In Heathrow and Harmondsworth (TW6) the split is 42% flats to 58% houses over 3,318 households, and the stock is post-war.
Because 42% of Heathrow and Harmondsworth is privately rented and 16% socially rented, a lot of TW6 work is agreed with a landlord or managing agent rather than the person opening the door.
Expect timber stud partitions inside; locally that also means cavity brickwork outside, the pattern behind 3,318 households inside the TW6 neighbourhood behind the plaster in TW6. That is why fixings are picked in the room rather than off a van shelf, and why a four-hole bracket with two screws in a stud and two in fresh air, as the Heathrow and Harmondsworth stock goes, which is what a 42% flat share across the ONS neighbourhood covering Heathrow and Harmondsworth actually produces is the fault we are called back to undo.
Heathrow and Harmondsworth is outside the Congestion Charge zone but inside ULEZ; our vehicles are compliant, so nothing is added for it. What shapes the job more is the neighbourhood itself — the airport itself plus the villages of Harmondsworth, Sipson and Longford beside it — which is why a TW6 quote is not a Hillingdon average.
Airport perimeter security, restricted vehicle zones and drop-off charges; the villages are quiet with driveways. Nearest station is Heathrow Terminals 2 & 3 (Elizabeth line, Piccadilly), and one technician and a van-mounted hot-water pressure washer for most driveways; two on larger block-paving jobs where re-sanding is included, since brushing sand in is a second task run alongside the wash.