Commercial EWI · East Sussex
Commercial and public building EWI in Crowborough
From Crowborough to Tunbridge Wells, we price commercial external wall insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. For commercial premises in Crowborough, we programme the work around opening hours so the building can keep trading.
- Free survey in TN6 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Crowborough
Postcode, service and a phone number is all we need.
Included as standard
- 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
- Clear handover file with system documentation

Before we quote in Crowborough
We also cover Tunbridge Wells and East Grinstead, close to Crowborough. It's roughly 21 miles from Crowborough to Brighton, the largest town in East Sussex. 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 East 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.
Schools and community buildings around Crowborough are usually phased by elevation, with noisy stages in holidays where possible.
- Postcode district
- TN6
- County or area
- East Sussex
- Nation
- England
- Nearby
- Tunbridge Wells, East Grinstead, Tonbridge, Haywards Heath
Approvals in England
For a house in Crowborough, 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.
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.
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 Crowborough
| 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.
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.
Commercial EWI in Crowborough: questions
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 provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
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.
Do you cover Crowborough?
Yes — we survey and quote commercial external wall insulation in Crowborough (TN6) and nearby Tunbridge Wells, East Grinstead and Tonbridge, with a fixed written price before any work starts.