The SW1 stock around Tate Britain is post-war. ONS records 93% flats, 7% houses and 7,917 households in Pimlico.
Private renting sits at 39% and owner-occupation at 27%; the first group books mattress cleaning at short notice, the second plans it.
Walls are precast concrete panels and dense blockwork in SW1, often with surface conduit — a median age of 36 in this neighbourhood shapes what gets ordered here, so the fixing that matters in Pimlico is chosen on site — the usual failure here is in SW1, drilling blind into a panel with reinforcement or a buried cable behind it — measured on the walk in from Pimlico (Victoria) rather than assumed from a map.
Two streets can behave very differently in Pimlico: cubitt's white stucco grid between Victoria and the river, quieter than its neighbours. The quote reflects the street the job is actually on. Pimlico 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, resident-permit streets all week, basement flats down steep steps and no lifts in most conversions — one reason one technician with a portable extraction machine and air mover on a single household booking; two technicians on HMO, student accommodation and serviced-apartment rounds where six or more mattresses are cleaned in a day. Fitters travelling in use Pimlico (Victoria).