Flats and blocks · England
EWI for flats and blocks in East Sussex
Quotes for EWI for flats and blocks in East Sussex set out the system, detailing, access and VAT position in writing. For blocks in East Sussex, we start with height, storeys and the planning position, because those decide the system.
- Free survey and fixed written price
- Guide price from £110 per m² + scaffold, 0% VAT
- Planning and building control checked for England
Free survey in East Sussex
Tell us the postcode and what you need.
What the job covers
- Mineral wool systems where building height or guidance requires them
- Planning permission is needed for flats and maisonettes
- Cavity barriers and fire-stopping detailed at compartment floors
- Higher-risk buildings follow the Building Safety Regulator's process in England
- One programme and one finish across the whole building
East Sussex: walls, weather and approvals
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.
Freeholders and managing agents in East Sussex get a written specification and pricing they can share with owners.
- Nation
- England
- Region
- South East
- Towns covered
- Brighton, Hastings, Eastbourne, Hove, Bexhill-on-Sea, Seaford, Crowborough, Portslade
- Guide price
- From £110 per m² + scaffold · 0% VAT
Planning and building control in England
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. Planning permission is usually needed in conservation areas, National Parks, National Landscapes, the Broads and World Heritage Sites (where cladding a house in stone, artificial stone, pebble dash, render, timber, plastic or tiles isn't permitted development), for flats and maisonettes, for commercial buildings, under an Article 4 direction, or where the look changes noticeably. Listed buildings need listed building consent.
Renovating more than half of a wall's area — insulating it, or stripping and re-rendering it — or more than a quarter of the building's whole external envelope brings in the energy requirements of Part L, so building control needs to be involved and the wall should reach about 0.30 W/m²K where that's technically, functionally and economically feasible.
Combustible materials are banned in the external walls of relevant buildings 18 metres and over (regulation 7(2)), and Approved Document B guidance also covers residential buildings with a storey 11 metres or more above ground. Higher-risk buildings go through the Building Safety Regulator.
How disruptive is it for residents?
Most work happens from scaffolding outside. Residents may need to allow brief access to extend window cills, vents or flues from the inside. We provide a notice for residents covering dates, scaffold, and how to raise concerns.
EWI for flats and blocks prices in East Sussex
| Item | Guide price | Notes |
|---|---|---|
| Mineral wool system on a low-rise block | £110–£190 per m²0% VAT | Priced on survey |
| Scaffold and access | Priced per building | Includes licences where needed |
| Specification and pricing pack for consultation | Included with quote |
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.
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.
Flats and blocks in East Sussex: questions
Can one flat have external wall insulation on its own?
Rarely. The outside walls are usually owned by the freeholder, the result would look patchy, and planning is unlikely. Whole-building schemes are the norm.
Who pays for EWI on a leasehold block?
In England and Wales, usually the leaseholders through the service charge, depending on the lease, and the landlord must follow the Section 20 consultation process for major works.
Do flats need planning permission for EWI?
Yes. Permitted development rights for external alterations apply to houses, not flats or maisonettes, so an application is needed.
Do you cover all of East Sussex?
Yes. We survey and quote EWI for flats and blocks across East Sussex, including Brighton, Hastings, Eastbourne, Hove, Bexhill-on-Sea.
Do I need planning permission in England?
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. We check your address before quoting.