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.
In most cases, you'll be able to remain in your home during a painting project. However, if you are painting multiple rooms or your entire home it may make sense to stay elsewhere for the duration of the job. If your project involves lead abatement or anyone in your family is sensitive to dust or fumes, you should consider leaving the premises until the job is complete.
Over the past year I have had several jobs given to 2 Angie's list recommendations and 1 not from a recommendation. They all have one thing in common, lack of sufficient and correct preparation to save time, labor, and the fact that they put a person in charge that was a cut corners type of worker. The two from Angie's list sent worker/s back to try touch up problems, but once the job is not prepared correctly in the first place any extra work is like putting a band-aid on a dirty wound.
Painting interior walls is a task better accomplished with foam rollers, because they are easy to use and can evenly cover large surface areas quickly. Foam rollers and brushes should never be overloaded with paint, as it can create drips, uneven coverage and can take longer to dry. It’s easy to get frustrated when the paint is fresh and does not look like a photo from the paint catalog, but remember: that’s something that usually happens after the second coat dries.