I think you'll find this site very helpfull.
Some window washers will give a price per window. Others will price the whole job. Big variation in prices from one company to another.
It depends on window size, Both inside and out or not, One story or more etc.
Example: We sub out one building 2 story 180 windows outside only and it costs us $490.00. We add 15% and bill our customer.
If we do the job we estimate time and charge accordingly. It depends on how much you want to make.
Of course I'm doing commercial work and not residential.
Last edited by Joey D; 12-20-2006 at 11:34 PM.