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The Heat and Frost Insulators are the original green energy specialists—conserving energy to our customers in Northeast Illinois and Northwest Indiana since 1899.

Learn More About Mechanical Insulation Evaluations and Energy Audits

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Insulation around a building’s heating and cooling system is a vital resource that protects a facility from energy loss and physical damage. It saves energy immediately and pays for itself fast. It’s a game changer. For more than 100 years, the energy conservation specialists of Heat & Frost Insulators have worked on the front line in building a safer, healthier, greener, and more efficient world. We serve Chicagoland, Peoria, and Northwest Indiana.

Local 17


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Union Wellness Center

Trained vs. Untrained Workers: You be the Judge

Our organization has reached out to the community to provide a better understanding on just how important Mechanical Insulation is to businesses, churches, and schools. Local 17 has reached out to building inspectors, engineering firms, researchers, and political leaders to express our concerns regarding poorly insulated mechanical systems. Our members have submitted photos of their finished…

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Local 17 Projects and Projections

Local 17 Projects and Projections  

As we come out of the pandemic, Local 17 has some large projects on which to report – both that have been or will be launched… Some of these jobs have been completed on time and under budget, despite the many challenges in the past year.  These projects are due to the efforts of our well-trained men and women.

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Mechanical Insulation: Conduit towards Zero Carbon Emissions

The importance of reducing the carbon footprint has become a priority for the people of Illinois. The need to reduce the use of fossil fuels is an ever-increasing reality.  This is an achievable goal we should strive for, not just for the citizens of Illinois today, but for generations going forward.  Solar and wind are viable sources that can make these goals possible, however, what can we do presently to achieve the goal of…

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