To me, it’s that fine line between hours worked and money earned.
Let me just say a window cleaner I know makes around $60K (depending on when the snow falls) pre tax, after expenses. He averages 4 days/week, 7-8 hours per day, from April to the first week of December. One day a week December-March. So basically a max of 30-35 hours/week, although this fall it has only been 25 hours per week.
Yes, he has two PT employees who only want to work a couple days per week.
Is there a lot more potential there? Absolutely. Why not 10 hours/day 5 days/week?
Maybe because he spends his work days dreaming of doing something else.
But there you go, OP. The numbers you discussed are realistic. Two caveats: its 80% residential, and 25% of the business involves a Pressure washer.