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About

At Thermosystems Inc. we work with contractors, engineers, architects and business owners to provide the right HVAC systems for their specific applications and project needs, always with a high level of response and service. Customers across Chicago, Northwest Indiana, Central and Southern Illinois turn to us not only for the diverse range of products we sell, but also for our expertise in the design and application of each and every product. Our team includes degreed engineers and LEED-certified experts to help you achieve your efficiency, energy and project goals.

How can the Thermosystems team help you?

  • Help select equipment
  • Assist in layout
  • Provide technical product assistance
  • Develop specifications
  • After installation support

Founded in February 2000, Thermosystems has grown to better serve your needs. Today, our 24,000 square foot headquarters in Elmhurst, Illinois features office and warehouse space, a Parts Showroom and a large conference and training facility. We also have an office located in Peoria, Illinois to serve the Central and Southern Illinois market.