Non-traditional houses · East Sussex
Non-traditional and concrete house insulation in Crowborough
Need non-traditional house insulation in Crowborough? Tell us about the property and we'll arrange a free survey and a written quote. Where one half of a pair in Crowborough is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Free survey in TN6 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Crowborough
Postcode, service and a phone number is all we need.
What you get
- Steel-framed BISF houses need care around the upper-storey cladding
- EWI improves comfort and can renew a tired concrete exterior
- Most system-built homes have thin, cold walls and no fillable cavity
- EWI is not a structural repair for PRC houses designated defective

Crowborough: walls, weather and approvals
We cover Crowborough and nearby Tunbridge Wells, East Grinstead and Tonbridge. Crowborough is about 21 miles from Brighton. 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.
Exposure to wind-driven rain varies across East Sussex: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
For concrete houses in Crowborough, we report any visible spalling or cracking before quoting the insulation, not after.
- Postcode district
- TN6
- County or area
- East Sussex
- Nation
- England
- Nearby
- Tunbridge Wells, East Grinstead, Tonbridge, Haywards Heath
Planning and building control in England
Before quoting in Crowborough, 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.
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.
How do I know if my house is non-traditional?
Clues include concrete panels or posts visible at corners, a smooth concrete or rendered finish on houses of a 1940s–1960s estate, steel sheeting on the upper storey, or a mortgage valuation that mentioned the construction type. Common types include Wimpey no-fines (poured concrete), Airey and Cornish Unit (precast reinforced concrete), Reema, Orlit and BISF (steel frame). We identify the type during the survey.
Non-traditional and concrete house insulation prices in Crowborough
| 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
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 Crowborough: 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 Crowborough?
Yes — we survey and quote non-traditional house insulation in Crowborough (TN6) and nearby Tunbridge Wells, East Grinstead and Tonbridge, with a fixed written price before any work starts.