Better Buildings Start With Better Partners
As a full-service HVAC solutions provider, our mission is simple: we are your partner in performance, providing guidance and expertise from the earliest design conversations through installation and ongoing support.
As a member of Daikin Group, our team provides expert guidance at every stage of a project. From HVAC system design and equipment selection to building automation, service, and parts, we help customers make informed decisions and keep buildings operating at peak performance.
Solutions include:
- HVAC system design and engineering support
- Commercial HVAC equipment selection and purchasing
- Installation coordination and project support
- Preventative equipment maintenance and service
- Aftermarket HVAC parts sourcing and local warehouse
- Building automation and control systems integration
- Ongoing technical support from factory-trained professionals
We support commercial and industrial customers across Chicagoland, Central Illinois, Northern Indiana, and Iowa. With deep industry experience and strong partnerships with over 25 leading HVAC manufacturers, our focus is helping customers improve comfort, efficiency, and long-term system reliability.
Our Solutions
Get competitive pricing from qualified experts on public bids by filling out our bid form.
Your expert source for HVAC parts, delivering prompt and precise solutions with a consistently growing robust inventory.
Dependable specialists providing customized service using factory parts, ensuring swift repairs with minimal ongoing maintenance.
Clear and user-friendly solutions that seamlessly integrate your HVAC network to deliver precise climate control, proactive system maintenance, and simplified building management.
Our Daikin air-cooled rental chillers are built for fast deployment and flexible performance, delivering reliable cooling for emergencies, maintenance, or seasonal demand.
Markets We Serve
HVAC Excellence
Why Choose Us?
Trusted Advisors
Our factory training keeps us updated on industry innovations, allowing us to provide cutting-edge HVAC solutions. Our commitment to excellence ensures clients receive top-tier service and support in their projects.
Solution Providers
Our in-depth industry knowledge and unwavering commitment to excellence empower us to navigate complex issues seamlessly. Whether it’s optimizing system efficiency, addressing unique project specifications, or overcoming unforeseen hurdles, we are dedicated to delivering tailored solutions that surpass expectations.
Premier Equipment
We have strong relationships with reputable equipment manufacturers and a long-standing history of projects with well-respected building owners, engineers, general contractors, and the like.
Get to Know Us
In February of 2000, our founders came together with the goal of making commercial HVAC a smoother, more comfortable process for reputable building owners, architects, engineers, general contractors, and more. Learn more about us!
Read Our Latest Blog Posts
Thermosystems, LLC. Expands into Northern Indiana
as Exclusive Factory Sales Rep for Daikin Thermosystems, LLC. is excited to announce its expansion into Northern Indiana as the exclusive factory sales representative for industry-leading brand Daikin Applied Americas and Daikin Comfort. This marks a significant milestone in the
Enhancing HVAC: Welcome Indeeco!
Register for I-Heat I-Heat makes it easy to select all your heating products, with no downloads required and regularly updated, relevant information. It also produces accurate technical documents pertaining to your specific selections. Utilizing I-Heat saves you time and gives