Internal wall insulation · Surrey
Internal wall insulation in Caterham
If you're planning internal wall insulation in Caterham, start with a free survey: we measure, check the walls and confirm planning and building control for your address. Where a property in Caterham is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in CR3 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Caterham
Postcode, service and a phone number is all we need.
What's included
- Keeps the outside of the house exactly as it is
- Needs careful detailing at floor joists, reveals and corners
- Loses roughly 50–100mm per insulated wall
- Sockets, radiators, skirting and coving are moved and refitted
Local considerations in Caterham
We also cover Coulsdon and Purley, close to Caterham. Caterham is about 21 miles from Woking. 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 Surrey 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 Caterham with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- CR3
- County or area
- Surrey
- Nation
- England
- Nearby
- Coulsdon, Purley, Redhill, South Croydon
Permissions 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.
What are the risks with internal insulation?
Insulating inside makes the masonry colder, so moisture risk rises. Weak points are where floor joists bear into the wall, window reveals and corners. A condensation risk check for the build-up, a continuous vapour control layer where specified, and returning insulation into reveals deal with most of it.
Internal wall insulation prices in Caterham
| 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
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 Caterham: 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.
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.
Do you cover Caterham?
Yes — we survey and quote internal wall insulation in Caterham (CR3) and nearby Coulsdon, Purley and Redhill, with a fixed written price before any work starts.