Plumbing Profit Margin Benchmarks
Plumbing businesses typically achieve gross margins of 45-65% and net margins of 10-20%. The industry is recession-resistant with steady demand from both residential and commercial customers. Material costs (pipes, fittings, fixtures) consume 35-50% of revenue, making them the single largest expense.
| Metric | Low | Average | High |
|---|---|---|---|
| Gross margin | 40% | 55% | 70% |
| Net margin | 8% | 15% | 25% |
| Markup | 80% | 150% | 250% |
| Typical annual revenue | $80,000 – $500,000/year for solo to multi-truck operations | ||
Key cost drivers
- Materials and parts (35-50%)
- Technician wages and benefits (20-30%)
- Vehicle and fuel costs (8-15%)
- Insurance and licensing (5-8%)
- Marketing (3-8%)
Industry insights
- Service call fees ($75-$150) cover the truck roll — profit comes from the repair work performed on-site.
- Emergency calls (after-hours, weekends) generate 2-3x the revenue per job but require on-call staffing.
- Residential plumbing averages higher margins than commercial because commercial contracts require competitive bidding.
- The most profitable plumbers sell preventive maintenance agreements that generate recurring annual revenue.
Tips to improve margins
- Always quote flat-rate pricing for common repairs rather than time+materials — customers prefer knowing the cost upfront, and flat rates allow you to capture efficiency gains.
- Train your team to upsell preventive maintenance during every service call — a $200 annual inspection generates $600+ in follow-up repairs.
- Track truck revenue per day — the benchmark for successful solo operators is $800-$1,500/truck/day.
- Invest in a CRM that automates follow-up scheduling for annual maintenance customers.
Compare your numbers
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Data quality and assumptions
Last updated: July 2025Formula
Gross margin = (Revenue − Materials) ÷ Revenue × 100. Net margin = (Revenue − All Costs) ÷ Revenue × 100. Truck revenue per day = Total Monthly Revenue ÷ (Trucks × Working Days).
Data sources
IBISWorld Plumbing Industry Report; Plumbing Manufacturers International data.
Limitations
Margins vary significantly by region, service mix (residential vs. commercial vs. emergency), and whether the business does new construction or service/repair work.
Key assumptions
- Revenue includes service calls, repair work, and preventive maintenance
- Materials cost assumes standard wholesale pricing
Methodology
Gross margin accounts for material costs (pipes, fittings, fixtures). Net margin includes labor, vehicles, insurance, marketing, and overhead. Emergency service margins are 15-25% higher than standard service margins.
Calculate your Plumbing profit
Use the calculator below to see how your plumbing margins compare to the benchmarks above.
Calculate profit, margin percentage, and pricing health from cost and revenue.
Calculate required revenue to reach your target profit after tax.
Find how many units or sales dollars you need to cover costs.
Find the fully-loaded hourly cost of an employee beyond base pay — taxes, insurance, benefits included.
Frequently asked questions
What is the average profit margin for a plumbing business?+
Net margins for plumbing businesses average 10-20%. Solo operators at the higher end; larger companies with multiple trucks and office staff at the lower end. Emergency and after-hours service generates the highest per-job margins.
What are the biggest costs in plumbing?+
Materials (pipes, fixtures, fittings) are the largest cost at 35-50% of revenue. Labor (wages, payroll taxes, benefits) is 20-30%. Vehicle costs (fuel, maintenance, insurance) add 8-15%. Minimizing material waste and optimizing truck routes are the biggest profit levers.
Is residential or commercial plumbing more profitable?+
Residential plumbing typically has higher margins per job because customers are less price-sensitive and emergency calls command premium rates. Commercial plumbing has steadier revenue and larger contract sizes but lower margins due to competitive bidding.
How can a plumber increase profit margins?+
Reduce material costs by buying in bulk from wholesale suppliers, implement flat-rate pricing to capture efficiency gains, sell preventive maintenance contracts for recurring revenue, and add water heater and sewer camera inspection services which have high margins.