Interior paint itself costs anywhere from $12-$50 or more a gallon, depending on the quality. Painting a 12x12-foot room, both walls and ceiling, can require $25-$100 worth of paint, plus $10-$50 for primer, brushes, rollers, drop clothes and other supplies. For a 1,500-square-foot home, supplies run $200-$300 for average paint, and $400-$600 for higher quality.
A gallon of paint costs $15 to $40 and covers about 350 square feet with one coat. Designer varieties can run over $100 per gallon. Your contractor pays 50 percent less than what it runs in a home improvement store. You’ll also need to spend another $20 to $100 on supplies like brushes, rollers, masking paper and plastic. A professional will have these items on-hand.
Some service pros are employees, franchisees, dealers or independent contractors ("Corporate SP's") of larger national or "Corporate Accounts". When this is the case, you may be matched with the Corporate Account or with one of their Corporate service professionals. The above screening process is not applicable to Corporate Accounts, as HomeAdvisor does not screen Corporate Accounts or Corporate service professionals.
Although painting a room sounds easy, it can be difficult for inexperienced individuals to coat a room evenly. Too much paint and bubbles start to form, while using too little paint can leave sections pale and off-color. Hiring a professional interior painter near you can eliminate these problems. Plus, a pro can offer color and paint type suggestions, ensure that paint doesn't get on your furniture and floor, and may be able to offer specialty finishes and patterns.
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."