for three generations

Oasen Plumbing Inc was founded in 1946 by Arthur Oasen. Arthur taught his son, John, the trade, who passed his knowledge down to Jim and Ken, who manage the business today.

Oasen Plumbing Inc is still family owned and operated, so we'll make sure the job is done right the first time.


Jim Oasen

Certified Master Plumber

Jim has been a certified master plumber since 1992. When he is not managing the business, Jim enjoys weekend camping trips and supporting the Green Bay Packers and Wisconsin Badgers.

Louise Oasen

Bookkeeper | Secretary

Louise is a UW-Madison retiree. When she is not managing the books for Oasen Plumbing, she enjoys playing the trombone in the New Horizons Band of Madison and cooking meals for her family.

Ken Oasen

Certified Master Plumber

Ken has been a certified master plumber since 1995. Outside of work Ken enjoys playing hockey, fishing, and going to concerts to show support for local artists and bands.