Millstadt, Illinois  ·  Established Mid-1860s  ·  101 E. White St.
George Weis Company
Plaster  ·  Drywall  ·  EIFS  ·  Acoustical Ceilings  ·  Metal Framing  ·  Exterior Claddings  ·  Stucco
EST. 1860s Six Generations
Family Leadership · Timeline
1st Generation
Peter Weis
Peter Weis
Founder
Born Nassau, Germany. Settled in Centreville (Millstadt) early 1860s. Civil War veteran, Co. E, 20th Infantry. Sons William & Edward joined the trade. Died Nov. 3, 1909.
3rd Generation
Alfred C. Weis
Alfred C. Weis
Owner / Operator
William's son. Took over upon William's death in 1935. Based at 105 Lucinda Ave., Belleville. Focused on residential construction.
3rd Generation
George Weis
George Weis
Owner / Operator
Alfred's brother & company namesake. Named it "George Weis Plastering Contractor" 1945. Incorporated as George Weis Company 1961. Purchased 101 E. White St. 1963. Led commercial pivot.
5th Generation
Mark Weis
Michael Weis
Mark Weis
President Michael Weis
Vice President
Mark & Michael Weis
President & Vice-President
Robert's sons. Continued commercial expansion across Metro St. Louis. Michael retired 2017  ·  Mark retired 2021
~1862
1906
1935
1945
~mid-1950s
Mark & Michael joined 1976
1992
2022
2nd Generation
William H. Weis
William H. Weis
Owner / Operator
Peter's eldest son. Took over after Peter's 1906 stroke. Based at 302 W. Madison, Millstadt. Led the company until his death in 1935.
4th Generation
Robert Weis
Robert Weis
Owner / Operator
George's son. Joined his father in 1946. Added drywall, ACT, steel studs, EIFS & spray-fireproofing. Expanded to St. Louis & St. Louis County. Also led Wall & Ceiling Systems Supply, Inc. Retired 1992.
6th Generation · Current
Ryan Weis
Frank Simek
Ryan Weis
President Frank Simek
Vice President
Ryan Weis & Frank Simek
President & Vice-President
Mark's son Ryan joined Jan. 2010 as PM/Estimator, became President Jan. 2022. Frank Simek (Ryan's cousin, Shirleen's son) joined Feb. 2014, became VP Jan. 2022 — 6th generation of family leadership.
◆   Company Headquarters · 101 E. White Street, Millstadt, Illinois
In 1963, George Weis Company purchased the Millstadt Lumber Company building at 101 E. White Street and renovated it into the present-day office and warehouse. The company had previously operated a warehouse at 13 E. White Street before acquiring this permanent home — headquarters for over 60 years.
1963
Purchased &
Renovated
Crew at work ~1860
Weis crew at work, ~1860s, Millstadt, IL