(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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Combustion Appliances & Carbon Monoxide Testing

If you work or live with appliances that burn fuel, then you are at risk for exposure to carbon monoxide. Anything that makes a flame, whether it’s your furnace, water heater, gas oven or automobile, gives off carbon monoxide and could be potentially dangerous without the right precautions.

Digital Combustion Analysis and Adjusting

At Doornbos, we train our technicians to test combustion appliances and adjust them to maximize efficiency and minimize any potential carbon monoxide risks. Properly adjusted appliances will save you money by reducing the amount of fuel required for proper performance and extend the life of the appliance by reducing residue and wasted fuel.

Carbon Monoxide Testing

Carbon Monoxide testing is a vital process that should be performed on every fuel burning appliance in your home. Testing appliances for Carbon Monoxide safety and combustion analysis tuning is something most heating and plumbing contractors may not have been properly trained to do. The probability is that most contractors will install a new furnace or hot water heater and rarely do any combustion safety and efficiency analysis. Most rely on factory settings that rarely provide maximum efficiency and definitely do not guarantee safety.

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