Flats and blocks · Kent
EWI for flats and blocks in Dartford
EWI for flats and blocks in Dartford: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. For blocks in Dartford, we start with height, storeys and the planning position, because those decide the system.
- Free survey in DA1 and nearby
- Guide price from £110 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Dartford
Postcode, service and a phone number is all we need.
What you get
- One programme and one finish across the whole building
- Planning permission is needed for flats and maisonettes
- Cavity barriers and fire-stopping detailed at compartment floors
- We work with managing agents on resident communication

Before we quote in Dartford
We also cover Bexley and Swanley, close to Dartford. Dartford is about 18 miles from Maidstone. 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.
Much of Kent 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.
On mixed-tenure blocks in Dartford, we agree access and resident notices with the managing agent before scaffold goes up.
- Postcode district
- DA1
- County or area
- Kent
- Nation
- England
- Nearby
- Bexley, Swanley, Welling, Grays
England: planning and regulations
Planning in Dartford 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.
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.
What fire-safety rules apply?
For blocks with a storey 11 metres or more above ground, guidance points to external wall materials of limited combustibility, and combustible materials are banned in the external walls of relevant buildings 18 metres and over in England. Higher-risk buildings (18 metres or seven storeys and above, with at least two homes) go through the Building Safety Regulator. We specify non-combustible systems wherever these apply and tell you at enquiry stage if a building is outside our scope.
EWI for flats and blocks prices in Dartford
| 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
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.
Flats and blocks in Dartford: questions
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.
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.
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 Dartford?
Yes — we survey and quote EWI for flats and blocks in Dartford (DA1) and nearby Bexley, Swanley and Welling, with a fixed written price before any work starts.