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.
Painting is one of the quickest and easiest ways to give your home's interior a facelift with dramatic results. Fortunately, it doesn't have to be that difficult. Home improvement stores offer samples that you can take home. With these samples, you can try a few colors in large swaths on your wall to see the how the paint interacts with the room's natural light. Compare it against design elements like pillows or furniture to see whether it will work with your overall décor.
Basic labor to paint home with favorable site conditions. Prep up to 3 hr per 100 SF - clean, scrape, sand and patch up to 4 defects per 100 SF. Caulk gaps and spot prime. Roll / brush 2 coats of paint over lightly textured ceiling/walls. Paint up to 2 doors and door trim per room. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup. 129 square feet $97.99 $132.56
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 .
Specialty painting, like murals and trompe l’oeil, costs $40 to $50 per hour. Paint might range between $75 to $90. The professional’s skill and experience are also determining factors. While a freelance artist might charge $25 to $30 an hour, a very skilled professional might charge $80 or more. Some might also charge $60 or more for a consultation.
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.
Entire interior house painting job (excluding ceilings). 3 Bedroom / 2 Bath, Kitchen, Dining Room, Family Room, Living Room and Utility Room. Nothing really out of the ordinary, single level, no unusual architecture. I got estimates from professional painting companies, both small and large and individual "painters for hire". What surprised me was the huge range of estimates. $2,800 on the low end to $10,500!! on the high end. Finally went with a small family company at $4,500, (the lower bids seemed a little disorganized and unprofessional). The company I went with may not have been the lowest bid, but they seemed to know their stuff, spending over two hours doing color matching and comparisons just for the estimate. I couldn't be happier with the result, all their suggestion's were spot on, the house looks amazing!
"Rafael was very professional, detail-oriented, pleasant to communicate with (responds promptly, returns calls, confirms appointments) and always showed up on time. He painted my daughter's room beautifully and for a reasonable price (offered pricing with and without paint). His work was precise and without mess. I will definitely hire him again for more painting projects."