A to Z Heating and Cooling Logo

  • Image for 1700 dollar rebate program
  • image noting our award for Super Service Award on Angie's List for 2013
  • image to explain that we offer service financing options
  • image noting that we are a Dave Lennox Premier Dealer
  • image noting that our technicians are NATE Certified
  • an image noting that we service all makes and models

We are your Colorado air comfort experts!

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.