Non-traditional houses · Greater London
Non-traditional and concrete house insulation in Mitcham
From Mitcham to Morden, we price non-traditional house insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. Where a home in Mitcham is system-built, the first job is confirming the construction type.
- Free survey in CR4 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Mitcham
Postcode, service and a phone number is all we need.
What the job covers
- EWI is not a structural repair for PRC houses designated defective
- EWI improves comfort and can renew a tired concrete exterior
- Steel-framed BISF houses need care around the upper-storey cladding
- Most system-built homes have thin, cold walls and no fillable cavity

Before we quote in Mitcham
Surveys in Mitcham also cover the surrounding CR4 district and towns such as Morden and Wimbledon. 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.
For concrete houses in Mitcham, we report any visible spalling or cracking before quoting the insulation, not after.
- Postcode district
- CR4
- County or area
- Greater London
- Nation
- England
- Nearby
- Morden, Wimbledon, Streatham, Carshalton
Permissions in England
Before quoting in Mitcham, we check whether the property is in a conservation area, under an Article 4 direction or listed, because that decides whether changing the outside needs planning permission.
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.
What does the work involve?
After checking the wall condition, any spalling concrete or corroded steel is reported before boards go on. Fixings are chosen for the substrate — concrete, steel-framed panels or mixed constructions — and the system is detailed around eaves, cills and the junction with neighbouring properties, which may not be insulated.
Non-traditional and concrete house insulation prices in Mitcham
| 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.
From enquiry to finished wall
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 Mitcham: questions
Will EWI make my house mortgageable?
It can make a house more attractive and better insulated, but it does not replace a certified structural repair where a lender requires one. Ask your lender before relying on it.
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 Mitcham?
Yes — we survey and quote non-traditional house insulation in Mitcham (CR4) and nearby Morden, Wimbledon and Streatham, with a fixed written price before any work starts.