Dec 2025
Controlling Systems provides great service and friendly staff, highly recommend you schedule your maintenance and new installations through them! Anthony G attended us and was proffesional and knowledgeable!
About Controlling Systems
Controlling Systems is a trusted heating and cooling company serving the Denver, Colorado community for many years. They offer a full range of services for all makes and models of HVAC equipment, ensuring they can meet any climate control need.
The company is NATE-certified, factory-certified, and holds both ICC and EPA licenses, in addition to standard professional training and licensing. Their team members have decades of experience in the heating and air conditioning industry.
Customers praise Controlling Systems for their professionalism, expertise, and transparent communication. They appreciate the company's ability to answer technical questions thoroughly and provide clear, straightforward solutions. In particular, Izzy has received outstanding feedback for being professional, courteous, and friendly. He explains issues in easy-to-understand terms, ensuring that customers feel comfortable making decisions without any pressure.
From furnace maintenance to boiler replacements and mini-split installations, Controlling Systems consistently delivers high-quality work and excellent customer service. They have demonstrated true expertise, completing projects ahead of schedule and at competitive prices. Customers express their satisfaction with the fast response times and the overall great experience, often recommending the company to others.
Reviews
Dec 2025
My experience with controlling Systems was excellent. Jim and Elijah installed an AC unit and an attic furnace. They worked continuously for two days until completing the install. At all times they were cordial, thorough and kept me up to date with every component of the install. In addition they both spent time answering all of my questions during the install and after. Finally, I accepted proposals from several HVAC companies before choosing CS. I chose CS because their proposal was the most affordable considering everything included and also because they seemed the most knowledgeable.
Dec 2025
I'm very happy I went with Controlling Systems for my major HVAC system overhaul! I upgraded to an electric heat pump hybrid heating/cooling system and an electric heat pump water heater. Chris was very knowledgable about all my different options, and worked with me to choose the best system for my house and my budget. He also got me all the relevant Excel rebates, saving me about $11,000 total. Elijah and his crew did a great job with the installation. Everything went smoothly and was completed much faster than I expected. I definitely recommend this company and would work with them again!
Photos
Hours
Monday Open 24 hours
Tuesday Open 24 hours
Wednesday Open 24 hours
Thursday Closed
Friday Open 24 hours
Saturday Open 24 hours
Sunday Open 24 hours
Good to know
- on-site services
- accepts credit cards
- offers military discount
Location
7000 N Broadway #1-106, Denver, CO 80221
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