Plumber in Hayward, WI.
Carl J Trettin appears in Wisconsin license records as a plumber based in Hayward, WI. The record lists a Journeyman Plumber license (#220569) with status “Active”. It is listed as valid through 2027-03-31.
Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.
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Carl J Trettin is a plumber based in Hayward, Wisconsin. Their license classification is Journeyman Plumber.
Yes. Carl J Trettin holds Wisconsin licensing authority license #220569 (status: Active). Verify the current status on Wisconsin licensing authority before hiring.
Carl J Trettin is based in Hayward, WI 548436378.
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Not yet. This listing was created from public Wisconsin license records but hasn't been claimed by the owner. The license info above is from official records, but the business hasn't confirmed its services, hours, or current availability with us yet.
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