Non-traditional houses · Hampshire
Non-traditional and concrete house insulation in Portsmouth
Need non-traditional house insulation in Portsmouth? Tell us about the property and we'll arrange a free survey and a written quote. Where one half of a pair in Portsmouth is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Free survey in PO5 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Portsmouth
Postcode, service and a phone number is all we need.
Included as standard
- EWI is not a structural repair for PRC houses designated defective
- Most system-built homes have thin, cold walls and no fillable cavity
- Steel-framed BISF houses need care around the upper-storey cladding
- The survey identifies the construction type before anything is specified
What we look for in Portsmouth
We cover Portsmouth and nearby Gosport, Fareham and Ryde. It's roughly 15 miles from Portsmouth to Southampton, the largest town in Hampshire. 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 Portsmouth is system-built, the first job is confirming the construction type.
- Postcode district
- PO5
- County or area
- Hampshire
- Nation
- England
- Nearby
- Gosport, Fareham, Ryde, Havant
Permissions in England
Planning in Portsmouth follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
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 Portsmouth
| 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
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 Portsmouth: 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 Portsmouth?
Yes — we survey and quote non-traditional house insulation in Portsmouth (PO5) and nearby Gosport, Fareham and Ryde, with a fixed written price before any work starts.