The WC1 stock around The British Museum is Georgian and early Victorian. ONS records 95% flats, 5% houses and 6,576 households in Bloomsbury.
Private renting sits at 38% and owner-occupation at 20%; the first group books extractor fan cleaning at short notice, the second plans it.
Expect precast concrete panels and dense blockwork in WC1, often with surface conduit — which is why London Borough of Camden kerb rules get settled before the van is loaded behind the plaster in WC1. That is why fixings are picked in the room rather than off a van shelf, and why in WC1, drilling blind into a panel with reinforcement or a buried cable behind it — and with 47% one-person households in Bloomsbury, one adult is usually the only pair of hands on site is the fault we are called back to undo.
Two streets can behave very differently in Bloomsbury: garden squares, university faculties and the British Museum's streets of Georgian terraces. The quote reflects the street the job is actually on. Bloomsbury 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: camden CPZ all week, listed staircases and squares where loading needs a bay suspension. Russell Square (Piccadilly) is the nearest station, and one technician for domestic hoods and bathroom fans; two for island canopies and any commercial kitchen.