Internal wall insulation · Greater London
Internal wall insulation in Muswell Hill
Internal wall insulation in Muswell Hill: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. We plan internal insulation in Muswell Hill homes room by room so you keep the rest of the house usable.
- Free survey in N2 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Muswell Hill
Postcode, service and a phone number is all we need.
What the job covers
- Sockets, radiators, skirting and coving are moved and refitted
- Can be done one room at a time during a renovation
- Needs careful detailing at floor joists, reveals and corners
- Loses roughly 50–100mm per insulated wall
Before we quote in Muswell Hill
We cover Muswell Hill and nearby Wood Green, Archway and Finchley. London's housing includes a large stock of Victorian and Edwardian solid-wall terraces, inter-war semis and post-war blocks, and conservation areas cover many streets — so planning is often the first question for external work.
Much of Greater London sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
For terraced homes in Muswell Hill with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- N2
- County or area
- Greater London
- Nation
- England
- Nearby
- Wood Green, Archway, Finchley, Holloway
England: planning and regulations
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.
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 Muswell Hill
| 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
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Internal wall insulation in Muswell Hill: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
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 Muswell Hill?
Yes — we survey and quote internal wall insulation in Muswell Hill (N2) and nearby Wood Green, Archway and Finchley, with a fixed written price before any work starts.