$18K–$104K
Total Range
$35K
Typical Start
10–20%
Profit Margin
Complete Cost Breakdown
| Category | Low | High |
|---|---|---|
| Licensing & Bonding | ||
| Plumbing License & ExamsJourneyman/master exam + application | $200 | $800 |
| LLC FilingVaries by state | $50 | $500 |
| Surety BondAnnual premium on a $5K-$25K bond | $100 | $1,000 |
| Vehicle | ||
| Work VanUsed cargo van, shelved and stocked | $8,700 | $39,000 |
| Tools & Equipment | ||
| Hand & Power ToolsWrenches, cutters, press tool, torch | $2,600 | $7,000 |
| Drain MachineSectional or drum drain cleaner | $1,000 | $3,000 |
| Inspection CameraSewer/line camera; optional at launch | $0 | $6,000 |
| Starting Material StockFittings, valves, fixtures on the truck | $500 | $2,600 |
| Insurance & Marketing | ||
| General Liability InsuranceAnnual, required for most contracts | $475 | $2,200 |
| Commercial Auto InsuranceAnnual, for the work van | $1,300 | $2,600 |
| Workers CompensationRequired if hiring employees | $2,300 | $5,200 |
| Marketing & WebsiteGoogle LSA ads convert best for trades | $435 | $2,200 |
| TOTAL | $18,000 | $104,000 |
Plumbing Costs by State
Licensing, bonding, and insurance costs vary significantly by state:
Service & Repair vs. Full-Service Company
Service & Repair Only
$18K–$40K
- Repairs, drain cleaning, fixture swaps
- One van, smaller tool investment
- Solo operation viable
- Lower insurance requirements
Full-Service Plumbing Company
$55K–$104K
- Repipes, water heaters, new construction
- Multiple trucks + inspection cameras
- Crew of licensed plumbers + apprentices
- Higher revenue per job ($3K-15K+)
Ways to Reduce Startup Costs
- Start with service and drain work: Skip the inspection camera and heavy material stock until repeat calls justify them
- Buy a used, shelved van: A stocked used cargo van costs $8,000-15,000 vs $35,000+ new
- Rent the big machines: Sewer machines and cameras can be rented per job until volume covers a purchase
- Google Local Services Ads: Pay-per-lead means you only pay for real customer calls
- Buy material at trade counters: Open a supply-house account for contractor pricing instead of retail
Common questions
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Frequently Asked Questions
Q.01 How much does it cost to start a plumbing business?
A plumbing business costs $18,000 to $104,000 to start. A solo service plumber can launch for $18,000 to $40,000 with a used work van, hand and power tools, licensing, and insurance. A full-service company with multiple trucks and employees can exceed $100,000.
Q.02 Do you need a license to start a plumbing business?
Yes. Nearly every state requires a plumbing contractor or master plumber license. The path typically runs apprentice → journeyman → master, requiring 4-5 years of documented field hours and passing a trade exam. Many states also require a surety bond ($5,000-$25,000 face value) and proof of liability insurance before issuing a contractor license.
Q.03 How profitable is a plumbing business?
Plumbing businesses average 10-20% net profit margins. A solo plumber can gross $75,000 to $150,000 in the first year. Established shops with 3-5 trucks often gross $500,000 to $1,500,000. Emergency and after-hours calls, plus recurring commercial maintenance contracts, carry the highest margins.
Q.04 What tools do I need to start a plumbing business?
Core tools include pipe wrenches, tubing cutters, a drain auger/snake, a press tool or torch kit for joining pipe, a basin wrench, and a shop wet/dry vacuum. A power drain machine adds $1,000-3,000 and an inspection camera another $1,500-6,000. A complete starter kit runs $3,000 to $9,000.
Q.05 How long does it take to become a licensed plumber?
A plumbing apprenticeship takes 4-5 years while working under a licensed plumber, after which you can test for a journeyman license. A master plumber or contractor license, which lets you run your own business and pull permits, usually requires an additional 1-2 years of journeyman experience. Total path is typically 5-7 years.
Q.06 Is plumbing a good business to start?
Plumbing is one of the most recession-resistant trades. Leaks, clogs, and failed water heaters are non-negotiable repairs, so demand holds through downturns. The trade also faces a persistent skilled-labor shortage, giving licensed plumbers strong pricing power and a steady stream of work.
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