Non-traditional houses · Hertfordshire
Non-traditional and concrete house insulation in Borehamwood
We quote non-traditional house insulation for homes in Borehamwood (WD6) and nearby Barnet and Potters Bar, with guide prices online and a free survey to fix the price. Where a home in Borehamwood is system-built, the first job is confirming the construction type.
- Free survey in WD6 and nearby
- Guide price from £120 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
- EWI improves comfort and can renew a tired concrete exterior
- Most system-built homes have thin, cold walls and no fillable cavity
- The survey identifies the construction type before anything is specified
- Fixing design depends on the panel or frame behind the wall

Borehamwood: walls, weather and approvals
As well as Borehamwood itself, we quote in Barnet, Potters Bar and Watford. 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.
For concrete houses in Borehamwood, we report any visible spalling or cracking before quoting the insulation, not after.
- Postcode district
- WD6
- County or area
- Hertfordshire
- Nation
- England
- Nearby
- Barnet, Potters Bar, Watford, Finchley
Approvals 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.
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 Borehamwood
| 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.
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.
Non-traditional houses in Borehamwood: questions
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.
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 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.
Do you cover Borehamwood?
Yes — we survey and quote non-traditional house insulation in Borehamwood (WD6) and nearby Barnet, Potters Bar and Watford, with a fixed written price before any work starts.