6 of Milwaukee County's 101 plumbers and heating and cooling contractors are listed for sewer line work.
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A contractor is listed for a service when its owner picked the service, when its Google Business Profile category names it, or when its business name does. Ranked as on the county page: verified owner, then a Google rating of 4.0 or higher, then review count, then fleet size. How ranking works
Ranges are national; ask contractors near you.
Figures checked September 2026.
Wisconsin licenses master, restricted master and journeyman plumbers.1, 2, 3 HVAC Contractor and HVAC Qualifier credentials in Wisconsin come from the Department of Safety and Professional Services.4, 5 Permits for replacing equipment in Wisconsin are local, since the state's dwelling code doesn't cover repairs to plumbing, heating or air conditioning.6
