24 Hour Emergency Service Available (708) 499-HEAT (4328) or (708) 423-9580

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Quality Work … Since 1927!
  • “ Thank you and your staff for your help this holiday weekend! …your family installed my dad’s first furnace in 1955 & every one since. What a legacy! ”
    - Dorothy Flynn
  • “ You have an excellent team, Mr. Doornbos. ”
    - Jeanne Sencion
  • “ You and all the people we dealt with were really nice. If we can ever recommend your company to anyone, we certainly will. ”
    - Ray Szarzynski
  • “ I called Doornbos because my cousin said your company is honest and competent. He was right!! ”
    - Karen Darr
  • “ I have been dealing with Doornbos for over fifty years. Thank you. ”
    - Robert Ulatoski
  • “ It’s awfully nice to know there are still people like you out there when you need someone's help. ”
    - Dave Gaichas & Family
  • “ I told all of my co-workers to call Doornbos! They are the best! ”
    -Mr. & Mrs. Yodka
  • “ Doornbos always comes through and will always be my first choice in my heating and air conditioning needs. ”
    - Joe Kriss
  • “ Thank you for keeping the great service your company has been providing its grateful customers for nearly a century. ”
    - Bernice and Jim
  • “ I will always call your company for service. Thank you so much for an excellent job. ”
    - Mrs. W. Gragido
  • “ The service technicians that respond to our needs have been of great support and help to our skilled maintenance staff. ”
    - William Glotz, Maintenance Manager
  • “ I would like to commend Doornbos Heating and Air Conditioning for outstanding service and professional
    workmanship. ”

    - Don Dreher

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Residential Heating & Air Conditioning Services for Chicago, IL and Surrounding Area

24 Hour Service & Repair

We offer 24 hour emergency service on all types of heating and air conditioning systems. Our N.A.T.E. certified, factory-trained technicians can handle all of your service needs from licensed warranty and post-warranty repairs, to immediate emergency response.

Energy Efficient Systems & Quality Installations

With today’s rising uncertainty surrounding utility costs, homeowners nationwide are becoming more and more interested in finding the best, most economical solution for indoor heating and cooling. We specialize in creating customized home comfort systems tailored to your needs with a broad selection of residential heating and cooling products. We will work with you to help you choose the best system for your home.

At Doornbos, we understand the importance of an efficient system installed by a qualified contractor. That’s why we work to the highest standards in the industry and offer our exclusive Performance Guarantee.

Heating Systems

No other single system in your home plays a larger role in your comfort or how much your ongoing utility bills will be than your heating system. We specialize in cost-effective high-efficiency heating solutions, including natural gas and electric furnaces, boilers, and electric heat pumps. We also provide annual maintenance agreements and energy audits of your heating system to evaluate its efficiency.

  • Steam & water boiler installation or replacement
  • Radiant heat solutions
  • Gas furnaces
  • Electric furnaces
  • Heat pumps
  • Snow melt systems

Air Conditioning

A high-efficiency central air conditioning system can keep your whole house comfortable while keeping utility costs low. If you are happy with the system you already have, we offer routine maintenance agreements that can help extend its useful life.

  • Conventional ducted systems
  • Space pak systems
  • Ductless systems

Hybrid Systems

Hybrid Heat systems deliver exceptional performance by using a heating source that provides its most energy-efficient comfort during moderate heating conditions. As the temperature drops outside, the system automatically switches to your second heating source when that becomes the most economical way to keep your family comfortable


Hybrid Heating systems include a gas furnace with a heat pump to provide soothing, superior comfort during both heat pump and furnace operation. This powerful combination can deliver heated air temperatures that are warmer than most traditional heat pumps so air from your vents feels warmer to the touch.


Because a Hybrid Heat system also provides cool, indoor comfort when it’s hot outside, this system becomes your total, year-round indoor comfort solution. With the recent increase in the SEER rating (SEER = Seasonal Energy Efficiency Ratio) of air conditioners and heat pumps, a Hybrid Heat system could also save you money during the cooling season.

Read testimonials from our residential customers.

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