Mineral wool EWI · East Sussex
Mineral wool external wall insulation in Bexhill-on-Sea
We quote mineral wool external wall insulation for homes in Bexhill-on-Sea (TN40) and nearby Hastings and Eastbourne, with guide prices online and a free survey to fix the price. On blocks and taller buildings in Bexhill-on-Sea, mineral wool is the default because of the fire guidance for external walls.
- Free survey in TN40 and nearby
- Guide price from £125 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Bexhill-on-Sea
Postcode, service and a phone number is all we need.
What the job covers
- Used on blocks of flats and buildings with storeys above 11m
- Heavier than EPS, so more fixings and careful handling
- Better sound reduction than foam boards
- Vapour-open, so moisture in solid walls can dry outwards

Bexhill-on-Sea: walls, weather and approvals
We cover Bexhill-on-Sea and nearby Hastings, Eastbourne and Seaford. It's roughly 27 miles from Bexhill-on-Sea 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.
For homes in Bexhill-on-Sea near busy roads, mineral wool's sound reduction can be a reason to choose it.
- Postcode district
- TN40
- County or area
- East Sussex
- Nation
- England
- Nearby
- Hastings, Eastbourne, Seaford, Crowborough
Planning and building control in England
For a house in Bexhill-on-Sea, 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.
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.
Is mineral wool required on my building?
For most two-storey houses it's a choice rather than a requirement. In England, regulation 7(2) bans combustible materials in the external walls of 'relevant buildings' 18 metres and over, and the Approved Document B guidance also covers residential buildings with a storey at 11 metres or more. Wales has its own amended rules, and Scotland restricts combustible cladding on buildings with a storey more than 11 metres above ground. We specify mineral wool wherever these apply and confirm the system's fire classification in writing.
Mineral wool external wall insulation prices in Bexhill-on-Sea
| Item | Guide price | Notes |
|---|---|---|
| Mineral wool + mineral or silicone render | £125–£170 per m²0% VAT | Excluding scaffold |
| Mineral wool + brick slip | £195–£260 per m²0% VAT | Heavier slip systems need extra fixings |
| Three-bed semi, full house | £11,800–£20,2000% VAT | 80–100 m² of wall, including scaffold |
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.
Mineral wool EWI in Bexhill-on-Sea: questions
Is mineral wool needed for a bungalow?
Rarely for fire reasons. It may still be chosen on a damp-prone solid wall where a vapour-open build-up is wanted.
Can mineral wool EWI have a brick finish?
Yes. Brick slips can be bonded over mineral wool systems designed for them, with additional fixings for the extra weight.
Does mineral wool get wet?
It is water-repellent and protected by the render system. Like any insulation it must not be left exposed to rain during installation, so boards are covered and work stops in wet weather.
Do you cover Bexhill-on-Sea?
Yes — we survey and quote mineral wool external wall insulation in Bexhill-on-Sea (TN40) and nearby Hastings, Eastbourne and Seaford, with a fixed written price before any work starts.