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Harry Hartigan 1985


Hartigan Refrigeration was founded in 1976 by a young service technician named Harry Hartigan, who still serves as MSC's president today. As the company grew, our early focus on gasoline vapor recovery refrigeration systems quickly expanded to include process cooling and HVAC.


In 1978, our name was changed to Mechanical Service Corporation to reflect Harry's vision for the company's future as an HVAC service specialist.


Vice President Tim Hartigan joined MSC in 1997 and worked alongside his father, Harry, before his untimely passing in 2019. Tim played an instrumental part in ushering MSC into the 21st century and cementing our status as the Northeast Region's go-to experts in complex HVAC, process cooling, and building automation

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