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DNI Heating, AC, Refrigeration, Plumbing & Electrical

HVAC Companies in Boulder, Colorado
Ranked #5 in Boulder | Grade B+
4.80 (92 reviews)

DNI Heating, AC, Refrigeration, Plumbing & Electrical

DNI Heating, AC, Refrigeration, Plumbing & Electrical provides multi-trade service from its Boulder, Colorado location, coordinating HVAC, refrigeration, plumbing, and electrical work. Customers often note timely arrivals, clear communication, and clean work practices.

DNI Heating, AC, Refrigeration, Plumbing & Electrical business photo 1 - HVAC in Boulder
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DNI Heating, AC, Refrigeration, Plumbing & Electrical business photo 3 - HVAC in Boulder
DNI Heating, AC, Refrigeration, Plumbing & Electrical business photo 4 - HVAC in Boulder
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Why Homeowners Choose This Business

Local shop with a broad service mix, helpful scheduling, and technicians who explain findings before proceeding. Many customers note timely arrivals and careful cleanup after the job Local experience that helps homeowners across Boulder, Colorado compare a more region-aware provider.

Service Area

Headquartered on Broadway in Boulder, Colorado and serving the city and surrounding communities across Boulder County and the nearby Front Range.

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Listing details

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  • Service information
  • Customer review signals
  • Photo gallery
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  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Plumbing Services
  Renovation Services
  AC Repair
  Furnace Repair
  Hvac Maintenance
  Heat Pump Service
  Refrigeration Service
  Electrical Troubleshooting
  Plumbing Repairs
  Thermostat Replacement
  Ductwork Repair
  Indoor Air Quality
  Commercial HVAC
  Water heater service

Heating and air conditioning repair and replacement; seasonal maintenance; indoor comfort troubleshooting; refrigeration service; general plumbing repairs; electrical diagnostics and repairs.

Reviews

Customer Reviews

Renee Hanna
Nick and Antonio are incredible. It was 100° and they worked all day in that stifling heat. They were polite, cordial and professional. They let me know when they were coming in and out of the apartment and kept their work area clean not on…
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Nick and Antonio are incredible. It was 100° and they worked all day in that stifling heat. They were polite, cordial and professional. They let me know when they were coming in and out of the apartment and kept their work area clean not only during the day but at the end of a long hot day as well. Both Nick and Antonio were a pleasure. I would not hesitate to recommend DNI to anyone who needed help with their AC unit.
Mike Sipiora
Thomas Carter was a fantastic technician for us. Answered all of our questions, was very quick in diagnosing the problem, and most important, fixed our AC and got it working that day. Thank you so much. Highly recommend both Thomas and DNI.
Val Yates
I had terrific service from DNI on an electrical issue related to my AC. The scheduler understood the safety aspect and sent the electrician promptly. Derick was on time, friendly, polite, informative, thorough, and fixed the problem in one…
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I had terrific service from DNI on an electrical issue related to my AC. The scheduler understood the safety aspect and sent the electrician promptly. Derick was on time, friendly, polite, informative, thorough, and fixed the problem in one appointment. He answered my questions with patience. I value hiring a company that is locally owned and with a solid history of service. I will definitely call them next time I need help.
Lisa Hewett Fine Art
In the AC/HVAC service world, same day visits are virtually unheard of. I had reconciled myself to the idea of having several more sweaty days and nights (it’s a Friday) when I reached out today. Imagine my astonishment when DNI said they c…
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In the AC/HVAC service world, same day visits are virtually unheard of. I had reconciled myself to the idea of having several more sweaty days and nights (it’s a Friday) when I reached out today. Imagine my astonishment when DNI said they could take care of me same-day!

From the moment Thomas and Jack arrived, they were the perfect blend of experts in their field and courteous gentlemen (they had their own booties on to protect my floors—more on that later). They introduced themselves and made me feel comfortable almost immediately. That’s really important to me, since it can be unnerving as a female to have strange repair men come in my home. It was readily apparent they were genuinely kind people.

Within a few minutes of me describing the issue, they had already diagnosed where they needed to work, saving time and money.

Unlike many service folk who wear booties, Jack and Thomas took them on and off each time they had to go in or outside. Also, they were very thorough checking to make sure the AC unit was actually fixed, and didn’t just “go through the motions”. Truly, in their interpersonal skills and professional knowledge, they exceeded my expectations and resolved the issues quickly and competently. I highly recommend DNI. Be sure to ask for Thomas and Jack!
Julian Michael
JD is awesome! He cleaned up nicer than it was before he got here and he gave lots of good advice, and was very pleasant to work with. I even had to stop him from doing our dirty dishes lol. They were able to come within 2 hrs of our HOA ma…
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JD is awesome! He cleaned up nicer than it was before he got here and he gave lots of good advice, and was very pleasant to work with. I even had to stop him from doing our dirty dishes lol. They were able to come within 2 hrs of our HOA maintenance guy calling them and got the drain cleared in under an hour.

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Frequently Asked Questions

The company services heating and cooling systems, including repairs, maintenance, and replacement options when needed. They also support related trades such as refrigeration, plumbing, and electrical to address connected issues in one visit.

Reviews suggest same-day visits are often accommodated, especially for urgent AC issues. Availability can vary by season and workload, so calling early improves your chances.

Yes, the team handles electrical diagnostics tied to HVAC and can address wiring or component issues that affect performance. This helps resolve comfort and safety concerns without coordinating multiple contractors.

Routine maintenance is available to keep systems running efficiently and reduce breakdowns. Contact the office for current options and recommended schedules for your equipment.

Service is centered in Boulder, Colorado with coverage across nearby communities in Boulder County and the surrounding Front Range. Call with your address to confirm availability and scheduling times.
 Verified Listing

Opening Hours

  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

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Business Details

Business Rating
4.80 (92 reviews) Pro Listing
Address
3990 Broadway Ste 110, Boulder, CO 80314
Business Type
HVAC Contractor
Website
https://www.dniheating.com/
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