Commerial "specialty cleaning" bid
I have owned a cleaning company for about 2 years. Up until now I have only done post-construction clean up for new residential builders.
I now have the opportunity to submit a bid for commercial specialty cleaning 2x a year. They would like the ceiling light fixtures cleaned. This would require getting on a ladder and there are approx. 250. I have never submitted a bid like this. All the work before was hourly. Any idea what to charge? The lights are about 2 feet x 6-8 inches.
Also, they would like the indoor windows and the windows surrounding the office doors cleaned. I have never priced a window job before. Is there a price per pane based on size rule of thumb?
Also, are these accurate?
Post construction clean up - somewhat clean 0.25 per sq/ft
dirty 0.30-0.40 sq/ft?
Commercial office cleanings - $1.00/sq ft? 15,000 sq/ft.
5/nights a week which entails - empty trash, dust mop, vacuum as necessary, dusting, spot clean floors and glass, wipe down kitchenettes.
Any guidance is greatly appreciated. Thank you for your time.