The UB10 stock around Hillingdon Hospital and Hillingdon Court Park is inter-war. ONS records 19% flats, 81% houses and 9,151 households in Hillingdon.
Private renting sits at 23% and owner-occupation at 61%; the first group books spring cleaning at short notice, the second plans it.
Walls are timber stud partitions inside in UB10, cavity brickwork outside — which is why London Borough of Hillingdon kerb rules get settled before the van is loaded, so the fixing that matters in Hillingdon is chosen on site — the usual failure here is in UB10, a four-hole bracket with two screws in a stud and two in fresh air — with 16% social-rented stock locally, block access is agreed with the estate office first.
Two streets can behave very differently in Hillingdon: suburban streets between Uxbridge and Ickenham, with the hospital nearby. The quote reflects the street the job is actually on. Hillingdon is outside the Congestion Charge zone but inside ULEZ; our vehicles are compliant, so nothing is added for it.
Getting to the door matters as much as the job: wide roads and driveways throughout; the A40 junctions congest at peak. Hillingdon (Metropolitan, Piccadilly) is the nearest station, and two cleaners for a flat, two to three for a house, working together in one visit rather than spreading the job across days.