(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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Professional Affiliations & Certifications

Our commitment to quality is at the highest level in our industry and we are proud to be members of the following leading industry organizations:

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Air Conditioning Contractors of America (ACCA)

ACCA is a group of over 4,000 air conditioning contractors who work together to improve our industry, promote good practices, and keep homes and buildings safe, clean and comfortable. ACCA is the largest association of HVACR contractors and the preferred service provider for members in all 50 states and worldwide.

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North American Technician Excellence (NATE)

Headquartered in Arlington, VA, NATE was founded in 1997 as the nation’s largest non-profit certification organization for heating, ventilation, air conditioning and refrigeration technicians. NATE tests technicians while others train. Testing validates the technician’s knowledge.

Doornbos is a N.A.T.E. Quality Circle Contractor

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Building Performance Institute (BPI)

BPI is an independent, not-for-profit leading developer of technical standards for home performance and weatherization retrofit work that are recognized across North America. From these standards, BPI has developed training programs, professional credentialing for individuals and company accreditations — including quality assurance programs — that help raise the bar in home performance contracting.

Comfort Institute

Comfort Institute, Inc. (CI) is an international indoor comfort research, training and consumer protection organization based in Bellingham, Washington with trainers and offices located throughout the United States and Canada.

 

Better Business Bureau- Chicago (BBB)

Doornbos is a member of the Chicago and Northern Illinois Better Business Bureaus. We are proud to maintain an A+ rating.

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