The SE18 stock around The Royal Arsenal and Woolwich Ferry is post-war. ONS records 63% flats, 37% houses and 13,241 households in Woolwich.
Private renting sits at 25% and owner-occupation at 28%; the first group books pathway jet washing at short notice, the second plans it.
Walls are often with surface conduit, over precast concrete panels and dense blockwork — where 28% owner-occupation means the same home is booked again rather than a new tenant each year, so the fixing that matters in Woolwich is chosen on site — the usual failure here is in SE18, drilling blind into a panel with reinforcement or a buried cable behind it — the pattern behind 13,241 households inside the SE18 neighbourhood.
Two streets can behave very differently in Woolwich: the Arsenal's converted barracks, a market town centre and the ferry across the river. The quote reflects the street the job is actually on. Woolwich is outside the Congestion Charge zone but inside ULEZ; our vehicles are compliant, so nothing is added for it.
On access, royal Arsenal estate permits, town-centre one-way loading and booked lifts in the towers — one reason one technician for a private path; two where a communal walkway has to stay open to residents while the work is done, so one can manage access while the other washes. Fitters travelling in use Woolwich (Elizabeth line, DLR).