Business Details
50 Years
experience
Emergency
services
Trusted HVAC Services in Denver Since 1976
Controlling Systems has been a trusted name in heating, cooling, and indoor air quality solutions since 1976. As an independent, locally owned business, we serve the Denver community with top-tier HVAC solutions tailored to specific needs. Our team is NATE-certified, factory-trained, ICC-certified, and EPA-licensed, ensuring installations, repairs, and maintenance meet strict professional standards. We service and install all major HVAC brands, offering energy-efficient solutions that improve quality of life. Our commitment extends beyond equipment to building relationships based on trust, reliability, and transparency. We provide honest recommendations, fair pricing, and financing options for unexpected HVAC issues.Special discounts for military personnel and senior citizens reflect our appreciation for their service. Our community partnerships, like the Food Bank of the Rockies, demonstrate our dedication to local well-being. We stay at the forefront of industry advancements with smart thermostats, high-efficiency systems, and air purification technology. With a 100% Satisfaction Guarantee and industry-leading warranties, we ensure comfort and investment protection. For nearly five decades, we have built a reputation for exceptional service, technical expertise, and customer-first values.
Services
Furnace Repair
Heat Pump Installation
AC Maintenance
Electrical Services
Solar Installation
Details
- Year established: 1976
Highlights and features
- We are EPA & NATE certified for technical excellence.
- 24/7 emergency services for urgent HVAC needs.
- 100% satisfaction guarantee on all workmanship.
- Locally owned with decades of community expertise.
- Financing options available for major system upgrades.
Associations and certifications
- EPA
- NATE
What people say
Exceptional service
Punctual technicians
Highly recommend
No gimmicks
Great communication
Services
Furnace Repair
Our furnace repair service restores heating efficiency quickly. Expert technicians diagnose and fix issues with all major brands, ensuring reliable warmth during Colorado winters. We prioritize rapid response and long-term solutions.
Heat Pump Installation
Professional heat pump installation maximizes year-round comfort. We recommend ENERGY STAR models for optimal efficiency, with precise sizing and placement tailored to your home's specific requirements and climate demands.
AC Maintenance
Preventive AC maintenance extends system lifespan and prevents breakdowns. Our technicians clean coils, check refrigerant levels, and optimize performance to maintain efficient cooling during Denver's hottest months.
Electrical Services
From panel upgrades to EV charger installation, our licensed electricians handle residential and commercial needs. We ensure safe, code-compliant work with minimal disruption to your daily operations.
Solar Installation
Our solar installation service reduces energy costs with customized photovoltaic systems. We handle permits, design, and installation, ensuring maximum sunlight exposure and integration with existing electrical infrastructure.
Questions
What HVAC services do you offer?
We provide furnace repair, heat pump installation, AC maintenance, indoor air quality solutions, and smart thermostat services for residential and commercial clients.
Are you available for emergencies?
Yes, we offer 24/7 emergency HVAC services for urgent heating and cooling issues across the Denver metro area.
Do you service all HVAC brands?
Our technicians are trained to service and repair all major HVAC brands, regardless of where they were originally purchased.
What financing options are available?
We offer flexible financing plans for major system replacements, including HVAC, electrical upgrades, and solar installations with approved credit.
Are your technicians certified?
All technicians are EPA-certified, NATE-certified, and factory-trained to ensure proper installation and repair of modern HVAC systems.
Do you offer warranties?
We provide a 100% satisfaction guarantee with industry-leading labor warranties and manufacturer warranties on all installed equipment.
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Reviews (6)
Pat G.
Jun 16, 2022
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The Controlling Systems crew that installed my new, central Mitsubishi ducted heat pump system were absolutely great! Professional, hard-working, knowledgeable, clearly a cohesive crew that actually had fun while they worked! Everything was done neatly, and left cleaned up. I couldn't have been more pleased. I recommend them highly! Service: HVAC duct & vent installation
Daniel Kubein
Jun 14, 2022
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Always a great experience with this company! We've used them for our service calls for the past year. It was time to replace the old swamp cooler in our home and they came out to review all options and pricing with us. When we decided to replace our system we got competitive pricing and an install window of two weeks. They always notify when they are on their way and have never once been late. They stayed from 10am to 8pm replacing our unit.
We had a fantastic team at our home working diligently to get our system up and running. They were beyond communicative, professional, and cleaned up after themselves ten fold. Truly, I am so impressed with their team! Thank you Gemini, Rudy, James, Easton, Roman, and Mike for assisting us! We will be using them for all of our future needs and love supporting this great company and team.
We had a fantastic team at our home working diligently to get our system up and running. They were beyond communicative, professional, and cleaned up after themselves ten fold. Truly, I am so impressed with their team! Thank you Gemini, Rudy, James, Easton, Roman, and Mike for assisting us! We will be using them for all of our future needs and love supporting this great company and team.
Toni Tushinski
May 22, 2022
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We had a new evaporative cooler installed on our roof and the 2 gentleman that did the work were excellent! Gemini and Eastman kept us updated every step of the way. They were very kind, courteous, and respectful. Not only did they do a great job of installing the cooler, but they explained in detail how to run it. They also left no mess behind. They cleaned up everything, they even vacuumed up everything from the sawing and hammering. I would recommend this company with 5+ stars.
Kathy Kosednar
May 18, 2022
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The tech (Gustavo) arrived on time, was friendly, courteous and knowledgeable. Since we're relatively new to ductless heating and A/C, we just wanted a tech to check the system to make sure it is clean and working properly. We really like the ductless heating and A/C and are very happy with the great service we receive from Controlling Systems.
Nitro Wolf
May 17, 2022
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Mike and Gemini of Control Systems arrived on-time and were very helpful walking us through each step of the installation process. They did a great job of making sure the installation looked as good as possible and kept the working area clean. If you are considering a Ductless A/C or Heating, Control Systems has the best installers and service technicians we have worked with. Highly recommended as a Diamond level Mitsubishi partner in Denver.
Cindy G.
May 08, 2022
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I cannot recommend Controlling Systems, unfortunately. I got a new furnace and AC unit installed in April 2021, and it wasn't a smooth process; the inspections failed at least twice, and after a month the exterior seal completely melted off. I altered them to a weird sound I started to hear, and they brushed it off. I finally got a different company to come take a look and we found not one but TWO pieces of metal scrap inside of the fan!
A small one I could maybe understand, but not the bigger one which measures 3x8 inches! I will not be using them for any future projects. They also mistakingly sent me another customer's invoice which detailed: "Condensation line to unit was not hooked up properly this is why the unit was leaking into the attic there is no visible damage done to the drywall with a little water did come out should dry up by the end of the day."
A small one I could maybe understand, but not the bigger one which measures 3x8 inches! I will not be using them for any future projects. They also mistakingly sent me another customer's invoice which detailed: "Condensation line to unit was not hooked up properly this is why the unit was leaking into the attic there is no visible damage done to the drywall with a little water did come out should dry up by the end of the day."
