Non-traditional houses · Hampshire
Non-traditional and concrete house insulation in Southampton
If you're planning non-traditional house insulation in Southampton, start with a free survey: we measure, check the walls and confirm planning and building control for your address. Where one half of a pair in Southampton is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Free survey in SO15 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Southampton
Postcode, service and a phone number is all we need.
What's included
- Most system-built homes have thin, cold walls and no fillable cavity
- Fixing design depends on the panel or frame behind the wall
- EWI improves comfort and can renew a tired concrete exterior
- EWI is not a structural repair for PRC houses designated defective
What we look for in Southampton
We also cover Hythe and Totton, close to Southampton. 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 Hampshire: 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.
Where a home in Southampton is system-built, the first job is confirming the construction type.
- Postcode district
- SO15
- County or area
- Hampshire
- Nation
- England
- Nearby
- Hythe, Totton, Eastleigh, Fareham
Approvals in England
Before quoting in Southampton, 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 Southampton
| 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
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 Southampton: questions
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.
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.
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 Southampton?
Yes — we survey and quote non-traditional house insulation in Southampton (SO15) and nearby Hythe, Totton and Eastleigh, with a fixed written price before any work starts.