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  1. A 24-hour team of qualified and experienced personnel to give you help when you need it most.
  2. Technicians that are continuously trained in-house and go through various training seminars to give you, our client, the best value for your money!
  3. Prompt, courteous service from a group of individuals who are dedicated to the needs of each one of our clients. Starting from our Dispatcher and Office Personnel, to our Service Technicians, and to our Piping and Refractory Crews.
  4. We will go the extra step to give our valued clients something extra in the way of quality service, to ensure long-lasting business relationships.
  5. By letting us service your needs, as YOU deserve to be serviced! You are getting the best when you call us.
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.

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