Heating Service

Extreme winter weather in Longmont, CO and surrounding areas requires a heating system working at its best. Even minor concerns with dust buildup or worn parts results in a decrease in comfort, needless energy consumption, higher running costs, and safety risks. Without proper cleaning and tuning, there’s a much higher chance of malfunction and the heater probably won’t last as long. You may notice elevated sound levels, an excess of airborne contaminants, and even unpleasant odors. Fortunately, there’s a simple, convenient, and cost-saving solution. Call on D.N.I. Heating, A.C. and Refrigeration, Inc. at 303-772-2490 for professional maintenance.

Reliable Heating System Maintenance

Our fully licensed and insured technicians are experienced and trained in all brands and models of residential and commercial heating systems. From boilers, heat pumps, and furnaces to rooftop units, we answer with advanced technology, proven procedures, and swift turnaround.

When you need heating service in Longmont, CO and surrounding areas, trust in D.N.I. Heating, A.C. and Refrigeration, Inc.!

Founded in 1997, we’ve seen that the majority of repairs are due to a lack of proactive services and could easily be prevented. Let us optimize the performance of your heating equipment, ensure proper temperature control, and trim costs with HVAC upkeep anywhere across Mead, Longmont, Firestone, Frederick, Loveland, Berthoud, Johnstown, Erie, Lafayette & Louisville, CO.

Heating Service in Lafayette, CO | Heating Maintenance Longmont, CO | Heating System Service Firestone, CO

What our clients are saying

D. Johnson

This crew has saved me on multiple occasions. From heating to ac service they have done it all for me. Always great customer service and a quick response time! Thanks for the continued great service DNI!

R. Barcklow

DNI and Chris specifically were amazing. My furnace went out with the first Colorado storm and they were able to come out the next day and provided me with honest, transparent service so I could make the best decision for my budget. There was never any pressure from Chris between buying a new furnace and fixing my old one. I felt like they were patient and willing to work with me and my needs. I would highly recommend DNI for heating services.

M. Southworth

DNI Heating got out to my house, assessed the problem and installed a new furnace for us within hours on a Friday afternoon. We did not have to worry about the 0 degree temperatures coming in that weekend. The service was great from the minute I called to helping us register our furnace.

K. Kitten

Trustworthy, fair and will advocate for their clients. Whether it is maintenance or replacement DNI is wonderful. As a small business, the options are limited and expensive for replacing a unit that is original to the building. Chris L. worked exceptionally hard to ensure that our needs were met, ultimately finding the most cost effective solution.

R. Larson

Extremely happy with my decision to use DNI. Installed cash price of my new furnace & AC unit was about 23% lower than the competition. Chris was very knowledgeable, conscientious, and top notch! The whole crew was excellent!

J. Jacobs

The service personnel were top-notch – friendly, professional, and dealt with some unexpected issues without missing a beat! Plus, they were dog lovers and made friends with my best buddy Highly recommended!

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Save today with our special offers

At D.N.I. Heating, A.C. and Refrigeration, Inc. our goal is to make your residential or commercial property more comfortable, and to help you save money. We are happy to provide you with the following special offers!

Special Offers

$300 Off

New Residential Evolution Furnace -or- A/C Installation


This coupon cannot be combined with any other offers.

Furnace Maintenance, Heating Service & Heating Maintenance Lafayette, CO, Erie, CO, Firestone, CO, Loveland, CO, Louisville, CO & Mead, CO

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