Sorry it is difficult to trust almost anyone in the trades. It is easier to do the work myself and not deal with strangers in and around my house. When I have to hire someone I tell them up front that I'll be checking every detail, pay extra to purchase the materials myself, and if they don't want the job - well good! I always fine someone who will work with me as I pay a bonus for that.
When you go to the home improvement store, find out how much 12 gallons of the paint you want would cost, and that will help you determine your cost. Maybe it's a low-quality paint that costs $30, in which case you're looking at about $360 for paint. If you choose high-quality paint that costs around $70, your total paint cost could be closer to $840. Professionals also recommend that you add an extra 10 or 20 percent to your total square footage, depending on the type of siding you have. Some textures require extra paint because they're rough. This is especially true with wood and stucco siding.
When the homeowner is at the point of hiring a painter, they generally will have colors selected or at the very least a color in mind. I always ask for the colors before I bid a job. Dark colors, high sheen colors and specialty finishes require more labor, this drives price. If its not a color change or I'm going over a similar color I give the pricing option of one or two coats. The best advise I can give based on 25 years in the business is to put it all in writing,colors, brands of paint preferred, when the work can be done, who moves furniture and how payment will be handled. I never get up front money. BTW you most definitely get what you pay for with paint. Higher quality products results in and better looking job. Don't be a cheapskate when it comes to paint or the painting contractor. House Painting Home Painters Highlands Ranch Colorado Click Here