The N4 stock around Finsbury Park itself is mainly Victorian. ONS records 89% flats, 11% houses and 3,957 households in Finsbury Park.
Private renting sits at 26% and owner-occupation at 15%; the first group books blinds and curtain fitting at short notice, the second plans it.
Walls are often with surface conduit, over precast concrete panels and dense blockwork — with 58% social-rented stock locally, block access is agreed with the estate office first, so the fixing that matters in Finsbury Park is chosen on site — the usual failure here is 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.
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 standard windows; two for bent bay tracks or full-height stairwell blinds.