Controlling Systems logoApproved Pro
Approved Pro

Controlling Systems

Heating and Air Conditioning Service, Water Heater Service, Gas Leak Repair,

About us

Established in 1976. For over 45 years Controlling Systems has served the Colorado front range, providing unsurpassed customer service and relentless pursuit of customer satisfaction. Heating, hot water heater and air conditioning service, maintenance, sales and installation

Business highlights

Family owned & operated
Emergency services offered
LGBTQ+ Friendly
49 years of experience

Services we offer

Service And Installation of Furnaces, Air Conditioning, Evaporative Coolers, Water Heaters, Fan Coils, Boilers, Heat Pumps, Humidifiers, Ventilators, Thermostats, Filtration, Indoor Air Quality

Amenities

Eco Friendly Accreditations

Yes

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Senior Discount

5%

Accepted Payment Methods

  • Financing Available
  • Check
  • Visa
  • Discover
  • MasterCard
Reviews
4.313 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
69%
4
8%
3
8%
2
15%
1
0%

Filter reviews by service

Showing 1-13 of 13 reviews
Izabel K.
Jul 2022
5.0
Heating and Air Conditioning Service, Water Heater Service
Yes, I recommend this pro
Every step, from the estimate with the super friendly Ryan, to the final walk-thru with the always professional Gemini, was absolutely top notch. They installed a new furnace, A/C, and tankless water heater and we are very happy with the work and final outcome. The whole crew was wonderful!
Response from Controlling Systems
"[Member Name Removed], Thank you for taking the time to share your experience. On behalf of all the employees at Controlling Systems, thank you for your business!"

Milton G.
Jun 2021
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
The work done by this company, especially Roman & Josh, was professional, and nothing short of amazing. Overcoming a few obstacles, they went above and beyond to make sure the project was done the "right way". Their workmanship, cleanliness, and overall positivity says a great deal about their training. Management and ownership should be commended because everyone's efforts are noticed. Thank you so very much for a job well done.

Melissa S.
Jun 2018
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$10,000
We had an excellent experience with Controlling Systems from the first phone call to our install. All the professionals were prompt, friendly and hard working. We had a lot of questions throughout the process and they answered every one. The prices seem right in line with the industry and we were overall very happy with their work.

Travis P.
Aug 2014
2.0
Heating and Air Conditioning Service
$200
Fixed the air conditioner to work and it was fine.... Wanted to reduct my entire house instead of install the ductless system upstairs like I requested. Told me the cost of either one would be $3000, but that re-doing the ducts would only improve the problem by 50%. I opted for my original request and when he called me back, he doubled his price for the ductless AC system from $3000 to $6700 and said he wanted to re-do my ducts instead. I called two seperate contractors who confirmed: 1. There was nothing wrong with my duct work, and 2. The ductless unit should cost about $3000 not $6700. Very disappointed in the company and Gus.

Robert K.
Jul 2013
3.0
Heating and Air Conditioning Service
$600
The repair was made.  Sean, the service tech was courteous and professional and obviously knew what he was doing. He replaced the circuit board which took less than 1/2 hour and for that I was charged $597.00. Thinking that the circuit board was pricey (Sean, the service tech indicated so), I thought the repair bill of $597 was reasonable.  Only after calling some stores (the next day) and finding out a circuit board cost $125 did I realize I got ripped off. Controlling Systems labor charge for 1/2 hour work amounted to $472. I called the owner/guy in charge to request a refund for part of the labor charge. (I really didn't expect to receive anything) Not only did this person(whose name I wished I remembered, I would state it here) not want to hear my complaint, he hung up on me because he knew he ripped me off. He was rude and didn't want to hear my complaint. He obviously didn't want to hear anything I had to say, only stating that I agreed to the repair charge beforehand. To that he's correct, I did agree to the charge but when I asked Sean what was the cost of the circuit board, he said  $250-300. Now I know parts are marked up when purchased through a company such as CS but I still believe this company took advantage of me. ( and probably hundreds of others out there). Controlling Systems did not provide parts cost, labor costs, etc in their estimate which they used to (I had used them 3 years ago, but I won't ever use them again) Future potential customers take heed: I WOULD ALWAYS REQUEST THE ESTIMATE REPAIR BILL BE BROKEN DOWN to parts cost, labor cost, etc. And if they tell you they can't provide that, that's a good sign you're being overcharged.
Normally I am careful about negotiating and reading the fine print, etc. but this day I was distracted and the temperature was in the teens. I wanted the furnace fixed and I didn't have time to get estimates. Also if I hadn't  used Controlling Systems I would have been charged the $100 diagnostic(service) charge. Lastly, Sean intially quoted me $700. When I told him I was going to get other estimates, he lowered the estimate to $597.
Response from Controlling Systems
"[Member name removed], Thank you for your response. I appreciate you taking the time to share your experience. Needless to say I was concerned with your review. I understand that today, with the internet, customers have access to approximate costs for some parts and pieces needed for repair. What you need to know is that the cost of the part is only a fraction of the total cost of repair. The cost includes the training the technician needs to properly diagnose the problem, the necessary insurances, the vehicle and fuel to get to your home as well as picking up the part, the office, staff and technologies to operate and provide historical data. This list goes on and on. No profitable company sells its parts and services for what it cost them. If they did they would be out of business. If we are out of business we can't honor the 2 year part and labor warranty we offer on repairs that we do. The price we quoted you for the replacement board is a very competitive quote compared to other HVAC companies in the Denver market. As far as your phone conversation with someone in the office. I sit centrally located in the office and hear a majority of the calls that come in, and don't recall any conversations ending by hanging up on the customer. I have worked very hard to create a customer service focused company. Based on reviews from multiple services, I think we have done a great job instilling the value of customer service. If that happened I truly apologize and assure you that had I heard that conversation there would have been repercussions for that that employee. I hope this explanation helps you understand our pricing a little better. I also hope that next time we do work for you it results in a far better experience. Please feel free to call me with any questions or concerns. Thank you again, Bill East President Controlling Systems Inc. 303 762-1421"

Kevin S.
Feb 2013
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$43,754
Controlling Systems was one of four different companies that we contacted for quotes on a furnace replacement.  Although we have a complicated layout (hard to get to combustion air), Gus at Controlling Systems wasn't fazed in the least.  He was clear, concise and professional ? amending the proposal as i learned more and changed my needs based on what I heard from other contractors.  In the end, Controlling Systems had the lowest price (in fact, nearly $1000 less for a Rheem 95% Eff. continously Variable, Dual Stage system than another contractor quoted for an 80% system) and the fastest turnaround time.  The team arrived onsite at the time promised, removed the old system (not easy in my house) and installed the new system complete with new combustion air in about 6 hours ? less time that they projected and a full day fasted than another contractor quoted.

Barry F.
Sep 2012
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$100
Outstanding.

Joy B.
Sep 2011
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
They are great. They come out the day we call. They do excellent, honest work. I would highly recommend them.

Laurie S.
Sep 2010
4.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$4,645
So far as I can tell, the quality of the products and the quality of their installation was fine. The furnace includes PVC pipe venting both to bring combusting air into the furnace from the outdoors and taking exhaust gases outdoors through another PVC pipe through a concentric vent in the outside wall. This process is designed to prevent any exhaust gases in the basement or any bad negative air pressure in the basement. The furnace is an energy star with 95 percent efficiency. The only negative aspect of all this was Controlling Systems' behavior relating to scheduling as described in the section above.

HALEY H.
Oct 2008
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$2,000
Controlling Systems was very easy to work with. They worked with our budget and needs and tried to get us the best price for our unit. When we called with a competitive quote (lower) but wanted to go with them, they were able to add an additional discount. The sales person and installers were both on time and very courteous. They covered the floors to protect them while they worked, and cleaned up after installation. After installation, the installer showed us how to use and maintain the system. We will definitely use them again for maintenance.

KAREN K.
Oct 2008
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
They provided a detailed bid. They were very professional. The bid I received was $3850.00.

David W.
Jul 2008
2.0
Heating and Air Conditioning Service
$2,500
At first, I thought they had done the work properly. Then the humidifier wouldn't turn off when it was supposed to, causing a lot of condensation to run onto the basement floor. Turns out the wiring was done incorrectly, which they fixed at no charge. Several years later, I noticed that many of the sheet metal screws in the duct work above the furnace were coming out, causing a lot of air leakage. And a city inspector noticed that another relatively minor element of the installation was done incorrectly. When I called Controlling Systems, the person I talked to was perfectly friendly and responsive. He offered to correct these problems and to install a different filter box on the side of the unit. My wife was at the house when the work was done. When I returned home, i discovered that the work had been done very sloppily. Duct mastic had been applied haphazardly and spilled on the basement floor with no apparent attempts to clean up the spill. And the new filter box was a joke. The filter that the technician installed was entirely too small, so the air was just going around the filter instead of through it. It just seemed that there was absolutely no pride of workmanship, so we'll be going elsewhere for our new air conditioner.

PAT C.
Aug 2007
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
I would highly recommend them. They were pleasure to work with!

JANE J.
Jun 2007
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$150
Our a/c now works so well it feels freezing at seventy five degrees. I am real pleased with the work this company did. They are detail oriented, they catch small problems and they charge good prices. I would hire them any day for heating or air conditioning work.

Licensing

Bonded

Insured

State Contractor License Requirements

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FAQ

Controlling Systems is currently rated 4.3 overall out of 5.

Monday: 8:00 AM - 5:00 PM Tuesday: 8:00 AM - 5:00 PM Wednesday: 8:00 AM - 5:00 PM Thursday: 8:00 AM - 5:00 PM Friday: 8:00 AM - 5:00 PM Saturday: 8:00 AM - 5:00 PM Sunday: Closed

Controlling Systems accepts the following forms of payment: Financing Available, Check, Visa, Discover, MasterCard

Yes, Controlling Systems offers free project estimates.

Yes, Controlling Systems offers eco-friendly accreditations.

Yes, Controlling Systems offers a 5% senior discount.

Yes, Controlling Systems offers emergency services.

Yes, Controlling Systems offers warranties.

Controlling Systems offers the following services: Service And Installation of Furnaces, Air Conditioning, Evaporative Coolers, Water Heaters, Fan Coils, Boilers, Heat Pumps, Humidifiers, Ventilators, Thermostats, Filtration, Indoor Air Quality