About Us

Since 1985 we have operated with one basic philosophy, to provide all of our clients with the highest quality of performance and workmanship to ensure complete client satisfaction. Based in Melrose Park, Illinois, Demco Mechanical Services is a full service Heating, Ventilation and Air Conditioning company also specializing in Division 10, 11 and 14 specialties - such as trash and linen chutes, trash compactors, tenant storage lockers, woven wire partitions, folding gates and custom sheet metal fabrications.

We offer a wide variety of mechanical services with design capabilites and cost effective pricing for every HVAC and Architectural Specialties installation. Demco Mechanical Services performs top quality reputable work in the following areas:

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  • Design Build Applications
  • "GREEN" Engineering
  • Commercial, Industrial, institutional
  • Infrastructure Modernization
  • Standard and Specialty Metal Fabricaton
  • Plan and Specification Contracting