Your questions answered: HVAC FAQs. J.L. Brady Company LLC in Moline can answer all your HVAC-related questions. Before you get on the phone, check to see if we already responded to your question online. If you don’t see your question on the list or want more information on a particular topic, give us a call at 309-517-7511. Our staff can offer you the information you’re looking for in no time.