The W1 stock around Berkeley Square is mixed-era. ONS records 88% flats, 12% houses and 3,555 households in Mayfair.
57% of households rent privately and 32% own, which is why restaurant and cafe clearance demand here peaks around tenancy changeovers and completion dates.
Walls are dot-and-dab plasterboard over blockwork in W1, with metal stud partitions between rooms — where 32% owner-occupation means the same home is booked again rather than a new tenant each year, so the fixing that matters in Mayfair is chosen on site — the usual failure here is in W1, short screws that grip only the board and slowly lever it off the dabs — which is why Westminster City Council kerb rules get settled before the van is loaded.
Two streets can behave very differently in Mayfair: grosvenor and Berkeley squares, private members' clubs and the flagship stores of Bond Street. The quote reflects the street the job is actually on. Mayfair 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: extremely tight kerbside, mews arches under 2.1m and listed interiors needing floor and stair protection. Bond Street (Central, Jubilee, Elizabeth line) is the nearest station, and two to three operatives as standard, with a specialist F-gas engineer booked in for any unit holding refrigerant-charged equipment.