Internal wall insulation · Devon
Internal wall insulation in Bideford
If you're planning internal wall insulation in Bideford, start with a free survey: we measure, check the walls and confirm planning and building control for your address. We plan internal insulation in Bideford homes room by room so you keep the rest of the house usable.
- Free survey in EX39 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Bideford
Postcode, service and a phone number is all we need.
Part of every quote
- Needs careful detailing at floor joists, reveals and corners
- Insulated plasterboard, stud wall or breathable systems
- Loses roughly 50–100mm per insulated wall
- Keeps the outside of the house exactly as it is

Bideford: walls, weather and approvals
As well as Bideford itself, we quote in Barnstaple, Exeter and Newton Abbot. Bideford is about 45 miles from Plymouth. 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.
Parts of Devon fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
Where a property in Bideford is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- EX39
- County or area
- Devon
- Nation
- England
- Nearby
- Barnstaple, Exeter, Newton Abbot, Bodmin
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 Bideford
| 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 Bideford: 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.
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 Bideford?
Yes — we survey and quote internal wall insulation in Bideford (EX39) and nearby Barnstaple, Exeter and Newton Abbot, with a fixed written price before any work starts.