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Licensed master plumbers in Zumbrota, MN

6 individuals with a Minnesota DLI master or restricted master plumber license list Zumbrota as their city (DLI file downloaded November 4, 2026).

Read this before you call. These are individuals, not businesses. Minnesota law says no one may perform or offer to perform plumbing work, with or without pay, without a plumbing contractor license (Minn. Stat. 326B.46), and a contractor license is a separate license from a master plumber license. Many master plumbers work for the contractors listed in this directory. Ask whether the person holds a plumbing contractor license or which licensed contractor they work for, then check it with DLI. See who may do plumbing work.

David L Frederixon
Master plumber · license PM036881 · expires 12/31/2026 · Zumbrota, MN
(507) 732-7675
Mark A Hinrichs
Restricted master plumber · license MR069029 · expires 12/31/2026 · Zumbrota, MN
(507) 732-7739
James M Harbaugh JR
Master plumber · license PM064004 · expires 12/31/2026 · Zumbrota, MN
(507) 208-0014
Riley S Knoepke
Master plumber · license PM807136 · expires 12/31/2026 · Zumbrota, MN
(507) 319-4122
Jeffrey A Marquardt
Master plumber · license PM067160 · expires 12/31/2026 · Zumbrota, MN
(507) 215-1987
Steven G Paulson
Restricted master plumber · license MR061916 · expires 12/31/2026 · Zumbrota, MN
(507) 732-5170

Individuals with an issued license and a phone number in the DLI file. Most master plumber licenses in the file expire December 31, 2026, so a license may show as renewed or lapsed after that date; check DLI's lookup. Street addresses are not published. To be removed, use the removal form.