Heating Installation

At D.N.I. Heating, A.C. and Refrigeration, Inc., we always find the best solution based on the customer’s needs. Whether you’re looking into new construction/design or replacement of a commercial or residential heating system, our fully licensed and insured technicians customize every stage of the process, from recommendations to turnaround time. Locally owned and operated, we are committed to providing higher standards of honesty and value in Longmont, CO and surrounding areas. We encourage you to get in touch with us at 303-772-2490 to hear more about our wide range of expertise.

Expert Heating System Installations & Replacements

D.N.I. Heating, A.C. and Refrigeration, Inc. looks forward to working with you. We specialize in simplifying every challenge and delivering a satisfying and sustainable end result. Through higher quality of equipment and workmanship, we achieve unmatched levels of efficiency, safety, control, and comfort.

Trust our team for all your heating install needs!

Let us introduce you to the latest innovations in heating, meet your specifications, and optimize the enjoyment of your indoor environment. When you’re in need of superior answers to the challenge of local weather, D.N.I. Heating, A.C. and Refrigeration, Inc. is the right choice anywhere across Mead, Longmont, Firestone, Frederick, Loveland, Berthoud, Johnstown, Erie, Lafayette & Louisville, CO.

Furnace Replacement in Loveland, CO | Furnace Installation Firestone, CO | Heating System Replacement Louisville, 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!

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!

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!

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.

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.

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.

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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 Installation, Furnace Replacement & Heating System Replacement Longmont, CO, Erie, CO, Frederick, CO, Loveland, CO, Firestone, CO & Mead, CO

Heating System ReplacementFurnace ReplacementFurnace InstallationHeating Installation ∴ Loveland, CO ∴ Louisville, CO ∴ Firestone, CO