Walk Chiswick from Chiswick House and Gardens outwards and the mainly Victorian pattern is obvious: 57% of the 15,273 households in W4 live in flats, 43% in houses.
34% of households rent privately and 51% own, which is why BBQ cleaning demand here peaks around tenancy changeovers and completion dates.
Chiswick substrates run to dot-and-dab plasterboard over blockwork; locally that also means with metal stud partitions between rooms — which is what a 57% flat share across the ONS neighbourhood covering Chiswick actually produces. Nothing is drilled until the wall has been sounded, because short screws that grip only the board and slowly lever it off the dabs on these streets — which is why London Borough of Hounslow kerb rules get settled before the van is loaded is the mistake that costs a W4 customer twice.
Two streets can behave very differently in Chiswick: chiswick House, the riverside and Bedford Park's Arts and Crafts streets. The quote reflects the street the job is actually on. Chiswick is outside the Congestion Charge zone but inside ULEZ; our vehicles are compliant, so nothing is added for it.
On access, conservation-area rules, A4 red route and very tight CPZ around Turnham Green — one reason one technician with a van-mounted dip tank; two where a barbecue has to be carried through a flat to reach a terrace. Fitters travelling in use Turnham Green (District, Piccadilly).