Internal wall insulation · Wiltshire
Internal wall insulation in Chippenham
Quotes for internal wall insulation in Chippenham list the system, the detailing and the VAT position in writing, so you know exactly what's included. Where a property in Chippenham is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in SN15 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Chippenham
Postcode, service and a phone number is all we need.
Included as standard
- Sockets, radiators, skirting and coving are moved and refitted
- Loses roughly 50–100mm per insulated wall
- Insulated plasterboard, stud wall or breathable systems
- Keeps the outside of the house exactly as it is

Local considerations in Chippenham
As well as Chippenham itself, we quote in Trowbridge, Bath and Chipping Sodbury. It's roughly 16 miles from Chippenham to Swindon, the largest town in Wiltshire. 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 Wiltshire: 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 Chippenham homes room by room so you keep the rest of the house usable.
- Postcode district
- SN15
- County or area
- Wiltshire
- Nation
- England
- Nearby
- Trowbridge, Bath, Chipping Sodbury, Yate
Planning and building control in England
Planning isn't usually involved with internal insulation. Building control is, once more than half of a wall is treated, and listed buildings need listed building consent.
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 Chippenham
| 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
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Internal wall insulation in Chippenham: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
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 Chippenham?
Yes — we survey and quote internal wall insulation in Chippenham (SN15) and nearby Trowbridge, Bath and Chipping Sodbury, with a fixed written price before any work starts.