Emergency Service

We Provide Fast and Affordable Emergency Services

Call Us for an immediate response
(303) 762-1421

Get a Free On-Site Estimate

We have years of expertise in providing heating, water heater, air conditioning and indoor air quality solutions.

(303) 762-1421

Controlling Systems, Inc. offers coupons & discounts off your next energy system service.

Get Savings On Energy Systems Today!

Controlling Systems, Inc. understands the large investment you make in your home or business property. That is why we are always looking for ways to help you save a few dollars! Xcel Energy has named us the Top Rebate Producer as a result of this mindset.

Controlling Systems, Inc. offers a free, no obligation, no pressure, in-home estimate whenever it is convenient for you.

What We Offer

Our team is dedicated to offering you coupons, specials, rebates, and benefits to make your investment in us worthwhile. One way we do this is through our Preferred Client Club, or PCC for short. As a member of the Preferred Client Club, the power is in your hands. Members of the PCC have access to exclusive benefits, like a lifetime warranty on all parts, 10 percent discount on all parts and labor, no overtime charges, and much more!

You Asked, We Heard!

We listened to our customers and have an innovative way to answer your needs! We give you the control with our Preferred Client Club. The Preferred Client Club is one of the many ways we try to make life easier for our clients. Call today to learn more!


Controlling Systems, Inc. is proud to be a Ruud Pro Partner

We have the most extensive knowledge in installing, repairing and maintaining Ruud equipment.


Call Controlling Systems, Inc. in Denver Today!

Founded in 1976, we are a leading choice in the Denver metro area for HVAC repair. We strive to help our customers to reduce their energy costs and usage while increasing the level of comfort in their home or business. Whether you are looking for furnace and AC repair, or installation services, you can trust your system in the hands of our capable technicians.