Lennox Service & Repair from A1 Chesney Service Experts Heating & Air Conditioning in Calgary Lennox has more than a hundred years of experience manufacturing some of the finest heating and air conditioning systems available. Your Grandma and Grandpa probably had Lennox equipment in their home—and in some cases the system may even still be there! If you have Lennox equipment maintaining your home comfort, you can rely on A1 Chesney Service Experts Heating & Air Conditioning in Calgary 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 running in top form. And with utility costs that are bottom dollar. Reach out to A1 Chesney Service Experts in Calgary today at 587-315-5271 for a Precision Tune-Up. That’s what we call our routine maintenance service that helps 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, we’re always open for you.