Key Business Benchmarks for Plumbers (2026)

Running a plumbing business is tough. But how do you know if you are winning? Comparing your numbers to industry averages helps you identify leaks in your profitability.

Plumbing Services (Turnover $200k - $600k)

According to ATO data, profitable plumbing businesses operate within these ranges:

• Cost of Sales (Materials): 34% - 42% of turnover.
• Labour: 28% - 36% of turnover.
• Rent/Overheads: 3% - 6% of turnover.
• Net Profit: 18% - 24%.

If your Cost of Sales is higher (e.g., 50%), you are likely undercharging for materials or suffering from wastage/theft.