Walk Clerkenwell from The Charterhouse and Exmouth Market outwards and the Georgian and early Victorian pattern is obvious: 94% of the 5,170 households in EC1 live in flats, 6% in houses.
Private renting sits at 36% and owner-occupation at 25%; the first group books blinds and curtain fitting at short notice, the second plans it.
Walls are precast concrete panels and dense blockwork in Clerkenwell, often with surface conduit — and with 36% of homes here privately rented, it sets the booking date as often as the job does, so the fixing that matters in Clerkenwell is chosen on site — the usual failure here is in EC1, drilling blind into a panel with reinforcement or a buried cable behind it — the pattern behind 5,170 households inside the EC1 neighbourhood.
Two streets can behave very differently in Clerkenwell: design studios, Italian delis and Georgian squares on the City's north-west edge. The quote reflects the street the job is actually on. Clerkenwell 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, narrow one-way streets, seven-day controlled bays and warehouse lofts up several flights of stairs — one reason one fitter for standard windows; two for bent bay tracks or full-height stairwell blinds. Fitters travelling in use Farringdon (Elizabeth line, Circle, Thameslink).