Internal wall insulation · Kent
Internal wall insulation in Deal
Homeowners and landlords in Deal can get a free survey and a fixed written quote for internal wall insulation, covering CT14 and the surrounding area. We plan internal insulation in Deal homes room by room so you keep the rest of the house usable.
- Free survey in CT14 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Deal
Postcode, service and a phone number is all we need.
Part of every quote
- Sockets, radiators, skirting and coving are moved and refitted
- Loses roughly 50–100mm per insulated wall
- Needs careful detailing at floor joists, reveals and corners
- Insulated plasterboard, stud wall or breathable systems

Local considerations in Deal
We cover Deal and nearby Dover, Ramsgate and Broadstairs. Deal is about 38 miles from Maidstone. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.
Much of Kent 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.
Where a property in Deal is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- CT14
- County or area
- Kent
- Nation
- England
- Nearby
- Dover, Ramsgate, Broadstairs, Margate
Planning and building control in England
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 Deal
| 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
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 Deal: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
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.
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 Deal?
Yes — we survey and quote internal wall insulation in Deal (CT14) and nearby Dover, Ramsgate and Broadstairs, with a fixed written price before any work starts.