Lennox Service & Repair from Bob Brown Service Experts Heating & Air in Phoenix Lennox has over a century of history producing some of the best heating and air conditioning systems available anywhere. Your Grandma and Grandpa likely had Lennox equipment in their home—and in some cases they may still have the same system! If you have Lennox equipment to meet your heating and cooling needs, you can trust Bob Brown Service Experts Heating & Air in Phoenix to offer factory-authorized professional service and repair. We are a licensed, highly qualified, nationally certified heating and air conditioning contractor, with the skills and knowledge to keep your Lennox HVAC equipment operating in top form. And with utility costs that meet your budget. Contact Bob Brown Service Experts in Phoenix today at 623-243-4517 for a Precision Tune-Up. That’s what we call our routine maintenance service available to assure reliable, energy-efficient operation of your Lennox furnace or AC system. Or, if your Lennox heating and cooling equipment should ever need repair, give us a call anytime, 24/7/365.