The W1 stock around The Wallace Collection is Georgian and early Victorian. ONS records 88% flats, 12% houses and 3,555 households in Marylebone.
Owner-occupation runs at 32% in Marylebone, so alongside the 57% rental churn there is steady planned work — refurbishments, downsizes and probate clearances booked weeks ahead.
Expect with metal stud partitions between rooms, over dot-and-dab plasterboard over blockwork — which is what a 88% flat share across the ONS neighbourhood covering Marylebone actually produces behind the plaster in W1. That is why fixings are picked in the room rather than off a van shelf, and why short screws that grip only the board and slowly lever it off the dabs on these streets — the pattern behind 3,555 households inside the W1 neighbourhood is the fault we are called back to undo.
Two streets can behave very differently in Marylebone: village high street, Georgian estate streets and the medical quarter along Harley Street. The quote reflects the street the job is actually on. Marylebone 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: estate-managed streets, single-yellow evening restrictions and mansion blocks with porters and small lifts. Marylebone (Bakerloo, Chiltern Railways) is the nearest station, and one technician; the visit is usually booked alongside an oven or fridge clean to make the London call-out worth it.