Internal wall insulation · Gloucestershire
Internal wall insulation in Cheltenham
We quote internal wall insulation for homes in Cheltenham (GL50) and nearby Gloucester and Stroud, with guide prices online and a free survey to fix the price. Where a property in Cheltenham is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in GL50 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Cheltenham
Postcode, service and a phone number is all we need.
Part of every quote
- 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
Homes and walls in Cheltenham
As well as Cheltenham itself, we quote in Gloucester, Stroud and Evesham. Cheltenham sits around 7 miles from Gloucester. The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Exposure to wind-driven rain varies across Gloucestershire: 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 Cheltenham homes room by room so you keep the rest of the house usable.
- Postcode district
- GL50
- County or area
- Gloucestershire
- Nation
- England
- Nearby
- Gloucester, Stroud, Evesham, Malvern
Approvals 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 risks with internal insulation?
Insulating inside makes the masonry colder, so moisture risk rises. Weak points are where floor joists bear into the wall, window reveals and corners. A condensation risk check for the build-up, a continuous vapour control layer where specified, and returning insulation into reveals deal with most of it.
Internal wall insulation prices in Cheltenham
| 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.
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.
Internal wall insulation in Cheltenham: questions
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.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
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.
Do you cover Cheltenham?
Yes — we survey and quote internal wall insulation in Cheltenham (GL50) and nearby Gloucester, Stroud and Evesham, with a fixed written price before any work starts.