Solid wall insulation · Hampshire
Solid wall insulation in Andover
Need solid wall insulation in Andover? Tell us about the property and we'll arrange a free survey and a written quote. For Andover homeowners weighing external against internal insulation, the survey sets out both with prices.
- Free survey in SP10 and nearby
- Guide price from £75 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.
What you get
- Internal insulation suits single rooms or where the outside can't change
- Breathable options for stone and lime-mortared walls
- External insulation keeps room sizes and treats cold bridges well
- In England and Wales, Building Regulations apply when more than half of a wall is treated
Andover: walls, weather and approvals
We cover Andover and nearby Winchester, Newbury and Salisbury. It's roughly 22 miles from Andover 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.
For solid-walled homes in Andover, we check wall thickness and age first to confirm there's no cavity to fill.
- Postcode district
- SP10
- County or area
- Hampshire
- Nation
- England
- Nearby
- Winchester, Newbury, Salisbury, Thatcham
Approvals in England
Before quoting in Andover, 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.
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.
External or internal — which is better?
External insulation keeps the wall warm, reduces cold bridging at floors and party walls, renews the outside, and doesn't shrink rooms — but it changes the look and needs scaffolding. Internal insulation keeps the façade unchanged and can be done room by room, but loses 50–100mm of floor space per wall and needs careful detailing to avoid condensation at joists and corners.
Solid wall insulation prices in Andover
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
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
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.
Solid wall insulation in Andover: questions
Does solid wall insulation cause condensation?
It can if detailed poorly, particularly internally. A condensation risk check for the proposed build-up and careful detailing at joists, reveals and corners avoid it.
Can I get a grant for solid wall insulation?
Some schemes cover it for eligible households — for example ECO4 until 31 December 2026, Home Energy Scotland's grant and loan, Wales' Warm Homes Nest and NI's Affordable Warmth Scheme. Each has its own eligibility and installer rules; see our grants guide.
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
Do you cover Andover?
Yes — we survey and quote solid wall insulation in Andover (SP10) and nearby Winchester, Newbury and Salisbury, with a fixed written price before any work starts.