Solid wall insulation · Greater London
Solid wall insulation in Brixton
Solid wall insulation in Brixton: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. On solid-walled houses in Brixton, the gable or the most weather-exposed wall is often the place to start.
- Free survey in SW2 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Brixton
Postcode, service and a phone number is all we need.
What's included
- Breathable options for stone and lime-mortared walls
- In England and Wales, Building Regulations apply when more than half of a wall is treated
- Both can be done in stages, elevation by elevation or room by room
- External insulation keeps room sizes and treats cold bridges well

Brixton: walls, weather and approvals
Surveys in Brixton also cover the surrounding SW2 district and towns such as Peckham and Battersea. 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 Brixton homeowners weighing external against internal insulation, the survey sets out both with prices.
- Postcode district
- SW2
- County or area
- Greater London
- Nation
- England
- Nearby
- Peckham, Battersea, Streatham, Chelsea
England: planning and regulations
Before quoting in Brixton, 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 Brixton
| 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.
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.
Solid wall insulation in Brixton: questions
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.
Is solid wall insulation worth it?
For many solid-walled homes it's one of the biggest single improvements to comfort, because the walls are often the largest heat-loss area. Savings depend on the home and heating, so we don't promise a figure.
Do you cover Brixton?
Yes — we survey and quote solid wall insulation in Brixton (SW2) and nearby Peckham, Battersea and Streatham, with a fixed written price before any work starts.