Clients come to ACSI for solutions for their piping, all types of boilers, equipment installations, emergency pipe repairs and combustion systems needs. Our experience and large parts inventory make it easy to mobilize and help you resolve unexpected downtime or leaks. We supply in-house maintenance staff trained to keep your systems running smoothly and, we provide 24-hour emergency piping and mechanical repairs. Whether it's new, refurbished or used burners, cooling towers, high-temperature furnaces, kilns or pumps, ACSI has years of consulting and hands-on experience to manage, install and complete your full-service installation.

American Combustion Service, Inc. & ACSI Mechanical was founded by Frank M. Lacny in December 1984. The Company has always been based in the southwest suburb of beautiful Mokena, Illinois. In 2009, the company moved to its current location at 19325 S. Schoolhouse Road, Mokena, Illinois. The spacious building is home to corporate offices, stock room and shop for any "in house" fabrication and repairs. Located off Interstate 80 and Route 45 makes it convenient to travel to service clients up into Wisconsin, Iowa, Indiana and southern Illinois.

With more than 30 years of experience in Industrial and commercial HVAC, Boiler and Burner Repair, ACSI has become the most trusted name in Illinois's industrial and commercial market. When your equipment has a problem, waiting is not an option, you need immediate repairs. ACSI has a team of dedicated professionals available to you 24 hours a day, 7 days a week. Our team of employees and skilled technicians understand the pressures you face when equipment such as burners, boilers, high-temperature furnaces, kilns or air conditioning units malfunction.

ACSI has consulted and worked with hospitals, manufacturers, high rise residential, refineries, and heavy industrial industries to name a few. Regardless of industry, we know the critical nature of getting the right boiler, burner, high-temperature furnace, kiln, as well as heating and air conditioning units, to meet your budget. Regardless of your choice to purchase new or used, you want your equipment to work like new and stay working with confidence. Purchasing new equipment such as boilers, burners, high-temperature furnace, kilns or other heating and air conditioning units can be too great of a financial investment for an owner or manager.

Studies show that if you find a potential problem and fix it before it becomes an issue, your cost savings become three times that of the initial investment. ACSI offers the most comprehensive burner analysis of fuel burning equipment in the industry. The ACSI Preventative Maintenance Program includes a multi-point inspection and thorough cleaning of five major combustion systems: boilers, burners, air conditioners, chillers and controls. These systems get used every minute of every day causing stress from fluctuating on-off cycles, thermal shock conditions, and energy demands.

We hear this a lot from new customers. That's because we honor what is right for our customers above all else. We evaluate the life of combustion system components, analyze capacity, and future usage expectations. We look at a system's maintenance expectations and the potential for modifications. This approach keeps us customer-centric and has earned us high marks in the areas of experience, integrity and creative thinking. Chicago's historic Congress Plaza Hotel required new boilers. Another consulting company came in and suggested they remove the existing three large boilers and replace them with nine smaller boilers.

ACSI provides specialized maintenance and installation services to help your organization reduce risk, save on energy costs, and maintain facilities with confidence. Industrial and commercial customers nationwide in healthcare, education, manufacturing, public service, and hospitality - among others - rely on ACSI's specialized expertise in boiler/burner services and industrial HVAC services to keep their facilities running smoothly. At ACSI, we provide customers with an expert team of skilled technicians, preventative maintenance programs, customer education, and around-the-clock emergency and on-call services that work 24 hours a day, 7 days a week, 365 days a year.

Whether it's a new or refurbished/used burner, cooling tower, high-temperature furnaces, kilns or pumps, ACSI has years of consulting and hands-on experience to manage, install and complete a full-service installation. Installations of reconditioned or used burners, boilers, cooling towers, high-temperature furnaces, kilns or pumps, can be problematic especially with used units. Our vast experience gives us the advantage of making your unit operate as originally designed. ACSI has a team of people who know what it takes to keep your investment in top working order.

What's new?

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