Flats and blocks · Hertfordshire
EWI for flats and blocks in Borehamwood
We quote EWI for flats and blocks for homes in Borehamwood (WD6) and nearby Barnet and Potters Bar, with guide prices online and a free survey to fix the price. For blocks in Borehamwood, we start with height, storeys and the planning position, because those decide the system.
- Free survey in WD6 and nearby
- Guide price from £110 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Borehamwood
Postcode, service and a phone number is all we need.
Included as standard
- Higher-risk buildings follow the Building Safety Regulator's process in England
- Mineral wool systems where building height or guidance requires them
- Cavity barriers and fire-stopping detailed at compartment floors
- Planning permission is needed for flats and maisonettes

What we look for in Borehamwood
Surveys in Borehamwood also cover the surrounding WD6 district and towns such as Barnet and Potters Bar. It's roughly 5 miles from Borehamwood to Watford, the largest town in Hertfordshire. 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.
Freeholders and managing agents in Borehamwood get a written specification and pricing they can share with owners.
- Postcode district
- WD6
- County or area
- Hertfordshire
- Nation
- England
- Nearby
- Barnet, Potters Bar, Watford, Finchley
Planning and building control in England
For a house in Borehamwood, 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.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
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.
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 Borehamwood
| 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.
What happens next
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Flats and blocks in Borehamwood: questions
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 work on high-rise buildings?
Tell us the height and number of storeys. Buildings in the higher-risk category have a separate regulatory route, and we'll say plainly if we're not the right contractor.
Do you cover Borehamwood?
Yes — we survey and quote EWI for flats and blocks in Borehamwood (WD6) and nearby Barnet, Potters Bar and Watford, with a fixed written price before any work starts.