If you are considering joining a leads group like BNI, take a minute to step back and consider starting your own referral group for painters. As a painting contractor the greatest source for leads will be other contractors, people who do complementary work. The pool of professionals could be roofing contractors, gutter contractors, landscapers, etc. People who do something else for your potential clients except painting. If you are willing to take some time and implement my referral system, you will create your own referral system and explode your leads funnel.