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With headquarters in Warrendale, PA., we operate from 21 strategically located business units throughout the United States including Western Pennsylvania (Pittsburgh), Eastern Pennsylvania (Philadelphia), New Jersey, Boston, DC, Ohio (Columbus and Athens, OH), Michigan (Pontiac, Detroit, Grand Rapids andLansing, MI), Tennessee (Nashville and Chattanooga), North Carolina (Greensboro), and Minnesota (Twin Cities).

Harper, a Limbach Holdings, Inc. company, operates throughout Florida with offices in Tampa, Orlando, and West Palm Beach.