Ideally, you want a variety of older and newer projects, and you especially want to check on a very recent project, such as something completed last month. When you do get the references list, don’t take the information for granted. Take a few minutes to check these references. Ask these homeowners about the experience while services were provided and also how well the job has held up over time.
Primers aren't just diluted paint. They're formulated to establish a solid, even base, seal stains and ensure that the topcoats of paint go on smoothly and bond securely to the surface. "Most homeowners use latex primers, but the pros stick to alcohol and alkyd primers because they'll cover almost anything," says John Weeks, of John the Painter in Mobile, Alabama. Primer can affect the appearance of the topcoat. "It's okay to spot-prime the ceilings but not the walls, because primed spots will show," adds Span.
Paint gets more expensive as you go from flat to gloss. The difference is usually around $1 per gallon per sheen upgrade. Flat is the cheapest, then matte flat or eggshell, satin, semigloss then gloss. Paint also gets much more expensive the darker it gets. A white or neutral paint color can be as much as $20 less expensive than a deep base red or blue.
To win work, contractors generally have to bid against other suppliers. To make an accurate bid, they estimate the time and materials required to complete the job. They measure the area to be painted and discuss the type of finish the customer requires. They assess the quality of the surfaces to work out how much remedial work they must carry out before painting. They might have to remove old paint or wall coverings, or repair cracks and other damage. They also calculate the cost of any essential equipment, such as scaffolding for exterior walls.

House Painter