When the Weather’s at its Worst. We’re at our Best.

About Us

We Do The Job Right The First Time

Thornton Heating Service, Inc. opened its doors in 1959 to serve the needs of Chicago’s North Shore communities. This privately-owned business started by installing and repairing hot water and steam heating systems.

Over the years, our strong work ethic and commitment to our valued customers have helped us grow to become one of Chicagoland’s most trusted heating, cooling, and air quality services companies. A foundation for our success has been the meticulous and careful selection of only the best name brand products in heating, cooling, comfort, and safety.

Under continuous ownership of the Starck family since 1974, Thornton Heating Service continues to provide these exceptional products combined with highly-skilled services across the North and Northwest Suburban area of Chicago.
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Thornton Today

Our goal is 100% customer satisfaction, and it drives everything we do. Our “customer first” attitude is evident in everything we do, including:

These are just some of the reasons Thornton has earned a reputation for doing the job right the first time.

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Choosing Your New Comfort System Provider is an Important Decision

Here’s Why Thornton is Your Best Choice

Experience You Can Trust

Thornton Heating Service is proud to offer an extensive array of reliable, energy-efficient products and services for your home or business. We’ve been serving the Chicagoland area since 1959.

Expertise

We offer a high level of expertise and our installers and technicians are trained on a regular, on-going basis. Installers and technicians are certified by major industry organizations.

Quality Products

We carry only the highest quality products from major manufacturers proven in the industry. This includes the most advanced and innovative technologies available.

Responsive

Your satisfaction is our highest priority. We’re just a phone call away when you need us and pride ourselves on our rapid response time and excellent service.

Reliable

We know that keeping your family comfortable and healthy and protecting your home all year long is important. You can depend on us when you need it.

Guardian Protection Program

We offer every customer our Guardian Protection Plan that includes a Home Comfort Protection Plan

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.

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We earned installation, service, and senior certification in one or more of the following specialty areas:

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From heating to cooling and beyond, get reliable HVAC services from Thornton Heating. Book your appointment today!