2014 marks American Combustion Service, Inc.’s 30th Anniversary. We’d like to thank you for your continued support. Our success has everything to do with you.

We’ve spent 30 years doing what we love, providing exceptional service and keeping you comfortable. Thank you for trusting us with your heating-and-cooling needs. We look forward to the years to come as we continue to learn more about the latest technologies to save you money and serve you even better.

Experience counts, and you can count on us. Our friendly and attentive technicians and staff are ready to help with installations, piping, tune-ups, refractory repairs, maintenance, and more. Give us a call.


Frank Lacny, President

American Combustion Service, Inc.

Frank Lacny
Frank founded American Combustion Service, Inc. & ACSI Mechanical in 1984. His consulting and specialized service capabilities for working on any type of fuel burner and/or fuel has earned ACSI a reputation as “burner specialists” in the community. Frank has trained and consulted for many groups and companies in Chicago and the Chicago Metropolitan Area. His areas of expertise include burner start-up work, unusual boiler room problem-solving situations, and general backup service support.