Solar Professionals of Illinois is a solar energy sales company based in Oak Forest Illinois, serving the northeast part of the state. Absolutely free of cost, or compromises, call us or contact us to have your home evaluated for solar power. No out-of-pocket cost and start saving from the first day your solar panels are installed. You will change from an expense of an electric bill to an investment in solar panels because they increase the value of your home. We are a local company so we always answer your concerns in person. When you call us, we always answer the phone, and with a REAL PERSON.