Boulder, CO Mechanical Services

Mechanical Services Boulder, CO

For all your Boulder HVAC Refrigeration & Plumbing services, come see the experts at DNI Heating, Cooling, Refrigeration, & Plumbing, Inc.. As a family-owned business, we provide our customers with dependable and affordable services. After 22 years in business, we know how much our Northern Colorado customers depend on us. Our customers are just another part of the family, so we treat them as such. DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. is one of the leading appliance repair companies in Boulder, with quality heating, air conditioning, HVAC, appliance, furnace, and freezer repair services.

Offering a comprehensive selection of Boulder HVAC Refrigeration & Plumbing services in:


Our team of professionals will ensure your repairs get done, while saving you time and money. We are experienced in repairing many makes and models of appliances, so we are confident in our ability to fix whatever you throw our way. When you want to upgrade your appliances for something newer or more energy efficient, we can help you explore your options and see what would work best for you and your space. Our customers have stated that they will save upwards of 15% on their energy bills by switching to appliances that are more energy efficient.

Boulder Plumbing

DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. is your trusted source for comprehensive plumbing solutions in Boulder. Our experienced professionals are dedicated to providing top-quality plumbing services for residential and commercial properties. Whether you need a new toilet installation or require repairs for an existing one, we have you covered. Our team will ensure that you have a reliable and energy-efficient water heating system that meets your needs and provides you with consistent hot water.

Boulder Refrigeration

For all your commercial and residential needs in Boulder Refrigeration, trust DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. With over 25 years of experience, we have the expertise and resources to handle a wide range of refrigeration systems. We specialize in the installation, repair, and service of commercial chillers, walk-in boxes, walk-in freezers, ice machines, and more. Our team helps you implement environmentally friendly commercial chillers that draw less energy while still achieving effective and reliable air conditioning. We are a Bryant Factory Authorized Dealer, recognized in the Circle of Champions, and our techs are factory trained and updated. From new installation to upgrades, upkeep, and repairs, we ensure your refrigeration systems run efficiently and reliably.

Call our team for your Boulder HVAC Refrigeration & Plumbing service needs!

DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. in Boulder provides heating, air conditioning, HVAC, appliance, boulder furnaces, and freezer repairs to many Northern Colorado communities. Reach out today to learn about all the services we offer, and how we can help you live a greener lifestyle or complete simple repairs.


Not located in Boulder? We also provide service in Loveland, Longmont, and surrounding areas.

What our clients are saying

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.

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!

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.

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!

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Save today with our special offers

At DNI Heating, Cooling, Refrigeration, & Plumbing, 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


Local Residential Service Call


This coupon cannot be combined with any other offers. Coupons must be mentioned when booking service calls.

Expiration: 9/30/24