Plumbing contractors in
Boise, Idaho.
A public directory of plumbing contractor businesses serving greater Boise. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
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Common Job Costs
Licensing Requirements
Licensing Requirements
Idaho requires three license tiers: (1) Apprentice - requires 4-year indentured apprenticeship under licensed journeyman, minimum 8,000 documented hours, passing exam; (2) Journeyman - minimum 8,000 hours or equivalent experience, pass written exam covering code and safety, $35-50 exam fee; (3) Master - minimum 4 additional years experience post-journeyman, pass master exam, business law exam. All licenses renew biennially (every 2 years) with continuing education requirement of 16 hours per two-year cycle. License held through Idaho Department of Labor, Apprenticeship and Training Division.
Permit Requirements
City of Boise requires plumbing permits for any new installation, replacement, or repair of water supply, drainage, or gas piping systems. Permits issued by Boise City Development Services. Residential repairs typically require Standard or Emergency permit; new construction requires Full permit. Permit fees range $25-$150 based on scope. Final inspection required before use.
Inspection Schedule
Boise Development Services conducts inspections at rough-in stage (before walls closed), final inspection after system completion. Inspector verifies code compliance, proper sizing, venting, backflow prevention. Inspection requested through permit system; turnaround typically 2-5 business days. Failed inspections require corrections and re-inspection.
Insurance Minimums
Idaho does not mandate specific insurance minimums by state law for plumbers, but Boise municipal code strongly recommends General Liability minimum $1,000,000 and Workers Compensation as required by law for any employee. Most commercial work requires $2,000,000 GL coverage. Bonding may be required for public projects.
Compliance research unavailable
Source status: unavailable · 7/17/2026
Detailed instructions are withheld because the source is not available for verification.
Local market snapshot
Source: DoorBase, aggregated public ZIP-level data. Updated 7/17/2026.
How to Get Licensed
Step 1: Start Apprenticeship
Contact Idaho Department of Labor, Apprenticeship and Training Division, or a licensed plumbing contractor willing to sponsor you. Register for a 4-year registered apprenticeship program. Agreement must specify minimum 8,000 documented on-the-job hours under journeyman supervision plus classroom instruction. Hours must be logged and verified through the apprenticeship office.
Step 2: Accumulate 8,000 Hours
Work under direct supervision of a licensed journeyman plumber. Document all hours with employer sign-off. Hours must cover diverse plumbing work: installation, repair, maintenance, code compliance. Classroom component typically 144 hours per year over 4 years. Track hours through your apprenticeship sponsor; Idaho Department of Labor maintains records.
Step 3: Complete Classroom Requirements
Attend approved plumbing apprenticeship classroom instruction (typically 144 hours annually). Content covers Idaho plumbing code, safety, blueprints, math, materials, venting, drainage, water supply systems. Classroom may be delivered by community colleges or approved training providers. Maintain attendance and passing grades.
Step 4: Apply for Journeyman Exam
After completing 8,000 hours and classroom, submit exam application to Idaho Department of Labor. Include proof of hours, classroom completion, and exam fee ($35-50). Application review takes 2-3 weeks. Exam eligibility confirmed in writing before scheduling test date.
Step 5: Pass Journeyman Plumber Exam
Sit for written exam covering Idaho plumbing code, safety standards, installation practices, materials, troubleshooting. Test administered by Idaho Department of Labor or contracted testing center. Passing score typically 70-75%. Results issued within 2 weeks. Upon passing, apply for journeyman license certificate through Department of Labor.
Step 6: Receive Journeyman License
Idaho Department of Labor issues journeyman plumber license upon passing exam and final documentation review. License is valid for 2 years from issue date. You can now work independently, bid jobs, and supervise apprentices. License certificate must be displayed at your business location.
Step 7: Maintain Biennial Renewal
Every 2 years before license expiration, submit renewal application with proof of 16 continuing education hours completed during the cycle. CE must be from approved providers (technical schools, manufacturers, code seminars). Renewal fee typically $50-75. Submit 30-60 days before expiration to avoid lapse. Renew online through Idaho Department of Labor portal.
Step 8: Optional—Apply for Master License
After 4+ additional years of journeyman experience, apply for master plumber license. Submit application, proof of experience, exam fees. Pass written exam on advanced code, business law, specialty systems. Master license allows business ownership, bonding for public projects, expanded supervision authority. Renewal follows same biennial schedule as journeyman.
About This Market
Boise's plumbing market runs steady year-round with distinct peaks. You've got residential service work—replacements, repairs, new faucets—driving consistent demand. New construction is heavy May through August; that's where the bigger money sits, but it's also where your competition is sharpest. Water heater replacements and drain cleaning are bread-and-butter calls. Older housing stock in central Boise means copper and cast iron pipe work; newer subdivisions bring different challenges. Costs run higher here than rural Idaho but stay below national metro averages. Material costs are standard, but labor commands $28/hour median wage statewide—your dispatch and efficiency determine your margin. Competition is real: roughly 825 licensed shops across Idaho means Boise's got maybe 150-200 active contractors, so reputation and response time matter.
To work this market you need a current Journeyman license minimum—Apprentice won't get you on commercial jobs. Idaho's licensing is clean: get your hours, pass the exam, renew every two years with 16 hours CE. Boise's permit process is straightforward but mandatory; don't skip it. Peak season April through October means you schedule maintenance and team expansion before March. Winter isn't dead—emergency calls spike with frozen pipes and heating issues—but capacity planning is critical. Local code enforcement is professional and consistent; they inspect rough-in and finals, so your installations need to be right the first time. Build relationships with permit expeditors and inspectors; it saves days. Gas piping work requires additional State certification—don't assume your plumbing license covers it. Bonding and insurance aren't optional if you want commercial work. Price competitively on standard service calls but command premium rates for emergency response and specialized work.
- median hourly wage and annual salaryU.S. Bureau of Labor Statistics, Occupational Employment Statistics, May 2023
- number of licensed plumbing establishments in IdahoU.S. Census Bureau, County Business Patterns; Idaho Department of Labor licensing records
- Idaho apprenticeship requirements, exam structure, renewal cycleIdaho Department of Labor, Apprenticeship and Training Division; Idaho Administrative Code
- Boise plumbing permits, inspection schedule, code requirementsBoise City Development Services; City of Boise Municipal Code, Title 16
- Idaho workers compensation and general liability insurance requirementsIdaho Department of Labor; Boise City Code; National Association of State Boards of Examiners for Plumbing (NASBE)
- seasonal demand patterns, peak construction seasonDodge Data & Analytics Construction Forecast; Boise Area Chamber of Commerce economic reports; industry practice observation
Frequently Asked Questions
What's the difference between an Apprentice, Journeyman, and Master plumber license in Idaho?
Apprentice: 4-year indentured training program, minimum 8,000 documented hours under licensed journeyman supervision, passing exam required. Cannot work independently or supervise others. Journeyman: 8,000+ hours experience or equivalent, pass journeyman exam, can work independently and supervise apprentices. Master: 4+ additional years beyond journeyman, pass master exam plus business law exam, can own a business and bid large projects. All renew biennially with 16 continuing education hours per cycle. Source: Idaho Department of Labor, Apprenticeship and Training Division.
Do I need a permit for every plumbing job in Boise?
Nearly all plumbing work requires a permit from Boise City Development Services: new installations, replacements, repairs of water supply, drainage, or gas piping. Minor maintenance (washers, fill valves) may not require permits, but when in doubt, pull one. Permit cost ranges $25-$150 depending on scope. Skipping permits risks fines, failed inspections, and liability issues. Source: Boise City Development Services Code and Permitting.
What's the current median wage for plumbers in Idaho?
The median hourly wage for plumbers in Idaho is $28.10/hour, approximately $58,448 annually. This is based on statewide data and varies by experience level, license type, and specialization (gas work, industrial systems command higher rates). Boise market wages typically track at or slightly above state median. Source: U.S. Bureau of Labor Statistics, Occupational Employment Statistics.
How often do I need to renew my Idaho plumbing license?
All Idaho plumbing licenses (Apprentice, Journeyman, Master) renew biennially—every 2 years. Renewal requires proof of 16 continuing education hours completed during the two-year cycle. Renewal applications are submitted to the Idaho Department of Labor, Apprenticeship and Training Division. Failure to renew on schedule results in license suspension. Source: Idaho Department of Labor, Apprenticeship and Training Division.
What insurance and bonding do I need to work as a plumber in Boise?
Idaho state law does not mandate specific insurance minimums for plumbers, but Workers Compensation is required for any business with employees. Boise municipal code and industry practice strongly recommend General Liability insurance minimum $1,000,000; commercial and public work often requires $2,000,000 GL coverage. Bonding may be required for municipal or public projects. Check with each project's requirements before bidding. Source: Boise City Code, Idaho Department of Labor.
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