Hiring a housepainter is like kissing your grandma: you sometimes have to do it, and there may be a mustache on the other end.
We had our lovely bungalow painted two years ago by them. When asking around we were told by a former customer of the process: A whole swarm of people show up and before you know it your house is painted.
On Day 1, an entire army showed up, pouring out of cars at a rate that would make a Shriner clown envious. They had our house wrapped in plastic faster than if ET were sick and inside. Their workmodel was more streamlined than an otter's belly, and talk about clean: after two days, they did not leave a single drop of paint or scrap of paper.
We had a minor issue where a bit of paint peeled. They came out, fixed it to perfection, no problems, no charge.
2 days later our siding, trim and doors looked great, and I have no regrets. And there was no mustache (hint hint grandma), read more