Internal wall insulation · Devon
Internal wall insulation in Plymstock
Looking for internal wall insulation in Plymstock? We survey homes across Plymstock and the PL9 area, then give you a fixed written price before any work starts. We plan internal insulation in Plymstock homes room by room so you keep the rest of the house usable.
- Free survey in PL9 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Plymstock
Postcode, service and a phone number is all we need.
Included as standard
- Insulated plasterboard, stud wall or breathable systems
- Sockets, radiators, skirting and coving are moved and refitted
- Loses roughly 50–100mm per insulated wall
- Can be done one room at a time during a renovation
What we look for in Plymstock
Surveys in Plymstock also cover the surrounding PL9 district and towns such as Plymouth and Paignton. Plymstock is about 2 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 Plymstock is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- PL9
- County or area
- Devon
- Nation
- England
- Nearby
- Plymouth, Paignton, Newton Abbot, Torquay
England: planning and regulations
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.
Do I need Building Regulations approval?
Yes, in England and Wales once you insulate or replaster more than half of a wall's area (or more than a quarter of the building's whole envelope), it's treated as renovating a thermal element. The wall should reach about 0.30 W/m²K where practical, and building control needs to be involved.
Internal wall insulation prices in Plymstock
| 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 Plymstock: questions
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.
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.
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Do you cover Plymstock?
Yes — we survey and quote internal wall insulation in Plymstock (PL9) and nearby Plymouth, Paignton and Newton Abbot, with a fixed written price before any work starts.