Internal wall insulation · Devon
Internal wall insulation in Plymouth
We quote internal wall insulation for homes in Plymouth (PL2) and nearby Plymstock and Paignton, with guide prices online and a free survey to fix the price. We plan internal insulation in Plymouth homes room by room so you keep the rest of the house usable.
- Free survey in PL2 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Plymouth
Postcode, service and a phone number is all we need.
Part of every quote
- Can be done one room at a time during a renovation
- Insulated plasterboard, stud wall or breathable systems
- Needs careful detailing at floor joists, reveals and corners
- Loses roughly 50–100mm per insulated wall
Before we quote in Plymouth
Surveys in Plymouth also cover the surrounding PL2 district and towns such as Plymstock and Paignton. 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.
For terraced homes in Plymouth with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- PL2
- County or area
- Devon
- Nation
- England
- Nearby
- Plymstock, Paignton, Newton Abbot, Bodmin
Planning and building control 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 Plymouth
| 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
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 Plymouth: 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.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Do you cover Plymouth?
Yes — we survey and quote internal wall insulation in Plymouth (PL2) and nearby Plymstock, Paignton and Newton Abbot, with a fixed written price before any work starts.