Non-traditional houses · Greater London
Non-traditional and concrete house insulation in Bexley
We quote non-traditional house insulation for homes in Bexley (DA5) and nearby Welling and Dartford, with guide prices online and a free survey to fix the price. For concrete houses in Bexley, we report any visible spalling or cracking before quoting the insulation, not after.
- Free survey in DA5 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Bexley
Postcode, service and a phone number is all we need.
What's included
- EWI is not a structural repair for PRC houses designated defective
- The survey identifies the construction type before anything is specified
- Steel-framed BISF houses need care around the upper-storey cladding
- Fixing design depends on the panel or frame behind the wall
What we look for in Bexley
We cover Bexley and nearby Welling, Dartford and Swanley. London's housing includes a large stock of Victorian and Edwardian solid-wall terraces, inter-war semis and post-war blocks, and conservation areas cover many streets — so planning is often the first question for external work.
Much of Greater London 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.
Where one half of a pair in Bexley is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Postcode district
- DA5
- County or area
- Greater London
- Nation
- England
- Nearby
- Welling, Dartford, Swanley, Chislehurst
Permissions in England
For a house in Bexley, 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.
Does EWI fix mortgage problems with PRC houses?
Not on its own. Some precast reinforced concrete (PRC) house types were designated defective, and many lenders want a certified structural repair before they will lend. Insulation and render over the outside is not that repair. Other types, such as Wimpey no-fines, are generally treated differently. If mortgageability matters, speak to your lender or a surveyor before booking any work.
Non-traditional and concrete house insulation prices in Bexley
| Item | Guide price | Notes |
|---|---|---|
| EWI on concrete or steel-framed walls | £120–£180 per m²0% VAT | Includes extra preparation |
| Semi-detached, full house | £11,400–£21,2000% VAT | 80–100 m² of wall, including scaffold |
| Concrete repairs found at survey | Priced separately | Only where needed |
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
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.
Non-traditional houses in Bexley: questions
Can you insulate a Wimpey no-fines house?
Yes. No-fines houses have solid poured-concrete walls with no cavity, so EWI is the usual route. The survey checks the concrete condition first.
Can you put EWI on a BISF house?
Yes, with care. The steel frame and upper-storey cladding need a system and fixing method designed for that construction, and the condition of the frame should be understood first.
What if my neighbour isn't insulating?
We finish the system neatly at the boundary with a closing detail so the neighbouring house isn't affected and can be joined later.
Do you cover Bexley?
Yes — we survey and quote non-traditional house insulation in Bexley (DA5) and nearby Welling, Dartford and Swanley, with a fixed written price before any work starts.