Internal wall insulation · Hampshire
Internal wall insulation in Eastleigh
Need internal wall insulation in Eastleigh? Tell us about the property and we'll arrange a free survey and a written quote. Where a property in Eastleigh is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in SO50 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Eastleigh
Postcode, service and a phone number is all we need.
What's included
- Needs careful detailing at floor joists, reveals and corners
- Keeps the outside of the house exactly as it is
- Loses roughly 50–100mm per insulated wall
- Can be done one room at a time during a renovation

What we look for in Eastleigh
Surveys in Eastleigh also cover the surrounding SO50 district and towns such as Southampton and Winchester. It's roughly 5 miles from Eastleigh 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.
We plan internal insulation in Eastleigh homes room by room so you keep the rest of the house usable.
- Postcode district
- SO50
- County or area
- Hampshire
- Nation
- England
- Nearby
- Southampton, Winchester, Totton, Hythe
Planning and building control in England
Internal insulation rarely needs planning permission, but in England and Wales insulating or replastering more than half of a wall's area involves building control, and listed buildings need consent for internal changes that affect their character.
What are the options for internal insulation?
- Insulated plasterboard — PIR or phenolic foam bonded to plasterboard, fixed to the wall and skimmed. Thinnest option.
- Insulated stud wall — a timber or metal frame filled with insulation, with a vapour control layer and plasterboard. Takes more space but runs services easily.
- Wood fibre and lime — breathable boards finished in lime plaster, for older walls that need to manage moisture.
Internal wall insulation prices in Eastleigh
| Item | Guide price | Notes |
|---|---|---|
| Insulated plasterboard, supplied and skimmed | £75–£110 per m²0% VAT | |
| Insulated stud wall | £90–£130 per m²0% VAT | |
| Typical bedroom, one external wall | £1,795–£2,9950% VAT | Including making good |
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.
Internal wall insulation in Eastleigh: questions
What happens to my radiators and sockets?
They're taken off and refitted on the new wall face. Electrical work is done by a qualified electrician.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
Is internal insulation cheaper than external?
Per m² usually yes, but the cost of moving fittings and redecorating narrows the gap on whole-house jobs.
Do you cover Eastleigh?
Yes — we survey and quote internal wall insulation in Eastleigh (SO50) and nearby Southampton, Winchester and Totton, with a fixed written price before any work starts.