Internal wall insulation · Somerset
Internal wall insulation in Bath
Homeowners and landlords in Bath can get a free survey and a fixed written quote for internal wall insulation, covering BA1 and the surrounding area. Where a property in Bath is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in BA1 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Bath
Postcode, service and a phone number is all we need.
What the job covers
- Loses roughly 50–100mm per insulated wall
- Can be done one room at a time during a renovation
- Needs careful detailing at floor joists, reveals and corners
- Insulated plasterboard, stud wall or breathable systems
Local considerations in Bath
We cover Bath and nearby Trowbridge, Kingswood and Mangotsfield. 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 Somerset: 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 terraced homes in Bath with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- BA1
- County or area
- Somerset
- Nation
- England
- Nearby
- Trowbridge, Kingswood, Mangotsfield, Frome
Approvals 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 Bath
| 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
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 Bath: 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.
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.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Do you cover Bath?
Yes — we survey and quote internal wall insulation in Bath (BA1) and nearby Trowbridge, Kingswood and Mangotsfield, with a fixed written price before any work starts.