non-client notification

Tried this in business with no response so trying here. I am often in the position of needing multiple line drops often to three separate houses for one job. I'm curious what best practices are for informing neighbors or asking permission when power needs to be dropped for a client who's home is...

Working in the city I am often in need of dropping 2-3 lines for a single job because of a clients house being near a split in service. I'm curious what best practices are for alerting non-client neighbors whose trees are not going to be worked on but whose lines will need to be down for safe...