Internal wall insulation · England
Internal wall insulation in Greater Manchester
We provide internal wall insulation across Greater Manchester, including Manchester, Oldham and Wigan, with a free survey and fixed written price. For terraced homes in Greater Manchester with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey and fixed written price
- Guide price from £75 per m² 0% VAT
- Planning and building control checked for England
Free survey in Greater Manchester
Tell us the postcode and what you need.
What you get
- Needs careful detailing at floor joists, reveals and corners
- Insulated plasterboard, stud wall or breathable systems
- Can be done one room at a time during a renovation
- Sockets, radiators, skirting and coving are moved and refitted
- Loses roughly 50–100mm per insulated wall
Greater Manchester: walls, weather and approvals
The North West has one of the largest stocks of pre-1919 solid-wall terraces in England, alongside Pennine stone houses and post-war estates.
Exposure to wind-driven rain varies across Greater Manchester: 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 Greater Manchester with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Nation
- England
- Region
- North West
- Towns covered
- Manchester, Oldham, Wigan, Bolton, Stockport, Salford, Rochdale, Bury…
- Guide price
- From £75 per m² 0% VAT
Approvals 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.
Renovating more than half of a wall's area — insulating it, or stripping and re-rendering it — or more than a quarter of the building's whole external envelope brings in the energy requirements of Part L, so building control needs to be involved and the wall should reach about 0.30 W/m²K where that's technically, functionally and economically feasible.
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 Greater Manchester
| 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 Greater Manchester: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
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.
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 all of Greater Manchester?
Yes. We survey and quote internal wall insulation across Greater Manchester, including Manchester, Oldham, Wigan, Bolton, Stockport.
Do I need planning permission in England?
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. We check your address before quoting.