Plumbing Contractors in Oshkosh, Wisconsin
Licensed Establishments
1,922
U.S. Census Bureau
Peak Season
October through March - heating system repairs and frozen pipe issues dominate winter months
Estimate
Avg. Response Time
24-48 hours for quotes, same-day for emergency calls
Estimate
Common Job Costs
| Service | Cost Range |
|---|---|
| Drain cleaning | $150 – $350 |
| Water heater installation | $1,200 – $3,500 |
| Toilet repair/replacement | $200 – $800 |
| Kitchen sink installation | $400 – $1,200 |
| Main sewer line repair | $2,500 – $8,000 |
| Faucet installation | $180 – $450 |
Licensing Requirements
Licensing Requirements
Wisconsin requires Master Plumber license through DSPS. Must complete 4-year apprenticeship or equivalent, pass state exam, and maintain continuing education. Journeyman license required before Master level. Renewal every 2 years with 8 hours continuing education.
Permit Requirements
City of Oshkosh requires permits for water heater replacement, fixture installations, and any new plumbing. Permit fees range $50-200 depending on scope. Submit applications to Building Inspection Department.
Inspection Schedule
Rough-in inspection before covering work, final inspection upon completion. Schedule 24 hours in advance with City of Oshkosh Building Department. Additional inspections required for backflow prevention devices.
Insurance Minimums
General liability minimum $300,000 recommended, workers compensation required for employees. Many municipalities require $500,000 liability for permit work.
How to Get Licensed
- 1
Complete apprenticeship
Complete 4-year plumbing apprenticeship program or equivalent combination of education and experience totaling 8,000 hours of work and 576 hours of related instruction.
- 2
Obtain journeyman license
Apply for Journeyman Plumber license through Wisconsin DSPS after completing apprenticeship. Pass journeyman examination and pay required fees.
- 3
Gain required experience
Work as licensed journeyman for minimum required period while gaining additional experience in plumbing installation, repair, and code compliance.
- 4
Apply for master license
Submit Master Plumber application to Wisconsin DSPS including proof of experience, education, and examination requirements. Pay application and license fees.
- 5
Pass master examination
Successfully complete Wisconsin Master Plumber examination covering plumbing codes, business practices, and advanced plumbing systems.
- 6
Maintain license
Renew license every 2 years with Wisconsin DSPS, complete 8 hours continuing education, and pay renewal fees to maintain active status.
About This Market
Oshkosh plumbing market serves 66,000 residents with steady demand from older housing stock and commercial properties along the Fox River. Competition is moderate with established local contractors dominating residential work. Winter freeze-ups and aging infrastructure drive emergency calls, while bathroom renovations and water heater replacements provide steady income. Costs run 10-15% below Milwaukee rates but labor shortages are pushing prices up.
Get your Master Plumber license sorted first - Wisconsin doesn't mess around with unlicensed work. City permit process is straightforward but they inspect everything. Winter emergency calls pay premium rates but you'll work brutal hours. Build relationships with local supply houses and HVAC contractors for referrals. Insurance requirements vary by job size, so know what you need before bidding commercial work.
Data Sources:
Frequently Asked Questions
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Contractors in Oshkosh
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