About Our Shop

David Erzinger Mechanical Service Co. has been serving the Heating and Air Conditioning needs of the greater Will County Illinois community Since 2000.

Dave has a Bachelors degree in applied science and over 20 years experience as a commercial and residential HVAC contractor, so you know you can trust David Erzinger Mechanical Service to solve your HVAC problems at a reasonable price. We take great pride in providing quality and cost effective solutions to to your heating and Air Conditioning problems. Whether your equipment needs cleaning and preventative maintenance, repair, or replacement, you can be sure David Erzinger Mechanical Service has the expertise to find the best solution to satisfy your needs.

Call today for a free quote on your next project.

Heating and Air Conditioning Equipment Repair  

We service, repair, all brands of heating, air conditioning, and air cleaning and purifying equipment


We service, repair and install steam and hot water boilers. repair and install heating coils and associated piping,


Indoor Air Quality Products

Electronic Air Cleaners


Extended media Filters

UV and Ion air purifiers.

Heating and Air Conditioning Installation

Carrier residential and commercial equipment

Modine Unit (garage) heaters

Weil McLain boilers