1. Executive Summary — Highest Revenue Plumbing Franchises
- Typical Total Investment
- $100K – $400K+
- Median Unit Revenue
- $1.8M
- Net Margin After Fees
- 8 – 15%
- Typical Payback
- 3 – 5 years
From a franchise financial analyst’s lens, this ranking helps buyers searching for highest revenue plumbing franchise shortlist systems using risk-adjusted economics — not marketing alone. Across plumbing businesses, plan on roughly $100K – $400K+ total investment, mature-unit revenue near $900K – $3.5M+, and net margins of 8 – 15% after a typical 6 – 10% royalty/ad stack. Mr. Rooter leads this specific ranking; always re-underwrite the local site.
- Primary keyword intent answered: *highest revenue plumbing franchise, how much does a plumbing franchise make, franchise average sales*.
- Consultant thesis: Rank brands on unit economics after royalties, utilization, and support quality.
- Buyer takeaway: Shortlist 2–3 systems that match your liquidity, operator model, and territory plan before discovery fees.
2. Highest Revenue Plumbing Franchises Ranked
Ranked by typical mature-unit revenue potential. Higher revenue ≠ higher owner income if royalties, rent, and labor consume the gain — pair with the profitability ranking.
| Rank | Franchise | Mature Unit Revenue | Investment | Net Margin After Fees | Revenue Notes |
|---|---|---|---|---|---|
| 1 | Mr. Rooter | $1.2M – $3.5M | $150K – $350K | 9 – 15% | Service-forward multi-truck model with strong drain and plumbing repair mix |
| 2 | Benjamin Franklin Plumbing | $1.1M – $3M | $140K – $320K | 9 – 15% | Neighborly systems, training depth, first-timer friendly operations |
| 3 | Roto-Rooter | $1M – $3.2M | $125K – $300K+ | 8 – 14% | Strongest brand recognition with drain-cleaning specialty and licensing options |
| 4 | Rooter-Man | $900K – $2.5M | $110K – $280K | 8 – 14% | Lower CapEx entry point for smaller-market operators |
How to use this ranking: Start with #1–#3, then stress-test site criteria, royalties, and working capital in the Plumbing franchise economics dashboard.
3. What Drives Plumbing Franchise Revenue
- Visit / patient volume: Brand traffic and memberships fill capacity faster than cold starts.
- Average ticket / package size: Mix of core and premium services.
- Room or chair productivity: Utilization is the swing factor.
- Retail & membership attach: Recurring packages lift effective annual sales.
- Site class: End-cap and A/B retail corridors still outperform most digital spend.
- Hours & staffing coverage: Extended hours help only if labor % stays controlled.
4. Consultant Playbook
When underwriting *how much a plumbing franchise makes*, ask for Item 19 / franchisee comps in markets like yours — national averages mislead.
- Tool: Plumbing Revenue per Technician Calculator
- Tool: Plumbing Profit Margin Calculator
- Tool: Plumbing Valuation Calculator
- Compare brands: Plumbing franchise comparison.
- Franchise vs independent path: Related comparison.
- Related: Best Plumbing Franchises 2026
- Related: Lowest Cost Plumbing Franchises 2026
- Guide home: Plumbing Franchise Guide.
5. FAQ — Highest Revenue Plumbing Franchises
- How much revenue does a plumbing franchise make? Mature units commonly generate $900K – $3.5M+; the panel mid-point is near $1.8M.
- Which franchise has the highest sales per location? Mr. Rooter leads this revenue ranking for mature units — validate local comps.
- Does higher revenue mean a better franchise? Only if rent, labor, and royalties leave healthy owner cash flow.
Return to the Plumbing Franchise Guide for the full brand matrix, economics dashboard, and calculators.