Finchley's N3 and N12 streets are full of 1930s semis and Edwardian houses — a housing stock where solid-wall construction is common and cavity insulation often isn't an option.
Where there's no cavity, the heat escapes through the brick itself. External wall insulation is the right answer for these Finchley homes: an insulating layer fixed to the outside and finished in render, keeping rooms warmer for longer and lifting the appearance of an older property.
EWI is a continuous insulating layer fixed to the outside of your home, finished with a weatherproof render. Because it sits outside, your rooms keep their floor space, and the masonry stays warmer.
We don't quote specific savings figures — your surveyor explains what results are realistic for your property.
A real surveyor visits, measures up and checks wall build-up, damp risks, access and planning context. You receive an itemised written quote covering the system, render type, detailing and scaffolding. We install boards, reinforcing mesh and render with a daily clean-down, then finish with inspection, sign-off and warranty paperwork.
Most Finchley semis already carry render or pebbledash on the first floor over a brick ground floor. An EWI system unifies the whole elevation: the tired upper finish is renewed and the cold brick below finally gets insulated, in one scaffold. Where render is already present, the survey checks how well it is keyed to the wall, because a sound existing coat can sometimes be boarded over while a blown one must come off first.
Church End's conservation area around St Mary's needs a planning check before street-facing work, and towards East Finchley the Hampstead Garden Suburb boundary brings the Trust's much stricter rules, which we flag at survey.
We serve Church End, North Finchley, East Finchley and the surrounding N2, N3 and N12 postcodes, specialising in older solid-wall homes.
Usually, yes. Internal insulation eats into room space and is disruptive inside; external insulation keeps your floor area and treats the whole wall — but the survey confirms what suits your property.
Only if it is failing. The surveyor tests adhesion, and sound render can often stay beneath the new insulated system, which keeps cost and mess down.
We specialise in solid-wall and period homes across London and surrounding areas, including:
One short form. One real surveyor. Zero pressure.