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Thornton Heating Service, Inc.

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 Since 1959, Thornton Heating Service, Inc. has been here to serve the needs of  Chicago’s North Shore communities. Thornton started out as a privately owned service for the installation and repair of hot water and steam heating systems. Over time, their dedication to work ethic, commitment to excellent service, and unsurpassed customer satisfaction turned them into the most trusted heating, cooling, and air quality services company for North Shore communities.

The Starck family continues to build and maintain the stellar reputation of Thornton Heating Service by carefully selecting only the best name brand products in heating, cooling, comfort, and safety. Thornton hires only the best and most skillful heating and air conditioning technicians for installation and repair of HVAC products.

Thornton Heating Service, Inc. proudly continues to provide comfortable, efficient, and healthy systems. They install and maintain each system carefully, thoroughly, and with expert follow-up to the full satisfaction of their customers. 

Unwavering commitment to the highest quality products and outstanding customer service earned the company an A+ rating with the Better Business Bureau for the greater Chicago area. And, of course, an accreditation as a valued Trane Comfort Dealer.

But most importantly, Thornton has earned the trust of their many repeat customers over the years.



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Wells Fargo Financing


Libertyville, Illinois 60048


NATE Certified
Charter Member
24/7 Emergency Service