Established in 1997, D.N.I. Heating, A.C. and Refrigeration, Inc. was founded on commercial services. Locally owned and operated, we provide business owners in Longmont, CO and surrounding areas with a dependable source for a full range of commercial HVAC options. From new construction design/installation and replacement to repair and maintenance, we optimize the safety, comfort, health, productivity, and efficiency of your facility. Our fully licensed and insured team of professionals are qualified and up-to-date with all types of commercial equipment, including boilers and packaged units.

Trust in D.N.I. Heating, A.C. and Refrigeration, Inc. for all your commercial heating & cooling services!

We invite you to call us at 303-772-2490 for prompt action and sustainable results. Our extensive resources, including an in-house sheet metal fabrication shop, and wide range of expertise ensures customized strategies and swift turnaround. D.N.I. Heating, A.C. and Refrigeration, Inc. minimizes disruption of your everyday operations through organized project management and strives to streamline your operations to save both time and money. Let us introduce you to modern innovations, resolve concerns, and put control at your fingertips. The team from D.N.I. Heating, A.C. and Refrigeration, Inc. is available to you 24/7. We maximize comfort across Mead, Longmont, Firestone, Frederick, Loveland, Berthoud, Johnstown, Erie, Lafayette & Louisville, CO.