Different, more old-fashioned way of finding interior painting workers, is to ask some of your friends. One of theme were making some renovation at house for sure, maybe he is ready to recommend anyone? Because nice contractor is really precious, some of theme are doing nothing during their work, or sometimes you must to repaint after them. But there are a lot of trustful people out there, you only have to get some information about them. Never choose first person you saw, better research him first. Also, you could give your own advertisement in the local newspaper, maybe someone you know would declare his help? Of course, you may always do exterior painting by yourself, but who has time for it? Less expensive will be to find a worker.
Exterior or Interior painting is not a piece of cake. When you wish to do it on your own, be certain you have any skills and a lot of free time. Next alternative is to find any well workers. Just make certain it is anyone trustful, if so, he will be ready to finish his work within few days, and you will admire the new view of your house. If not, you will loose your money and mood, and possibly you even have to finish after him. So beware.