Ultimate Heating, Cooling, Plumbing & Electric
HVAC contractor in Denver, CO.
In Ultimate Heating, Cooling, Plumbing & Electric's own words
For ultimate comfort and peace of mind in Denver, trust Ultimate Heating, Cooling, Plumbing & Electric. Since 2006, we've been dedicated to providing top-quality service for all your home comfort needs. As a family-owned business with experienced, certified technicians, we expertly handle everything from HVAC and plumbing to electrical installations. Specializing in efficient solutions and quality workmanship, we ensure customer satisfaction with every project. Experience the difference with a Carrier Factory Authorized Dealer committed to excellence.
- Trade
- HVAC contractor
- Business address
- 4321 Broadway Unit 3, Denver, CO 80216
- Telephone
- (720) 306-9245
- Website
- ultimateheatingandcooling.com
- Hours
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- MondayOpen 24 Hours
- TuesdayOpen 24 Hours
- WednesdayOpen 24 Hours
- ThursdayOpen 24 Hours
- FridayOpen 24 Hours
- SaturdayOpen 24 Hours
- SundayOpen 24 Hours
From the business's Google listing, checked Oct 2026
- Register
- CO register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.
Google Reviews
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I don’t often feel compelled to write reviews, but my experience with this company absolutely deserved one. After my air conditioner stopped working, I initially had another HVAC company come out. They diagnosed the problem as a faulty thermostat and recommended replacing it. Although I had no reason to believe that diagnosis was incorrect, something about the experience didn’t sit right with me. I felt rushed and sold to as opposed to helped. So I decided to keep my appointment with this company for a second opinion. I’m incredibly glad I did. Kelly was thorough, methodical, and professional from the moment he arrived. Rather than jumping to conclusions, he carefully worked through the system, tested the components, and identified the actual problem—a failing condensate pump that was intermittently triggering the safety switch. He took the time to explain exactly what was happening, showed me the issue, and answered all of my questions without ever making me feel rushed. The repair was completed professionally, and I left feeling confident that the problem had truly been diagnosed correctly. I also want to recognize Lisa and Chrissy in the office. Both were exceptionally professional, courteous, and responsive throughout the scheduling process. They provided outstanding customer service and made the entire experience easy from my very first phone call. From start to finish, this company demonstrated the kind of ethical professionalism, technical expertise, and customer care that is becoming harder to find. I was on the fence about keeping my appointment after the first company’s diagnosis, but I’m so glad I did. It saved me from replacing the wrong part, and I now have confidence that the underlying issue has actually been resolved. Best of all, my air conditioner has been running perfectly since the repair. Kelly, Lisa, and Chrissy all represented the company exceptionally well. Based on this experience, I won’t hesitate to call them again for future HVAC needs. Highly recommended.
Michael E.
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I would not recommend this company if you value transparency, responsibility, or your landscaping. We hired ULTIMATE Heating | Cooling | Plumbing | Electric to fix a sewage issue last winter. While they did complete the sewage repair, they damaged our irrigation system—including the pipes and all corresponding valves—in the process (~6000$ job). Because it was winter, we couldn’t test the irrigation at the time. Before leaving, they told us to call them in the summer if we had any issues when starting it up. When summer came and the irrigation system wouldn’t start, we called them—only to be told that their contract says they’re not responsible for any damage to irrigation systems. Now we’re stuck with a $1,200 repair bill and a lawn that’s suffering because it hasn’t been watered properly. This experience has been incredibly frustrating. We trusted their word, but were met with fine print (to be more exact: "landscaping is homeowner responsibility" which apparently means they can not be held responsible for anything other then what was visible) and zero accountability. 2026 Update: One of the exterior irrigation pipes has cracked. After consulting with irrigation specialists, we were informed that the pipes installed during the 2025 repairs were designed for indoor use rather than outdoor applications. As a result, the exposed conditions caused the pipe to fail in less than two years. The irrigation contractor will repair the damaged pipe; however, it is likely that other pipes replaced during the 2025 repairs will experience similar failures over time due to the use of the same unsuitable materials.
Andreea R.
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Connor was easy to work with and got right back to me on a Friday. James came right out and was able to get my hot water working. Thank you.
Rich T.
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Working with Ultimate was awesome in every aspect from communication to installation to the friendliness of the guys, and the help from the office, and the follow up service. It was a great experience and I most definitely recommend them! And my new energy efficient AC unit works great! Thank you Ultimate.
Carrie B.
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Kelly was extremely knowledgeable and diagnosed our issue right away. He fixed it and we had a cool house again. On a holiday. We are very thankful for Ultimate’s professionalism and will definitely use them again.
Whitney K.
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I had a whole army of experienced technicians installing my heat pump led by Sam. Also loved my consultant Kyle.
Linda E.
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Ross was competent, friendly and prompt. He made good recommendations and after study of the options, we proceeded. I recommend Ultimate and highly recommend Ross.
Steve C.
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On time service and professional crew. Went over everything with me. Kyle was Very detailed, polite and professional. Explained the steps of maintenance of my furnace and simple cleaning. Thank you Kyle.
Jessica P.
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The entire installation crew was excellent. They worked diligently and effectively, maintained a clean working space during and after installation. Kyle and Junior are effective communicators and keep me in the loop as installation progressed. I am very pleased with my heat pump and new furnace. I would highly recommend Ultimate.
Peggy L.
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extremely professional knowledgeable punctual/available
muhammad A.
About Ultimate Heating, Cooling, Plumbing & Electric
Heat pump and HVAC work in Denver
Ultimate Heating, Cooling, Plumbing & Electric says it has provided heat pump service since 1999. The company handles HVAC work alongside plumbing and electrical installations, with air conditioning repair, furnace repair, heat pumps, mini-splits, boiler maintenance, and commercial HVAC repair and installation among its named work.
Ultimate Heating, Cooling, Plumbing & Electric is a Carrier Factory Authorized Dealer and says it installs and services efficient HVAC systems. It also names repair and maintenance for most major brands, including Lennox, Rheem, Bryant, Goodman, Carrier, Trane, and Ruud. Residential boiler work is part of its radiant-heating offering, and the company says it services all brands of residential boilers.
Denver heating and cooling conditions
Per the American Community Survey, utility gas heats 61% of Denver housing units in 2024. NOAA normals for 1991-2020 put Denver's average temperature at 51.6 degrees F, with an average high of 65.7 degrees F and an average low of 37.6 degrees F.
Reviewers discuss technician diagnosis, response times, system installation, maintenance explanations, and communication, while some comments raise concerns about follow-through after work. The company is open 24 hours a day, seven days a week, and says it offers 24/7 emergency service.
The company says its technicians are NATE-certified.
Carrier systems, tune-ups, and repair calls
The business names A/C tune-ups and safety inspections, A/C repair, hydronic-system maintenance, and ductless mini-split installation. It also offers financing. Its stated service area is the Greater Denver Metro Area.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from the US Census and NOAA.
More HVAC contractors in Denver
About Denver
| Population | 740,613 (2025) |
|---|---|
| County | Denver County |
| Average yearly snowfall | 41.3 inches |
| Heating degree days | 5,678 |
| Most common heating fuel | Utility gas |
Sources: U.S. Census Bureau. NOAA U.S. Climate Normals 1991-2020.