After a storm the problem is order, not demand. Forty calls in a morning need sequencing by area and by severity, because working through them in the order they arrived means crossing the same town six times.
The van is the difference between one visit and two. Cable, connectors, brackets and the common amplifiers on board mean a fault is finished today rather than revisited at the company's own cost.
Communal contracts carry obligations. A scheduled inspection and a response time agreed with an agent are commitments, and missing them is how a contract that took a year to win is lost in a fortnight.
Notes on the building save hours. Where the head-end equipment lives, which flat has the access hatch and how the roof is reached is information nobody remembers eleven months later.