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Plain-language guides for hiring a plumber in Minnesota. Each one cites the sources it was written from.
Who may do plumbing work in MinnesotaWhat the state law and DLI say about contractor licenses and the master plumber in charge
Replacing a water heater in MinnesotaWho may do it, and what three Minnesota cities say about permits
How to check a plumbing contractor's licenseUse DLI's lookup, no account needed