The SW1 stock around The Palace of Westminster is period conversion. ONS records 95% flats, 5% houses and 3,927 households in Westminster and Whitehall.
44% of households rent privately and 28% own, which is why fridge and freezer disposal demand here peaks around tenancy changeovers and completion dates.
Westminster and Whitehall substrates run to dot-and-dab plasterboard over blockwork in SW1, with metal stud partitions between rooms — measured on the walk in from Westminster (Circle, District, Jubilee) rather than assumed from a map. Nothing is drilled until the wall has been sounded, because in SW1, short screws that grip only the board and slowly lever it off the dabs — the pattern behind 3,927 households inside the SW1 neighbourhood is the mistake that costs a SW1 customer twice.
Two streets can behave very differently in Westminster and Whitehall: government quarter around Parliament Square, Whitehall and Smith Square. The quote reflects the street the job is actually on. Westminster and Whitehall sits inside the Congestion Charge zone as well as ULEZ, so both are itemised on the quote rather than absorbed into an hourly rate.
On access, security cordons, camera-controlled streets and pre-notified vehicle access on many roads — one reason one or two crew depending on access; American-style and full-height units on an upper floor with no lift are booked as a two-person job as standard. Fitters travelling in use Westminster (Circle, District, Jubilee).