welcome to cleaningtalk.com Robin.
The answer to your question lies in the area that you live in.... the national average hovers around .24 cents a sq foot for the combined total of all cleanings (rough/ final)
What do you mean by 'combined total'?
We are bidding on a new construction job. Upscale homes, about 3,500-4,500 sq. ft., 700k price range, they said there are 4 cleaning phases. So do you mean we would bid to where all 4 combined would equal $.24/sq ft.??? Or for EACH phase it would average about $.24/sq ft.???