Lennox Service & Repair from Service Experts Heating & Air Conditioning in Longmont Lennox has over a century of history producing some of the greatest heating and air conditioning systems available anywhere. Your Grandma and Grandpa probably had Lennox equipment in their home—and in some cases still using that same system! If you have Lennox equipment keeping your home comfortable, you can count on Service Experts Heating & Air Conditioning in Longmont to deliver 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 purring away in top form. And with utility costs that are bottom dollar. Reach out to Service Experts in Longmont today at 303-647-5749 for a Precision Tune-Up. That’s what we call our routine maintenance service to help assure reliable, energy-efficient operation of your Lennox furnace or AC system. Or, if your Lennox heating and cooling equipment should ever need repair, call us anytime, 24/7/365.