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.
Regarding cost - Keep in mind some older homes may cost more due to the EPA RRP lead paint rule that was placed in effect. I'm not saying price will be doubled, but it will add some more labor and material cost. After all, the EPA is fining non compliant contractors nearly $38,000 per non compliant violation. I see many posts about illegal contractors. We do pay insurances, we have business costs, I price jobs to where I am comfortable with paying labor, expenses for my business, and not making $250k per year as some do. I have gone into homes where someone thought they were getting a great deal and ended up calling me to fix mistakes or sloppy jobs. Paint will vary in cost, yes.
I have the time since I work from home and work has been slow, so I volunteered to paint our kitchen..10 X 16. My hubby changed his mind midway through the painting, so I had to change color. Took 3 days. I did most of the painting and he painted and did some touch up work. We spent $126 in paint and supplies which included primer, ceiling paint, primer, three colors, semi gloss for trim and chair rail, assorted brushes, roller covers, and drop cloths. After all was said and done, it looks really good.
The price to paint an interior versus an exterior depends on a few factors. For painting an exterior, you will pay about $2,600. This is because you have to account for the siding, making sure the weather doesn't affect the job and dealing with weather conditions. On the other hand, the price to paint a home interior is around $1,700 -- less to worry about other than keeping the flooring and furniture paint-free. If you want to do both the interior and exterior, talk to the painters about any deals or their opinion on timeline and how it affects your budget.
"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."