Denver's Premier Heating and Cooling Experts Since 1976

Heating, Air Conditioning, Indoor Air Quality & More

Denver HVAC Company

Personally Invested in Your Comfort

Controlling Systems has been a part of the local community for generations, providing high-quality heating and air conditioning services in Denver that your neighbors trust to keep their homes at the height of comfort. 

We work with all makes and models of HVAC equipment and provide a full range of high-quality services, all so that we can meet your every climate control need. 

Our company is NATE-certified, factory-certified, and ICC and EPA licensed in addition to their standard professional training and licensing, so you can trust that they’re qualified to handle anything you throw at them, big or small.

Our team members have been in the heating and air conditioning business for decades – let them show you what they're capable of by calling (303) 963-9530 today to schedule service in Denver or any of the surrounding areas!

Areas We Serve
Serving local businesses, homes, and families since 1976. Take a look at the areas we help.
  • Ruud
  • Mitsubishi Electric
  • Aprilaire
Maintenance Plan
Take care of your HVAC system, so it can take care of you. Our maintenance memberships are designed to save you money over time, effectively lowering the lifetime cost of ownership, while extending the life span of your equipment.

    Our Team Can Handle All of Your HVAC Needs

    How Can We Help?

    As a local business, we believe that it’s our job to take care of our community. We do our part to not just service your heater and air conditioner, but ensure that your hard-earned dollars stay in Denver where they belong. Plus, we’re seriously committed to customer satisfaction – if you aren’t satisfied with any of our services, our president, Bill East, will personally accept your call and find a solution to your issue.

  • Air Conditioning
  • Heating
  • HVAC Maintenance
  • Water Heaters
  • Ductless Systems
  • We offer a wide range of heating and cooling services. Explore our services page to learn more!

    All Services

Why Our Customers Love Us

Our Reviews
  • “Bailey and Controlling Systems were a pleasure to work with. Even with the cold weather approaching, they were able to get out to my house early the next day, had great communication, and fixed my older furnace in a quick and timely manner.”

    Matt A.
  • “After I understood what to look for and obtain, I wanted a mini ductless system for one room, that is not connected to the rest of the ducted house.”

    Mark M.
  • “So far, I am quite pleased. They were quite personable and answered questions.”

    Shizuko H.
  • “Very efficient and polite.”

    Shelly M.
  • “Controlling Systems installed a new furnace for us years ago, and everything went as smoothly as could be, so we hired them again to install a new air conditioner this week.”

    Christen S.
Any Service Repair $50 OFF
Valid on service repairs only. Cannot be applied towards diagnosis or trip changes. Not valid with any other offer or special. Offer subject to change without prior notice.

Guaranteed Quality at Affordable Rates

At Controlling Systems, we like to think that it's our job as Denver HVAC contractors to ensure that everyone in our community has access to budget-friendly services that get the job done right. Not only do we provide straightforward pricing with no hidden fees or upcharges, but we provide flexible financing plans that ensure our customers can pay for the services they need on their terms. 

No matter what your budget looks like, we’ll find options tailored to your unique needs. We even offer a standing 5% discount to senior citizens and military service members. And whether you’re getting your services at the standard price or at a discount, we never compromise on quality – everything we do is done the right way, and our technicians are always held to the highest professional standards. 

If you need professional HVAC services in Denver or the surrounding areas, make sure you ask what special offers and money-saving options our team at Controlling Systems can come up with for you!

Take advantage of our training, skills, experience, and customer benefits to create the ideal indoor environment for your family. Call (303) 963-9530 or reach out to our Denver HVAC team online today to schedule service!

We Do It Right the 1st Time

Why Choose Controlling Systems?
  • Helping Customers Since 1976
    Over the years, our team at Controlling Systems has become the experts in providing solutions to HVAC problems.
  • Experienced and Licensed
    Our company is NATE Certified, Factory Certified, ICC, and EPA Licensed so you know we are the best in the industry.
  • A Team You Can Trust
    We are an independent and locally owned business with a long history in Denver. You can rely on us for expert solutions and fair pricing.

Contact Us

Take Control of Your Home or Business Today!
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