A to Z Heating and Cooling is making necessary and crucial strides in becoming Northern Colorados most trusted HVAC Contractor. Take a look at why we are different than our competitors, and why you should choose us for your home air needs. Member of the Better Business Bureau, and boast an A- rating thanks to customer satisfaction Licensed, Bonded, and Insured 24 Hour Emergency Service No extra after hour or weekend service fees Family owned and operated Lennox Premier Dealer Member of Angies List with an A+ rating Participant in Atmos Energy Rebate Program Participant in Excel Energy Rebate Program Participant in Select HVAC Rebate Program All Employees are recognized in company uniform Clearly marked A to Z Heating and Cooling vehicles for your safety All employees are NATE certified All employees are drug tested All technicians are factory trained and certified All employees are checked for criminal background We offer 100% Satisfaction Guarantee We offer a Customer Respect Guarantee We offer an Equipment Sizing Guarantee We offer a Property Protection Guarantee We offer a Lifetime Workmanship Guarantee We offer an apples-to-apples Price Matching Guarantee Many customers in northern Colorado choose us for regular maintenance, new installs, and emergency situations. As a matter of fact, we have received an Angies List Super Service Award and are a Premier Lennox Dealer. Its easy to choose us for outstanding service. Welcome to A to Z Heating and Cooling. We offer heating and cooling services to all makes and models, but we offer specialized service and outstanding customer service. Our certified technicians can improve the efficiency of your home system including heating, cooling, air quality, and temperature controls. Please contact us today for an evaluation of your home or for routine maintenance needs. We are available to service you 24/7 at (970) 353-0315. We proudly service homes in the Sterling, Greeley, Longmont areas and locations in between.