Non-traditional houses · Hampshire
Non-traditional and concrete house insulation in Andover
Quotes for non-traditional house insulation in Andover list the system, the detailing and the VAT position in writing, so you know exactly what's included. Where one half of a pair in Andover is insulated and the other isn't, we detail the boundary so the neighbour can join later.
- Free survey in SP10 and nearby
- Guide price from £120 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Andover
Postcode, service and a phone number is all we need.
Included as standard
- Steel-framed BISF houses need care around the upper-storey cladding
- The survey identifies the construction type before anything is specified
- Most system-built homes have thin, cold walls and no fillable cavity
- EWI improves comfort and can renew a tired concrete exterior

What we look for in Andover
Surveys in Andover also cover the surrounding SP10 district and towns such as Winchester and Newbury. Andover is about 22 miles from 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 Andover is system-built, the first job is confirming the construction type.
- Postcode district
- SP10
- County or area
- Hampshire
- Nation
- England
- Nearby
- Winchester, Newbury, Salisbury, Thatcham
Permissions in England
For a house in Andover, 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.
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.
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 Andover
| 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 Andover: 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.
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.
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 Andover?
Yes — we survey and quote non-traditional house insulation in Andover (SP10) and nearby Winchester, Newbury and Salisbury, with a fixed written price before any work starts.