Electrician in Thiensville, WI.
John R Grau appears in Wisconsin license records as an electrician based in Thiensville, WI. The record lists a Master Electrician license (#249414) with status “Active”. It is listed as valid through 2027-06-30.
Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.
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John R Grau is an electrician based in Thiensville, Wisconsin. Their license classification is Master Electrician.
Yes. John R Grau holds Wisconsin licensing authority license #249414 (status: Active). Verify the current status on Wisconsin licensing authority before hiring.
John R Grau is based in Thiensville, WI 53092.
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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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