Denver’s Premier
Heating and Cooling Experts

Since 1976

RESIDENTIAL AND COMMERCIAL HEATING, AIR CONDITIONING, INDOOR AIR QUALITY, AND MORE

Decades of Experience

Founded in 1976, we have decades of experience helping our customers to reduce their energy usage while increasing their comfort. At Controlling Systems, we pride ourselves on being Denver’s #1 premier HVAC contractor, as well as being a Ruud Pro Partner. This means we have extensive knowledge in installing, repairing, and maintaining Ruud heating and cooling equipment. Furthermore, we have expertise in the installation, preventative maintenance, and servicing of all heating, air conditioning, and indoor air quality products from all major HVAC brands.

GUARANTEED SATISFACTION

QUALITY EQUIPMENT

STRESS-FREE MAINTENANCE PLAN

45 YEARS OF EXPERIENCE

NO
HIGH-PRESSURE SALES

INDUSTRY LEADING WARRANTIES

Support Gus Aguayo's Fight Against Cancer

Gus has helped our customers for 20 years and now it is our turn to help him. Click the button below to follow and support Gus on his road to recovery!

Team member Gus surrounded by his wife and children.

Our Reviews

“Controlling Systems was able to come out and get our basement vents installed quickly and professionally. They were recommended by a friend and I would gladly use them again and refer them to anyone. Thank you all for a great job and keeping my project moving forward!!”
- Barry M.

“The whole crew esp Gemini and Vincent did a fantastic job installing and cleaning up after themselves. Left no trace they were here and gave a thorough explanation of how advertorial operated. Really appreciate their service”

- Robert H.

“Absolutely 💯 percent love this company. Hired them to put in a mini split. Process was easy abs straight up. No gimmicks no hassle and no tricks. This company stays in communication and in compliance. My product and my install was perfect!! The entire installation team rocked!! For sure I will use them again!!! Thank you!!”

- Troy M.

Controlling Systems logo. Plus sign. Synchrony logo.

We Have Financing Options Available

We partner with Synchrony, one of the nation’s premier consumer financial services companies. Expand your purchasing power with Promotional Financing through Synchrony.

hand shake icon

Leading the Denver Communities
Into the Future With Energy Efficiency

SINCE 1976

Our Accreditations

Energy star logo.
ACCA logo.
BBB logo.
Diamond contractor elitelogo.
RUUD logo.
Nate logo.

We Service All Brands