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NATE Certified HVAC Company


Thornton Heating Service, Inc. is proud to be your NATE certified HVAC partner in Libertyville, IL. All our technicians are NATE certified and qualified to perform all HVAC repairs and installations in your home.

This certification represents real working knowledge of HVAC systems and is designed to allow us to be certified in specific knowledge areas. We earned installation, service, and senior certification in one or more of the following specialty areas: