Walk Shadwell from Shadwell Basin outwards and the post-war pattern is obvious: 92% of the 5,744 households in E1 live in flats, 8% in houses.
Private renting sits at 34% and owner-occupation at 25%; the first group books mattress cleaning at short notice, the second plans it.
Walls are often with surface conduit — and precast concrete panels and dense blockwork — which is what a 92% flat share across the ONS neighbourhood covering Shadwell actually produces, so the fixing that matters in Shadwell is chosen on site — the usual failure here is in E1, drilling blind into a panel with reinforcement or a buried cable behind it — the pattern behind 5,744 households inside the E1 neighbourhood.
Two streets can behave very differently in Shadwell: basin flats, Watney Market and the streets between Whitechapel and the river. The quote reflects the street the job is actually on. Shadwell 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, the Highway red route, cycle-superhighway kerb build-outs and estate lift booking — one reason one technician with a portable extraction machine and air mover on a single household booking; two technicians on HMO, student accommodation and serviced-apartment rounds where six or more mattresses are cleaned in a day. Fitters travelling in use Shadwell (DLR, Overground).