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Denver's Metros Trusted HVAC, Electrical and Solar Company.

Since 1976

Residential Heating, Air Conditioning, Indoor Air Quality, Electrical, Solar Power Systems, and more.
Serving the Greater Front Range since 1976.

Experience Year-Round Comfort and Improved Indoor Air Quality

At Controlling Systems, we’re your one-stop shop for reliable and professional HVAC services in the Denver metro area. With over four decades of experience, we’ve been a trusted partner for countless homes, ensuring their comfort level throughout the changing seasons. Whether you’re facing a malfunctioning air conditioner on a hot summer day or need furnace repairs, heat pump, boiler or water heater services to keep your home warm during chilly Denver winters, our qualified heating and cooling contractors can handle it all.

About Us

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.

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.

Experience Year-Round Comfort and Improved Indoor Air Quality

HVAC, Electrical and Solar Services

As one of the trusted HVAC companies in Denver CO, We offer comprehensive heating and cooling services for your Colorado home, including air conditioning and furnace maintenance.

Our Client Reviews

Thomas Kocjan

21:56 10 Jan 24

Izzy was on time, knowledgeable and helpful!

Mary Emlen

16:14 04 Jan 24

Izzy was informed, helpful, answered questions knowledgeably and polite.

Lance Smith

01:27 03 Jan 24

Controlling systems was great to work with, Andy the service technician made it all happen it just hours. Found parts and got my furnace up and working! Thanks for all that you did.

Troy Moore

04:51 30 Dec 23

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 @ TK Properties.Update 12/29/23: again I had Controlling systems handle the maintenance at my home and rental properties. Izzy is one of their best. He is very detailed and doesn’t miss anything. Very happy with him and Controlling Systems. Great Company with Great People.

Audrey Knipe

00:47 20 Dec 23

Cynthia Lizarraga

22:03 05 Dec 23

My furnace failed over the holiday weekend. Controlling Systems exceeded my expectations. They came quickly, discovered the problem quickly and corrected it quickly. And their fee was quite reasonable. I would recommend them without hesitation. They were very professional and very pleasant.

Robert Bond

19:14 22 Nov 23

WOW! Rudy and his team were able to do a highly complicated install of duct work and a few mini-splits in our home within such a short period of time. They were also very professional and beyond helpful with troubleshooting and problem solving as the project unfolded. I would 100% recommend them in comparison to every other Colorado contractor team we've worked with over the years. Cant wait to use them again for our needs that may arise.

Marie Cook

00:37 21 Nov 23

They came out promptly for the quote and sent the quote the same day. Ryan explained issues that needed to be addressed at installation better than anyone else had. They can do electrical work without us having to find an electrician. He seemed to understand all about the rebates and how those can help reduce the cost. They had availability to do the job quickly. I felt very comfortable having them do my water heater installation.

Pj Steffen

17:17 15 Oct 23

I met with the team for the first time today. I have to say, I was very impressed with their knowledge and recommendations. This is the third bid I am obtaining to replace a century old boiler, and the first two companies couldn’t answer technical questions other than ‘that option just costs more.’ I haven’t received a bid yet from Controlling Systems, but so far their intuitiveness and attention to the obstacles of my old home was appreciated!EDIT 10/15/23: Wow. Seriously. Bailey and his team were absolutely outstanding from start to finish. Their bid came in as one of the lowest and with the most top of the line equipment. Removing the old boiler was a daunting task they navigated expertly, took extra steps to make sure the new piping was routed per code (exhaust up and out the chimney rather than the side of the house), removed the old unnecessary piping, and the new copper pipes look like a work of art. We kicked it on and it is heating our home perfectly. They checked and bled all the radiators to make sure they were operating efficiently. Bailey has even been returning to clean the new filters from years of amassed iron sediment in the old radiators. They think of everything to make your new system run clean and have a long life. I cannot wait to see my energy bills go down this winter. Aside from the work being outstanding, they were all so nice and professional, available for immediate install, clean, and communicative every step of the way. Sorry for the long review, I’m just so pleased. Thank you, Controlling Systems. A million times over.

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.

Why Choose Controlling Systems?

Experienced and Licensed Technicians

Our team is highly trained and undergoes rigorous background checks to ensure your safety and peace of mind. They are also dedicated to continuous learning, staying updated on the latest advancements in air conditioning systems, heating, and indoor air quality technology to provide the most effective solutions for your home.

Quality Products and Workmanship

We use only the most reliable and energy-efficient equipment from leading manufacturers, ensuring long-lasting performance for your air conditioning unit, furnace, or heat pump, and minimizing your future repair needs. Additionally, our skilled technicians take pride in their meticulous workmanship, guaranteeing a professional and clean installation service every time.

Competitive Prices

We offer fair and transparent pricing without compromising quality on your AC repair, furnace repair, or installation service. We believe everyone deserves access to reliable HVAC services, and we strive to provide competitive rates that fit your budget. We also offer flexible financing options to help you manage your investment in your home comfort.

24/7 Emergency Service

Unexpected HVAC problems don’t happen on a schedule. That’s why we offer 24/7 emergency service, 365 days a year. Our team is always on call, ready to respond quickly and efficiently to address your urgent needs, ensuring your home comfort is restored as soon as possible, whether it’s a malfunctioning air conditioner in the summer or a heating issue during the winter.

Heating

Cooling

Indoor Air Quality

Electrical

Solar

Peace of Mind with Controlling Systems

Beyond our comprehensive services, we prioritize providing our customers with peace of mind. We understand that unexpected HVAC issues can be stressful, which is why we offer:

Upfront quotes

We provide transparent pricing before any work begins on your air conditioning repair, furnace repair, or installation service, so you can make informed decisions.

Flexible scheduling

We work around your busy schedule to accommodate your needs, offering convenient appointment times for your AC repair, heating repairs, or installation.

Guaranteed satisfaction

We stand behind our work with a 100% satisfaction guarantee. If you’re not happy with our service, we’ll do everything we can to make it right, ensuring your complete satisfaction with your improved comfort in your home.