Internal wall insulation · Wiltshire
Internal wall insulation in Swindon
Looking for internal wall insulation in Swindon? We survey homes across Swindon and the SN1 area, then give you a fixed written price before any work starts. For terraced homes in Swindon with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey in SN1 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Swindon
Postcode, service and a phone number is all we need.
What the job covers
- Loses roughly 50–100mm per insulated wall
- Needs careful detailing at floor joists, reveals and corners
- Keeps the outside of the house exactly as it is
- Insulated plasterboard, stud wall or breathable systems
Local considerations in Swindon
As well as Swindon itself, we quote in Chippenham, Witney and Stroud. 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.
Where a property in Swindon is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- SN1
- County or area
- Wiltshire
- Nation
- England
- Nearby
- Chippenham, Witney, Stroud, Newbury
Permissions 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 Swindon
| 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 Swindon: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
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.
Do you cover Swindon?
Yes — we survey and quote internal wall insulation in Swindon (SN1) and nearby Chippenham, Witney and Stroud, with a fixed written price before any work starts.