In Holborn (WC1) the split is 95% flats to 5% houses over 3,090 households, and the stock is post-war.
Because 30% of Holborn is privately rented and 51% socially rented, a lot of WC1 work is agreed with a landlord or managing agent rather than the person opening the door.
Holborn substrates run to precast concrete panels and dense blockwork in WC1, often with surface conduit, with 51% social-rented stock locally, block access is agreed with the estate office first. Nothing is drilled until the wall has been sounded, because drilling blind into a panel with reinforcement or a buried cable behind it, as the Holborn stock goes, a median age of 34 in this neighbourhood shapes what gets ordered here is the mistake that costs a WC1 customer twice.
Legal London — the Inns of Court, Lincoln's Inn Fields and Sicilian Avenue. That character decides the practical detail of flat and apartment clearance here far more than the borough boundary does. Holborn 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, inns of Court gate access, weekday loading windows and listed staircases — one reason two crew and a Luton for a studio or one-bed; three crew and a second van on two- and three-bedroom apartments or any duplex. Fitters travelling in use Holborn (Central, Piccadilly).