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Introducing Diversified General Contractors Inc

Green Mechanical HVAC Contractor Helping Companies Reach ESG Goals

Hello everyone, We are a well-renowned mechanical HVAC Contractor from Lansing, Il. Since 2000, we have been providing our clients with top-of-the-line mechanical contracting services that cater to their specific needs and requirements. From small projects to larger and more complex jobs, we have experience dealing with all sorts of parameters.  Contact us today to find out how we can help.

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Why Choose Us?

Sustainability, Quality Work, and Affordability.


Two Decades of Experience

Diversified General Contractors, Inc. has been serving as a leading licensed HVAC Contractor since 2000. As fully-certified professionals, we can tackle anything from the most complex and large-scale construction projects to smaller jobs. We are fueled by our commitment to excellence and go the extra mile to make sure our clients are completely satisfied with our work.

Electric Car Charger


Every service we offer is geared toward sustainability and energy efficiency. As society shifts in that direction, our most basic human practices must adjust. Our company offers energy-efficient solutions for heating, cooling, and transportation, allowing you to remain compliant with the energy regulations of today and the future. Ultimately, saving energy saves you money, and minimizes your carbon footprint.


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Green HVAC


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Geothermal Integration

Ice Rinks

Robert Bishop, our ice rink project director is a member of our team who brings over 35 years worth of experience in design/building of refrigerated systems for ice rinks. Robert's extensive background includes ammonia, CO2, and halocarbon refrigeration systems, installation of fused ice rink piping, dasher boards, ice rink flooring, technical service, energy management, and consultation.

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Vehicle Charging Stations

EV Charging Stations

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Sunset on Solar Panels

PV Solar System Design

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Solar Panel Farm8

Utility Solar Design

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Contact Us

(708) 637-1129

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