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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Online Reviews

Find out what our customers are saying by reviewing the testimonials below.

“Doornbos has been our heating and air conditioning service since the 1990s. They have always been prompt, informative, courteous and honest and their prices are fair. They have come out immediately when there was a problem without having to fight for them to do so. Above all we know their service will be the best. ”

— Philip and Carol - Mokena, IL

“Always see the trucks around the neighborhood and here good things...1st time using DOORNBOS though. Service tech was excellent...did an excellent job and was informative and courteous, also went above and beyond to assist in additional questions and made the effort to find out who would be better able to help me in what I needed for future service. Thank you.”

— Nancy and Kelly - Chicago, IL

“When a problem occurred with the new unit, response was immediate to fix the problem. This is the second Space Pak system Doornbos has installed for us.”

— Jacqueline - Hinsdale, IL

“Service very professional. Technicians seemed well versed in their job.”

— Robert - Chicago, IL

“As always I am pleased with the work that Doornbos does. They installed my furnace/air conditioning 12 years ago and since then have always been professional, competent and courteous.”

— Michelle - Chicago, IL

“I have been a steady customer with Doornbos for close to 10 years and their quality of service has remained consistently prompt, good and dependable. Mike was very pleasant and thorough at our last service call on 9-25-12. I will continue to count on Doornbos to keep my home warm in the winter and cool in the summer. Thanks for great 10 years and to many more!!!”

— Catherine - Evergreen Park, IL

“My husband and I have used Doornbos for over 30 years. I am widowed now and will continue with the reliable service plan as I feel confident in the services provided.”

— Peggy - Tinley Park, IL

“Mike did a wonderful job. Most Cool!! If I were texting Beth, I'd text HLMG (Hang loose, Mother Goose.) In winter, most heat not most cool. Ho,Ho.”

— Dan - Evergreen Park, IL

“Was having problems with my air conditioner and called for service. Technician arrived on time and informed me of the maintenance plan for air conditioner unit and furnace that would save me money instead of just getting and paying for the service for fixing my air conditioner unit. Very pleased with their service.”

— Paula, Oak Lawn, IL

“Mike, the tech that tuned up our furnace did a fantastic job. He answered all my questions and was very knowledgeable and personable. We have a contract with Doornbos and will continue to do so. ”

— Raymond, Burbank, IL

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