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These are two very important questions for you to consider when allowing someone to work in your home or office. Allowing anyone to install, repair, upgrade, or otherwise alter expensive and sophisticated equipment should not be taken likely. Most importantly, do you trust this person with your life and the lives of those who occupy your home or business.

Corcoran Heating and Air Conditioning was established in 1983 in Hoffman Estates. Today, the company is run by father-and-son team Tom and John Corcoran, and their nine employees.
Services
At Corcoran Heating and Air Conditioning we are streamline to assist with service and repair capabilities for your home or business. We can offer prompt response to your requests and needs 24/7/365. We offer repairs, services, maintenance, and replacement on all of the below listed equipment. Our unique background and continual education offers clients a level of HVAC expertise they may not be used to or aware of.
At Corcoran Heating and Air Conditioning, we don't just fix your heating and air conditioning equipment-we focus on the health and performance of your complete comfort system. We guarantee that our technical approach to service and installation will make a significant difference in the comfort of your home or business environment, while potentially saving thousands of dollars in heating and cooling costs.
If you suspect poisoning there is a blood test that can be done at doctors or hospitals that check the levels in your blood. Be sure to mention it to your medical professional as it is not a regularly used test. This ensures symptoms are not simply confused as the flu virus. Note: Some store bought monitors alarm if they are in need of new batteries.
As our thanks to you for dropping us a nice note about our services, referring us to friends, family and co-workers or for shooting a raving fan video, we want to give you a chance for something in return. We will automatically enroll you into our twice yearly giveaway of a new bicycle or flat screen TV.
Reviews (9)
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Saket Khemka
Nov 24, 2020
Here is how they operate - I called them to get the furnace checked. They asked me that the cost would be $89 for the check-up and if I would like to go ahead with the repair, that would absorbed in the repair cost. So, they came to inspect right on time (that's the good part). After they inspected, they told be that the repair would cost me somewhere between $800-1000. Since, it would have made sense to get the furnace replace rather than pay that high amount, I tried to decline the repair.

They mentioned, if I decline, I would need to pay them $240 for the check-up! WHY? Because they said the diagnosis took them more time than they thought. That is not my fault! Also, they told me to make the decision within few minutes because the check-up cost would go up every 15 minutes. I had NO option left but to go ahead with the repair service rather than take some time to evaluate the option. Never again!
Tscale
Feb 02, 2020
Would highly recommend the guys at Corcoran. They did work at my office and shop which included re-balancing air flow within each room. They took a highly technical approach and then did several mods on our existing system to make it all work much better than it every has. Corcoran did not do the original install, but I wish they had because they really known their stuff. Not to mention timely and professional as well.
Nick Zeppetello
Feb 19, 2019
Awesome Family Owned Company. Fixed a vent issue I have been putting up with since I bought the house. Looked at my furnace and vents and now my house is warmer and the heat kicks on less which I'm going to assume will save me money. I actually retired the space heater! Tom the owner also saw an issue with my water heater and carbon monoxide after he packed his gear up, and insisted that he fix the issue for my families safety. Charged me more then a fair price and possibly saved my life? Give Corcoran Heating a Call! They give you a much more personalized service then these national franchises. Couldn't be Happier!
Mike Lovda
Nov 24, 2017
On-time, professional, courteous, no upselling, explained situation and what repairs were completed. Despite number of HVAC repairmen choices in area, I will definitely use Corcoran in future again if/when needed. would highly recommend to anyone in need of HVAC services. -Mike
Nick Zeppetello
Dec 04, 2016
Its great to find a Family owned company that offers such great service from the first call to the maintenance appointments! John has offered me valuable advice which has kept my furnace running smoothly for years. Every HVAC technician they sent has been friendly and professional. I would never call anyone else for my heating repair needs. Thanks for being Great!
Mike Sobel
Nov 03, 2016
Not always the best service to have done, but when you are happy with it, the service must have been GREAT. I have to commend Tom (he worked on my home and business), he was very courteous and very knowledgeable. He even took the time to explain everything he was doing for me. I'll be using these guys in the future for maintenance and any service. THANK YOU!
Sharron Coffman
Mar 27, 2013
I just wanted to thank you and your staff for the recent work that was done on my heating system. In a time where customer service has been an 800 number and a non-descript individual showing up, it is refreshing to work with you and your staff when we had an emergency. We have been a customer of Corcoran Heating and Air Conditioning for over 15 years.

We had engaged you to clean/service our furnace and air conditioning in the spring and fall. Throughout this period of time, our equipment had always functioned flawlessly. The folks that have come out to perform the service have always been courteous and efficient. This past December, we awoke on a Sunday morning to a house that was 57 degrees with an outside temperature of 10 degrees.

I immediately called your office and got the answering machine. The message said that a technician would be notified immediately. Being a bit suspect that somebody would call back in a timely manner, I gave it a half hour. In fifteen minutes, I received a call back and the technician indicated that he would be out in less than an hour. He arrived at 9:00am and began working immediately.

After about a half hour he had the heat running again but indicated that the unit would need "a lot" of further work in order to get it operating safely and efficiently. He explained that multiple parts had failed and to repair it would be over a thousand dollar in parts plus labor. He suggested a new furnace. A little shocked, I asked if I could speak with you.

You stopped by my house early the next morning and went over everything again in detail. You explained the failed parts, why it was really not economically feasible to repair based on the age of the unit and why a newer unit would be more economically advantageous. To make sure we were getting the correctly sized unit, you measured the entire house including windows as the basis for calculating the furnace size.

In addition to suggesting the new unit, you also demonstrated a knowledge of the current manufacture rebates being offered and the tax benefit of getting a new unit. Lastly, because I agreed to the new unit, you gave me credit for the Sunday service call. Overall, this dropped the cost of the new furnace by over one thousand dollars. The new unit was schedules and installed on Monday.

This was only 24 hours after the old unit failed. Tim the technician arrived in the morning and began removing the old unit and installing the new unit. The installation was completed by the end of the day. About a week later we noticed a slight noise coming from the new unit. I called and you came out within a couple of hours. The problem was diagnosed as a faulty fan and a technician was out the next morning to repair it.

Since then it has been operating efficiently and quietly. Lastly, within three days or the installation, all of the completed paperwork arrived for the rebate and tax documentation. I'm generally not inclined to send out letter like this but I believe that one was warranted. We were between a rock and a hard place and could have been without heat and paid a fortune for a service call and a new furnace. Instead, you dealt with us fairly, professionally and quickly.

I wish all the folks I dealt with worked the same way as Corcoran Heating and Air Conditioning. If you ever need someone to speak to a new or existing customer about your company or service please feel free to give them my number.
Scotty Guy
Feb 06, 2013
From the first phone call to the office, I knew I had found the company with whom I was going to do business. When Brenda answered the phone she was helpful, friendly and efficient. I felt this same way when John came out a few days later to give me an estimate. He was professional and knowledgable and very detail oriented. We exchanged a few emails and a phone call after he provided me with a quote and I came to know how passionate he is for his business.

For the 21 years I have lived in my townhouse, I have always had a problem getting the master bedroom, which is located above the garage, to the same temperature as the rest of the house. It is either too warm in the summer and too cold in the winter. John suggested I add additional ductwork to the bedroom, a suggestion other contractors had never proposed.

When I received a quote from John, it was very detailed and was $1000 less than what I received from another contractor who also proposed an air conditioner and furnace of lesser quality than a Trane. The other contractor proposed adding a separate zone for my master bedroom, which I have heard from other contractors would most likely not solve my problem. John's quote was extremely detailed and thorough. Corcoran HVAC also provides a Heatmaxx/Coolmaxx system efficiency set up which is a value added perk few companies provide.

They also remove all of the old equipment and packing materials from the new AND sort it and recycle it, which I really value. The day of the installation went extremely well. Tim, Greg and Mike arrived on time and quickly went to work assessing what had to be done, which was quite a bit. They were efficient, knowledgable and great problem solvers when challenges arose in my home.

I felt completely confident in their ability to do quality work and they lived up to my expectation. Not only do I have new equipment and training in how to use it, best of all, my master bedroom is now as cool as the rest of the house. After 21 years, I finally found a company who knew how to solve my problem and were able to provide excellent technicians to install the equipment at a very fair price. What more could I want?
Richie Moos
Jan 30, 2013
I just wanted to take moment an express my sincere gratitude and appreciation towards you and your company. As you know we had (2) two five year old Peerless Pinacle boiler at my home that we had lost all confidence in, and of course during the Christmas/New Year holiday break we had no heat. From the moment you call me to the day long service call to the installation of the new peerless boiler.

You and your men were nothing less than spectacular. It was your professionalism and truly caring attitude that made a frustrating situation so much easier to deal with. Every aspect of your company was of the utmost care and professionalism. From your relentlessness attitude in trying to repair the existing boiler, to the prompt professional courtesy that your men showed my family during the installation of the new boiler.

As per your advice, we took out both boilers and replaced them with one larger newer version of the Peerless boiler. I wanted you to know that your advice was dead on correct! The new boiler is working great, heating the home perfectly, extremely quit and extremely efficiently. So needless to say you are my new best friend. Please let this letter serve as notice that I will be recommending your company to EVERYONE I KNOW!

It is a truly comforting feeling to know that there are still people and companies out there that put their client's feelings and concerns before the almighty dollar. I'm a big believer in life "That what goes around comes around" and if you treat people right it comes back ten fold. Please feel free to use my name as a proud referral for your company!