Doornbos has been providing quality, reliable heating and air conditioning installations and service to the Chicagoland area since 1927. Doornbos has provided customers with dependable products from America’s finest manufacturers including all types of equipment and accessories.

Our reputation is built on over 80 years of consistent performance and satisfied customers.

We have been working for some families for 4 generations –that's loyalty!

Award Winning

We have earned the Carrier 2009 President's Award for being a model factory authorized dealer.

Doornbos has been given an A+ Rating by the Better Business Bureau.

100% Satisfaction Guarantee – We have a 100% satisfaction guarantee on all Carrier residential installations.
This guarantee is a joint guarantee by Carrier (in business over 100 years) and Doornbos (in business over 80 years).
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Guaranteed Best Price on Carrier Products

GOLD STAR SERVICE – We are the first and only Local Company to provide true 24 hour emergency service, staffed by N.A.T.E. Certified technicians. When you choose Doornbos, you're choosing a proven professional.

Some Familiar Places with Doornbos Installations –
Click here to view a .PDF list of some familiar customers.

Local Union 597 Training Center / MCA
click below to read:
CBS 2 Chicago Investigative Report
by Pam Zekman.PDF