Controlling Systems Heating & Air Conditioning

Since 1976

Residential Heating, Air Conditioning, Indoor Air Quality, And More.
Serving the Greater Front Range since 1976.

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Controlling Systems

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.

HVAC Services

We provide all the services you need to achieve the level of cooling comfort you want in your Denver, CO, home from your air conditioner.

Air Conditioning

These days, air conditioning (AC) is no longer a luxury. When outdoor temperatures soar, you want the cool comfort an air conditioning.

Air Ducts

Air ducts play a vital role in circulating conditioned air throughout your home. To help improve your Colorado, home’s airflow and indoor air quality (IAQ), you want your air duct system.

Boiler Repair

Boilers are efficient and reliable, making them a great way to achieve the comfort level you want in your Colorado, home. At Controlling Systems, our experts regularly install, replace, repair, and maintain boilers.

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.

Leading the Denver Communities Into the Future With Energy Efficiency

Since 1976

Latest News

Our Client Reviews

Thomas KocjanThomas Kocjan
21:56 10 Jan 24
Izzy was on time, knowledgeable and helpful!
Mary EmlenMary Emlen
16:14 04 Jan 24
Izzy was informed, helpful, answered questions knowledgeably and polite.
Lance SmithLance 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 MooreTroy 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 KnipeAudrey Knipe
00:47 20 Dec 23
Cynthia LizarragaCynthia 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 BondRobert 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 CookMarie 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 SteffenPj 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.
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