Grunau Company History


1920:

Paul J. Grunau establishes Grunau Company for plumbing and repair services

Grunau History 1920

1923:

Grunau Company adds heating system installation to offered services

Grunau History 1923

1929:

Grunau Company adds fire protection systems to its capabilities

Grunau History 1929

1929:

Paul E. Grunau joins Grunau Company to help manage the business

Grunau History 1929

1960:

Grunau Company adds sheet metal services

Grunau History 1960

1962:

Gary Grunau joins Grunau Company as 3rd generation of family leadership

Grunau History 1962

1967:

Grunau Company expands fire protection services to Indianapolis, IN

Grunau History 1967

1977:

Grunau Company adds structural and specialty metals to its capabilities

Grunau History 1977

1980:

Grunau Company expands fire protection services to Pittsburgh, PA

Grunau History 1980

1982:

Grunau Company expands fire protection services to Orlando, FL

Grunau History 1982

1990:

Paul W. Grunau joins Grunau Company marking the 4th generation of family leadership

1994:

Grunau Company expands fire protection services to Youngstown, OH

Grunau History 1994

1999:

Grunau Company brands its specialty metals division as Grunau Metals

Grunau History 1999

2003:

Grunau embraces the Lean Construction culture

Grunau History 2003

2005:

Grunau is first Wisconsin mechanical contractor to have LEED Accredited Professionals on staff

Grunau History 2005

2006:

Grunau Company is acquired by APi Group, a family of specialty contractors

Grunau History 2006

2009:

Lawrence E. Loomis becomes President of Grunau Company

Grunau History 2009

2015:

Bill F. Ball named President to lead Grunau Company into the future as Grunau marks its 95th year of being in business

Grunau History 2015