Walk Bromley-by-Bow from Three Mills Island on the River Lea outwards and the mainly Victorian pattern is obvious: 92% of the 9,307 households in E3 live in flats, 8% in houses.
30% of households rent privately and 23% own, which is why cat flap fitting demand here peaks around tenancy changeovers and completion dates.
Walls are precast concrete panels and dense blockwork in E3, often with surface conduit — and with 30% one-person households in Bromley-by-Bow, one adult is usually the only pair of hands on site, so the fixing that matters in Bromley-by-Bow is chosen on site — the usual failure here is in E3, drilling blind into a panel with reinforcement or a buried cable behind it — which is why London Borough of Tower Hamlets kerb rules get settled before the van is loaded.
Two streets can behave very differently in Bromley-by-Bow: the Lea navigation, the gasworks site and estates between Bow and the Olympic fringe. The quote reflects the street the job is actually on. Bromley-by-Bow sits inside the Congestion Charge zone as well as ULEZ, so both are itemised on the quote rather than absorbed into an hourly rate.
On access, a12 severance, estate service roads with height barriers and lift-only access in most blocks — one reason one fitter for doors and panels; two where a wall tunnel is core-drilled and the debris has to be carried out of a flat. Fitters travelling in use Bromley-by-Bow (District, Hammersmith & City).