Plumbing contractors in
Williston, North Dakota.
A public directory of licensed plumbing contractors serving greater Williston. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
Common Job Costs
Licensing Requirements
Licensing Requirements
North Dakota requires plumber contractors to hold a Class A or Class B plumbing contractor license through the State Plumbing Board. Must pass written examination covering plumbing code, business law, and technical knowledge. Requires 4 years experience or equivalent apprenticeship. License renewal every 2 years with continuing education requirements.
Permit Requirements
City of Williston requires plumbing permits for new installations, replacements, and repairs over $500. Permit fees range from $25-$150 depending on scope. Gas line work requires separate gas permit.
Inspection Schedule
Rough-in inspection before covering work, final inspection upon completion. City of Williston typically schedules within 24-48 hours of request during business days.
Insurance Minimums
North Dakota requires minimum $300,000 general liability insurance and $50,000 property damage coverage for licensed plumbing contractors. Workers compensation required if employing others.
How to Get Licensed
Meet Experience Requirements
Complete 4 years of plumbing experience or approved apprenticeship program. Document your experience with employer verification forms and detailed work history.
Submit Application
File application with North Dakota State Plumbing Board including experience documentation, fees ($200-300), and required forms. Applications available on state website.
Schedule and Pass Exam
Take written examination covering plumbing code, business law, and technical knowledge. Exam administered at approved testing centers statewide.
Provide Insurance Proof
Submit certificates of insurance showing minimum $300,000 general liability and $50,000 property damage coverage from approved carriers.
Receive License
Upon passing exam and meeting all requirements, receive your Class A or B plumbing contractor license valid for 2 years.
Maintain License
Renew every 2 years with continuing education requirements and updated insurance certificates. Submit renewal application 30 days before expiration.
About This Market
Williston's plumber market runs hot due to oil field activity and harsh winters that stress aging infrastructure. You've got steady residential service calls, new construction from population growth, and industrial work supporting energy operations. Competition is moderate with around 15-20 active shops, but demand consistently outpaces supply. Costs run 15-20% above state average due to wage competition from oil field jobs and material transport costs. Winter drives the big money - frozen pipes, failed water heaters, and emergency calls that can hit $200+ per hour. Most contractors here focus on service and repair rather than new construction, though commercial opportunities exist with ongoing development projects.
To work this market, you need your North Dakota plumbing contractor license - no shortcuts, they enforce it. City permit process is straightforward but required for anything substantial. Stock up before winter hits because supply runs get sketchy when roads ice over. Your biggest challenge isn't finding work, it's finding qualified help - oil field wages pull techs away constantly. Plan your routes efficiently because Williston sprawls and drive time eats profit. Emergency service is your bread and butter here, especially November through February when temperatures hit -20°F and pipes freeze solid. Build relationships with property managers and maintenance companies early - they'll keep you busy year-round.
- Median hourly wageBureau of Labor Statistics (BLS) - $31.62/hr ($65,770/yr)
- Licensed establishmentsU.S. Census Bureau - 324 licensed establishments in ND
- Licensing requirementsNorth Dakota State Plumbing Board
- Permit requirementsCity of Williston Building Department
- Insurance minimumsNorth Dakota Insurance Department and State Plumbing Board
Frequently Asked Questions
What does it cost to hire a plumber in Williston, ND?
Service calls typically start at $150-200, with hourly rates ranging $80-120. Common jobs like drain cleaning run $150-400, while water heater installation costs $1200-3500. Emergency winter calls can reach $150-200 per hour due to harsh conditions and high demand.
Do I need a license to work as a plumber contractor in North Dakota?
Yes, North Dakota requires plumbing contractors to hold either a Class A or Class B contractor license through the State Plumbing Board. You must pass a written exam and demonstrate 4 years of experience or complete an approved apprenticeship program.
How long does it take to get a plumbing contractor license in North Dakota?
The licensing process typically takes 6-8 weeks after submitting your application, assuming you meet the 4-year experience requirement. This includes application review, exam scheduling, and license issuance by the State Plumbing Board.
When is peak season for plumbers in Williston?
October through March is peak season due to freezing temperatures averaging -20°F in winter. Frozen pipes, failed water heaters, and heating system issues create high demand for emergency services during these months.
What insurance do plumbing contractors need in North Dakota?
North Dakota requires minimum $300,000 general liability and $50,000 property damage coverage for licensed plumbing contractors. Workers compensation insurance is mandatory if you employ others, per state labor department requirements.
Plumbing contractors in Williston
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