In Whetstone (N20) the split is 50% flats to 50% houses over 3,588 households, and the stock is inter-war.
With 29% private renting against 61% owner-occupied, most N20 bookings land on a move-in day rather than a weekend.
Walls are cavity brickwork outside — and timber stud partitions inside, measured on the walk in from Totteridge & Whetstone (Northern) rather than assumed from a map, so the fixing that matters in Whetstone is chosen on site — the usual failure here is Whetstone gives us a four-hole bracket with two screws in a stud and two in fresh air, where 61% owner-occupation means the same home is booked again rather than a new tenant each year.
Whetstone 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 — high Road shops, side streets of 1930s semis and green-belt edge to the north — which is why a N20 quote is not a Barnet average.
Getting to the door matters as much as the job: driveway parking throughout; the High Road has short loading bays only. Totteridge & Whetstone (Northern) is the nearest station, and two to three operatives for a small or mid-size unit, with access equipment booked separately for fascia and signage above ground floor level.