724.873.8700Our Story
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1979
Allegheny MIllwork Incorporated was founded. We purchased for our first workspace, the former Sons of Lithuania Social Club on the North Side of Pittsburgh. Six employees worked together to manufacture mouldings, cabinetry and sell lumber.
1987
PA Department of Transportation purchased the Allegheny Millwork Incorporated facility to create an interchange. We moved to Pittsburgh’s historic Southside. For 11 years, it housed both our Millwork and Lumberyard operations.
1998
A.S.S.T. was formed to meet the needs of the industry, specializing in complex fabrication of engineered materials.
1999-2000
Allegheny Millwork constructed a new, spacious facility in Lawrence, PA to be our headquarters.
2005
Office opened in Crofton, Maryland.
2012
Bradenton, FL office opened.
2014
Allegheny Commercial Doors was established to provide an added service to our customer base.
2016
Nashville, TN office opened.
2016
Allegheny Construction Specialties was established to provide full service Division 10 packages.
2017
Allegheny MIllwork opened an office in South Florida.
2018
An office in Greene, NY was established.
Today
Today, Allegheny Diversified Holdings has grown to five companies, eight locations, and over 300 employees.
