay open during the works?
Usually, yes. The work is phased and the scaffold layout keeps entrances and escape routes clear.
Do you cover East Grinstead?
Yes — we survey and quote commercial external wall insulation in East Grinstead (RH19) and nearby Horley, Crawley and Crowborough, with a fixed written price before any work starts.