Solid wall insulation · Greater London
Solid wall insulation in Leytonstone
Quotes for solid wall insulation in Leytonstone list the system, the detailing and the VAT position in writing, so you know exactly what's included. For Leytonstone homeowners weighing external against internal insulation, the survey sets out both with prices.
- Free survey in E11 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Leytonstone
Postcode, service and a phone number is all we need.
Part of every quote
- External insulation keeps room sizes and treats cold bridges well
- In England and Wales, Building Regulations apply when more than half of a wall is treated
- Breathable options for stone and lime-mortared walls
- Both can be done in stages, elevation by elevation or room by room

Local considerations in Leytonstone
We also cover Walthamstow and Stratford, close to Leytonstone. 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 solid-walled homes in Leytonstone, we check wall thickness and age first to confirm there's no cavity to fill.
- Postcode district
- E11
- County or area
- Greater London
- Nation
- England
- Nearby
- Walthamstow, Stratford, Ilford, Woodford Green
Planning and building control in England
Before quoting in Leytonstone, we check whether the property is in a conservation area, under an Article 4 direction or listed, because that decides whether changing the outside needs planning permission.
If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.
External or internal — which is better?
External insulation keeps the wall warm, reduces cold bridging at floors and party walls, renews the outside, and doesn't shrink rooms — but it changes the look and needs scaffolding. Internal insulation keeps the façade unchanged and can be done room by room, but loses 50–100mm of floor space per wall and needs careful detailing to avoid condensation at joists and corners.
Solid wall insulation prices in Leytonstone
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
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.
Solid wall insulation in Leytonstone: questions
Can I get a grant for solid wall insulation?
Some schemes cover it for eligible households — for example ECO4 until 31 December 2026, Home Energy Scotland's grant and loan, Wales' Warm Homes Nest and NI's Affordable Warmth Scheme. Each has its own eligibility and installer rules; see our grants guide.
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
Does solid wall insulation cause condensation?
It can if detailed poorly, particularly internally. A condensation risk check for the proposed build-up and careful detailing at joists, reveals and corners avoid it.
Do you cover Leytonstone?
Yes — we survey and quote solid wall insulation in Leytonstone (E11) and nearby Walthamstow, Stratford and Ilford, with a fixed written price before any work starts.