I was a professional painter way way back for a company. Now I am dabbling in working around the neighborhood here and there and needed to know how much I should charge. I recently painted an entire home including woodwork / doors / windows/ baseboards and the paint costs $230 ish and I did it free for my best friend . It took me 4 days to do . 7am-9pm . It turned out absolutely beautiful , and every room was a different color .
That said... the lower price that people get from me does not include the assurances that accompany an insured professional. These people take a risk everytime they let me into their home, because if I trip down the stairs and break my back, it is they homeowners insurance that is on the line. If I stupidly step onto a granite countertop overhange and snap it, I have not liability insurance to sue.
Don't hesitate to ask all the questions you need to feel comfortable hiring a professional. You can also ask 3-4 professionals to make sure you have the right quote in mind. You must make sure they have a warranty or some kind of paperwork stipulating the quality of their jobs. Insurance is also a #1 priority to consider, as damage can happen in the process of painting.
"We are very pleased. The bid was mid-range to low (compared to the others). This job was begun the very next day with a crew of 3 - 5. The work (paint, carpet, insulation, cleaning, deck wash and stain) was completed in 5 days - a very fast timeline!! The workers were polite, professional, cleaned all debris. I highly recommend Antonio and his business for any home repair needs. Blessings to them."