Key KPIs In Your Plumbing Business

Do You Know Your 9 KPIs?

You’ve been running your plumbing business for years—but if someone asked you to list your nine KPIs, could you?

Do you even know what a KPI is?

KPI stands for Key Performance Indicator. It’s a measurable value that shows how effectively your business is performing. For plumbing contractors, tracking the right KPIs gives you clarity, control, and confidence in your decision-making.

Here are some essential KPIs every plumbing business owner should know.

1 & 2. Sales Per Truck and Cost Per Truck

Start with your trucks—they are revenue-generating assets.

• Sales per truck: How much revenue does each truck produce?
• Cost per truck: What are the total expenses tied to that truck (fuel, maintenance, insurance, payments, etc.)?

If sales consistently exceed costs, you’re on track. If costs start overtaking sales, determine why. Is it aging vehicles, declining performance, or reduced demand?

3. Profit and Loss Per Truck (Fleet Performance)

Now evaluate your fleet as a whole.

Combine sales and cost data to determine profit and loss per truck across your operation. If the fleet isn’t producing profit, ask:

• Are older trucks increasing expenses?
• Are technicians underperforming?
• Is pricing too low?
• Are dispatching or scheduling inefficiencies hurting revenue?

Fleet-level analysis reveals whether your trucks are assets—or liabilities.

4. Cost Per Technician

Each technician carries a full employment cost, not just a paycheck. Consider:

• Salary or hourly wages
• Vacation and sick time
• Health insurance
• Payroll taxes
• Retirement contributions (such as 401(k))
• Additional benefits

Knowing the true cost of each tech helps you determine who is driving profitability—and who may not be.

5. Technician Break-Even Point

This KPI answers a critical question:

At what revenue level does a technician cover their total employment cost?

If a tech consistently performs below break-even, you need to:

• Provide additional training
• Improve pricing or upselling
• Evaluate performance expectations

Break-even awareness protects your margins.

6. Revenue Per Department

If you offer multiple services (residential, commercial, service agreements, remodels, etc.), track revenue by department.

This shows:

• Which services are most profitable
• Where to allocate resources
• Where growth opportunities exist

7. Monthly Break-Even Sales

What level of monthly revenue covers all expenses so that profit equals zero?

Knowing this number gives you a clear target. Everything above it is profit.

8. Jobs Needed to Break Even

How many service calls or installations must you complete each month to hit break-even?

This KPI connects operational performance directly to financial goals. It also helps with technician scheduling and marketing planning.

9. Gross Profit Margin (GPM)

Gross Profit Margin measures how efficiently you turn revenue into profit after covering direct job costs.

A healthy GPM indicates:

• Proper pricing
• Effective job costing
• Strong technician performance

If margins shrink, investigate pricing, material costs, or labor efficiency.

Why KPIs Matter

When you track these numbers together, patterns emerge. You’ll clearly see:

• Where money is being made
• Where it’s being lost
• Which departments or team members need support
• When it’s time to expand

Without KPIs, you’re guessing. With them, you’re leading strategically.

Don’t Want to Track KPIs Yourself?

If tracking performance metrics feels overwhelming—or you simply don’t have the time—professional support can make the difference.

Contractor in Charge specializes in helping plumbing contractors understand their numbers, improve profitability, and build stronger operations.

If you don’t know your KPIs (or cringe at the thought of tracking them), consider exploring professional services designed specifically for plumbers.

Because when you know your numbers, you control your future.