Remember: You want to get the highest quality paint your budget will allow to ensure its lasting beauty. You'll also need painting supplies like primer, brushes, rollers and painter's tape. A professional will have these items on-hand. According to statistics, paint and other supplies account for about 15 percent of a professional painter's total cost; labor will factor into 85 percent of their charges.
You can tell a lot about a painting contractor by his warranty. Well-known contractors with established reputations are respected by paint suppliers who, in turn, pass on extended or even lifetime warranties on their paints. This is because they know the product will be applied the right way. For any number of reasons, less experienced contractors may not have valuable relationships with suppliers.
Inexperienced contractors using standard business forms purchased at office supply stores could suggest they haven’t invested much in their business, and may not be properly licensed. Also, they may not be paying income taxes, a risk you don’t want to take when hiring a painting contractor. There’s a reason professionalism is important, even when it comes to painters.

If you paint over dirty, oily surfaces, the paint will easily chip or peel off. So before painting, clean grimy areas with a deglosser or heavy-duty cleaner intended for prepaint cleaning. They work well to clean painted, varnished or enameled surfaces to improve the adhesion of the new paint. They’re ideal for cleaning greasy or oily areas like kitchen and bathroom walls and removing hand marks around light switches and doorknobs. 
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