Walk Finsbury Park from Finsbury Park itself outwards and the mainly Victorian pattern is obvious: 89% of the 3,957 households in N4 live in flats, 11% in houses.
Private renting sits at 26% and owner-occupation at 15%; the first group books cat flap fitting at short notice, the second plans it.
Finsbury Park substrates run to precast concrete panels and dense blockwork; locally that also means often with surface conduit — which is what a 89% flat share across the ONS neighbourhood covering Finsbury Park actually produces. Nothing is drilled until the wall has been sounded, because in N4, drilling blind into a panel with reinforcement or a buried cable behind it — which is why London Borough of Islington kerb rules get settled before the van is loaded is the mistake that costs a N4 customer twice.
Two streets can behave very differently in Finsbury Park: park, festival site and transport interchange ringed by dense Victorian terraces. The quote reflects the street the job is actually on. Finsbury Park sits inside the Congestion Charge zone as well as ULEZ, so both are itemised on the quote rather than absorbed into an hourly rate.
Getting to the door matters as much as the job: interchange congestion, event-day closures and terraced streets with permit bays only. Finsbury Park (Victoria, Piccadilly, National Rail) is the nearest station, and 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.