this was the estimate i received and well - hard to describe area - double hight ceiling entry foyer plus stairway up to hallway. painted hallway as well with 2 coats plus did a coat of white over all trim/molding/door frames - 6 of them - and repaired some minor molding cracks. we are supplying the paint. at first i thought this was high but then, well, it was better than doing it myself and the painter was highly recommended and he's very nice.
restaurant dining area an behind front counter area. Fixed cracks in wall, taped off flooring, several windows (7 large windows,4 small windows) 2 doors, had to cover camera's, ceiling, fans, lights, tables-chairs, had to move plants , paper racks, clocks, etc. things to another room, took all blinds down, dusted everything off from top to bottom then wash walls first, then primer then paint walls an ceiling, used 3 colors of paint for trim an walls, used my own paint sprayer, i also cleaned behind the counter area before i could paint, an when all done I put everything back the way it was oh an also had to work around pushed together tables an chairs, also plastic everything. owner paint for paint an supplies. Me an another person put in a total of 55 hours in in 2 days we had (combined hours) we did excellent work but could use a few numbers to charge without over charging Im a very fair person. Il say the place was the size of about a Mc Donalds behind counter an dining area
Whether doing it yourself or hiring someone, buy the best quality paint you can afford; it lasts longer and in some situations requires only one coat of paint instead of two. Painting a room usually involves prep work, primer and latex or alkyd paints with a range of finishes. HGTV.com gives a quick overview  as well as a list of painting dos and don'ts .
"C&A was not the cheapest company, but it was the only one that offered full service (removal of waste and carpet installation), and showed some real interest. Furthermore, the sales representative was on-time, polite, and always available. The finished job looks great, the crew was on top of its work, and they left after cleaning thoroughly, which not that many companies care to do. I highly recommend them."