Welding Services

DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. provides quality welding services in Longmont, Boulder, Loveland and surrounding areas. Continuing to build on a reputation proven over 27 years of honesty, expertise, and reliability, we are locally owned and operated. Our welding shop offers quality metalwork and specialized options to resolve challenges across commercial and residential applications.

Reliable Welding Services

Our fully licensed, insured, highly trained, and experienced professionals are up to any challenge. Contact DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. at 970-469-9446 with complete confidence.
DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. does the job right. Our precision results are based on attention to detail. We can help you develop a plan, complete every stage of your project, and streamline the process for quick turnaround and integrity of results.

Call DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. for professional welding services!

With fast, efficient service, we follow exacting protocols and adhere to strict timetables. Don’t hesitate to get in touch and discuss questions, challenges, and goals. DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. offers a comprehensive range of skilled welding services across Longmont, Boulder, and Loveland Colorado.

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