Plumbing contractors in
Milwaukee, Wisconsin.
A public directory of plumbing contractor businesses serving greater Milwaukee. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
Plumbing jobs in Milwaukee
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Common Job Costs
Licensing Requirements
Licensing Requirements
Wisconsin requires Master Plumber license through Department of Safety and Professional Services. Must pass state exam, have 4 years experience as journeyman, complete 8 hours continuing education every 2 years. License renewal every 2 years with $75 fee.
Permit Requirements
Milwaukee requires plumbing permits for new installations, major repairs, water heater replacement. Permit fees range $50-200 depending on scope. Submit applications through Milwaukee Development Center.
Inspection Schedule
Rough-in inspection before covering work, final inspection after completion. Schedule 48 hours in advance through Milwaukee Building Inspection Division.
Insurance Minimums
Wisconsin requires general liability minimum $300,000 per occurrence, $600,000 aggregate. Workers compensation required if employees. Bonding requirements vary by municipality.
Compliance research unavailable
Source status: unavailable · 7/14/2026
Detailed instructions are withheld because the source is not available for verification.
Local market snapshot
Source: DoorBase, aggregated public ZIP-level data. Updated 8/17/2026.
How to Get Licensed
Complete apprenticeship
Complete 4-year plumbing apprenticeship program or equivalent 8,000 hours on-the-job training under licensed Master Plumber supervision
Pass journeyman exam
Take and pass Wisconsin journeyman plumber examination administered by state testing vendor
Gain experience
Work minimum 4 years as licensed journeyman plumber under Master Plumber supervision
Submit application
Complete Master Plumber license application with Wisconsin Department of Safety and Professional Services including experience verification
Pass master exam
Take and pass Wisconsin Master Plumber examination covering codes, regulations, and business practices
Pay fees
Submit $75 licensing fee and any applicable exam fees to complete license issuance
Maintain license
Complete 8 hours continuing education every 2 years and renew license with $75 fee
About This Market
Milwaukee's plumber market serves 590,000 residents across aging housing stock and industrial facilities. Winter freeze-thaw cycles create steady emergency work, while old cast iron and galvanized systems drive replacement jobs. Competition is moderate with established family operations dominating residential work. Labor costs run high due to union presence and skilled worker shortage - median wage hits $40.73/hour. Material costs fluctuate with copper and PVC pricing, but markup stays consistent at 100-150% over wholesale.
Get your Master Plumber license first - Wisconsin doesn't mess around with unlicensed work. Milwaukee inspectors know their code and expect clean installations. Winter emergency calls pay premium rates but summer renovation projects provide steady income. Build relationships with general contractors early - they control the big rehab jobs in Riverwest and Bay View. Keep emergency truck stocked for frozen pipe season and expect 60% of annual emergency revenue between December and March.
- Median hourly wageBureau of Labor Statistics Occupational Employment Statistics
- Licensed establishments countU.S. Census Bureau County Business Patterns
- Licensing requirementsWisconsin Department of Safety and Professional Services
- Permit requirementsMilwaukee Development Center Building Permits Division
- Insurance minimumsWisconsin Department of Agriculture Trade and Consumer Protection
Frequently Asked Questions
What does a plumber license cost in Wisconsin?
Wisconsin Master Plumber license costs $75 for initial application plus $75 renewal every 2 years. Add exam fees and continuing education costs. Source: Wisconsin Department of Safety and Professional Services.
How much do plumbers make in Milwaukee?
Milwaukee plumbers earn median wage of $40.73 per hour or $84,718 annually, above national average due to union presence and skilled labor shortage. Source: Bureau of Labor Statistics.
Do I need permits for water heater replacement in Milwaukee?
Yes, Milwaukee requires plumbing permits for water heater replacement. Permits cost $50-200 depending on scope and require inspection. Source: Milwaukee Development Center.
How many licensed plumbers work in Wisconsin?
Approximately 1,922 licensed plumbing establishments operate in Wisconsin, serving both residential and commercial markets. Source: U.S. Census Bureau County Business Patterns.
When is plumbing busiest in Milwaukee?
Peak season runs November through February due to frozen pipes, heating system failures, and emergency calls from harsh Wisconsin winters driving 60% of emergency revenue.
Plumbing contractors in Milwaukee
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