(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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The Doornbos Performance Guarantee

Performance Guarantee

Our NATE certified technicians thoroughly test each installation to assure quiet and efficient operation. You will be provided with a full written report in detail. View our Job Check-out Form (PDF).

Clean & Check Guarantee

We guarantee that our full service clean and check will be the most thorough clean and check your equipment has ever had or it's free. View our Clean and Check Report. Should you require additional service during the season we will return for free. (No service charge).

No Surprises Guarantee

  • The price that was quoted is the price you pay!
  • Our upfront and honest pricing includes taxes.

Cleanliness Guarantee

Our professional installers will take every precaution to prevent dust and dirt from contacting furnishings, carpets and flooring. We clean up to your satisfaction.

20 Year Workmanship Guarantee

We back up the craftsmanship of our installers with a twenty-year guarantee. Proper installation is the key to having a durable, efficient system.

Emergency Service Response Guarantee

With your new system we will include 24-hour priority service. Normal response time for emergency service is 2 hours or less.

100% Satisfaction Guarantee

We have a 100% satisfaction guarantee on all residential installations.

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