As a painting contractor I find that most contractors charge between $20 an hour and $45 an hour plus paint and materials pending overhead here in Pennsylvania i figure $30 an hour is a safe bet. figure a good painter should be able to prep a 12 x 12 to a 12 x 15 room, caulk, apply 1 or 2 coats to the ceiling 2 coats on the walls and 1 coat on all baseboards, trim, doors and crown moulding in an 8 to 9 hour day. This is with minimal or minor spackling repairs like nail holes and nail pops, not cracks and peeling tape. Thats extra paint is usually $30 to $70 a gallon pending quality. A room this size will need 1 gallon for the ceiling 2 for the walls and maybe 1 gallon for the trim, doors ext... the square foot price is $1.50 - $3.00 as far as asking for money up front I never ask. If the home owner buys the paint there is no need for money and if your buying the paint and your an established contractor you have an account with your supplier's. any ways that's my input and guidelines
Second: all the tricks of the trade in regard to "cheating" customers is for hustlers and cheaters and NOT established businesses. At the end of the project the job should come out looking professionally painted as specified in the contract. A selected color that takes multiple coats that was not calculated by the contractor should cost more money. It's not the fault of the painter.
Here is where this affects you as a consumer. You select a painter with a contract that says 2 coats, $500 down. You give the company the deposit and pick your colors a couple of days before the project starts. The painter goes to the store with your colors and figures out they are deep base. He (or she) not only needs to charge you more for the paint, but he also needs to charge you for a dark gray primer coat. Ninety nine percent of the time that primer coat is going to be really, really expensive since you already gave a deposit.
Freshly painted walls often look blotchy. The color is uniform, but the sheen isn’t consistent. This usually occurs over the holes and cracks you patched with a filler or drywall compound. The porous fillers absorb the paint, dulling the surface (a problem called “flashing”). When light hits these dull spots, they stick out like a sore thumb. The smooth patch also stands out in contrast to the slightly bumpy texture of the rest of the wall. A quick coat of primer is all it takes to eliminate ﬂashing and texture differences.
Congratulations! You've made the smart decision to improve your home's appearance and value with a professional paint job. Now comes the daunting challenge of finding a paint contractor. Not to worry! These 10 secrets will help you find a GREAT paint contractor who'll deliver a top-quality job at an excellent price and leave you with a satisfying home improvement experience.