Internal wall insulation · Merseyside
Internal wall insulation in Formby
Homeowners and landlords in Formby can get a free survey and a fixed written quote for internal wall insulation, covering L37 and the surrounding area. We plan internal insulation in Formby homes room by room so you keep the rest of the house usable.
- Free survey in L37 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Formby
Postcode, service and a phone number is all we need.
Included as standard
- Can be done one room at a time during a renovation
- Insulated plasterboard, stud wall or breathable systems
- Loses roughly 50–100mm per insulated wall
- Keeps the outside of the house exactly as it is

Before we quote in Formby
As well as Formby itself, we quote in Crosby, Maghull and Southport. It's roughly 11 miles from Formby to Liverpool, the largest town in Merseyside. 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 Merseyside: 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 Formby with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- L37
- County or area
- Merseyside
- Nation
- England
- Nearby
- Crosby, Maghull, Southport, Bootle
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.
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 Formby
| 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.
What happens next
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 Formby: questions
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.
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 Formby?
Yes — we survey and quote internal wall insulation in Formby (L37) and nearby Crosby, Maghull and Southport, with a fixed written price before any work starts.