It is cheaper if everything near or on the walls are also painted and everything hidden behind appliances are skipped.
If you want washer, dryer, water heater to be moved or the painter having to paint behind them, it's more.
If you don't mind the supply pipes, drains, valves, hoses, electrical boxes, tool racks, garage door rails and brackets to be painted as well, cheaper...want them disconnected so the walls can be painted without getting paint on the test, more expensive.
I have seen painters roll over electrical outlets and switches lol.
