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Principle 01 · Guessing Costs Money

The Business Graduate Who Nearly Sank a Plumbing Company

Moneyball for the Trades · Story · Source subject: Ellen Rohr

7 min

Ellen Rohr graduated at the top of her business class.
Then she nearly sank a plumbing company.

That is her description, not an insult. She tells the story herself.

Her parents had spent roughly $100,000 on her business education. She had the degree. She had the grades. She had every reason to believe she understood business.

She did not know how to balance a checkbook.

Then her husband’s business partner died unexpectedly, and Ellen stepped into the family plumbing company.

Money moved through the business all month. Calls came in. Jobs were completed. Customers paid. At the end of the month, there was never enough money left.

The company looked like a business.
The bank account kept telling a different story.

The humiliating part

When people tell stories about failure, they usually begin by removing the contradiction. They were too young. They lacked training. They entered an industry they did not understand.

Ellen’s story does not offer that comfort.

She had studied business. She was intelligent. She cared about the company. She worked.

And the money still disappeared.

That is why the story matters to contractors. Most owners do not price badly because they are lazy or dishonest. They price badly because the business gives them enough evidence to feel right.

The phone rings. Customers say yes. The board fills. Technicians stay busy. Revenue appears on the report. Every visible signal says the company is working.

Then the bank balance arrives as an accusation.

A selling price can win and still be wrong

Imagine a plumbing company building a price for a water heater replacement. The owner knows roughly what competitors charge. The technician knows how long the job usually takes. The supplier’s material price is familiar.

The company adds a little for overhead, a little for profit, and rounds the total to a number the homeowner will accept.

The price sells.

That success becomes proof. If customers keep saying yes, the number must be right.

But what did the price actually carry?

The technician’s drive time? The CSR who answered the call? The dispatcher who moved the board? Payroll taxes? Workers' compensation? The truck? The warehouse? Warranty exposure? Training? Financing fees? The callback that happens one job out of twenty? The hour the technician spent collecting the material the company thought was in stock?

The selling price can be accepted by the customer and rejected by the economics of the company. The rejection simply arrives later.

“Are you pulling your prices out of thin air?”

That is the question Ellen uses to open How Much Should I Charge? Then she makes the behavior difficult to hide.

Do you call competitors, pretend to be a customer, learn what they charge, and copy the number? Do you rely on the going rate? Do you begin with what you think the market will bear?

These methods feel like research.
They are often guesses with better clothing.

A competitor’s price does not reveal the competitor’s company. Maybe it has lower labor costs. Maybe it buys at greater volume. Maybe it has more debt. Maybe it is losing money. Maybe the owner does not know either.

When you copy the price, you copy the conclusion without gaining access to the calculation. The number enters your pricebook carrying authority it did not earn.

Then repetition makes the number harder to question. Ten technicians learn it. Sales scripts are built around it. Financing options display it. Marketing begins promising the service at a price anchored to it. Managers evaluate close rate against it.

Soon the number is no longer treated as a decision the company made. It is treated as a fact about the market.

That is how a guess becomes infrastructure.

Changing it now feels dangerous because the business has organized behavior around it. Yet every completed job supplies new evidence. Actual labor, actual material, actual drive time, actual financing fees, actual callbacks, and actual gross profit can either confirm the price or expose it.

The pricebook should be a living record of what the business has learned, not a museum of what someone once believed.

The mentors

Ellen’s recovery began when experienced contractors taught her how to keep score.

Not with a complicated financial model designed to impress a CFO. With basics. A simple business plan. A simple budget. A clear understanding of where the money went. A selling price built to make money on the job.

She describes the lesson as making business “UN-Complicated.” Focus on the few things that create the greatest impact.

That phrase can sound light until you understand what it replaced. Confusion. Shame. The belief that plenty of money was moving, so the business should be healthy. The hope that another good month would repair the last one.

Simplicity was not the absence of financial discipline.
It was financial discipline made usable.

Why busy companies resist this lesson

Owners rarely wake up excited to prove that their price is wrong.

The current number has history. Customers have paid it. Salespeople know how to present it. Technicians recognize it. Changing it creates fear.

What if the close rate falls? What if the competitor is cheaper? What if the phones slow down?

So the company keeps the known price and tries to improve everything around it. More leads. More training. More trucks. More calls per technician.

But volume does not repair bad unit economics.
It repeats them.

If a job fails to carry its share of the company, selling more of that job accelerates the problem.

Consider what happens when the company celebrates revenue without reviewing realized margin by service. The best selling option earns more marketing, more training attention, and more inventory. Capacity shifts toward it. The entire operating system becomes better at producing the wrong economic result.

The company does not merely repeat the pricing mistake. It scales it.

The schedule gets fuller. The bank account gets tighter. The owner works harder and becomes more confused.

The business feels successful right up until cash makes the decision for it.

The difference between price and proof

A price is a promise. The company promises to deliver the work for that amount.

But before the company makes the promise, the number should survive a test.

What must the work consume? What must the company carry? What can go wrong? What profit is required to replace equipment, develop people, absorb mistakes, and remain healthy? What happens when the job takes longer than average? What happens when the customer finances? What happens when material moves?

The goal is not to predict every variation perfectly. The goal is to stop pretending that uncertainty disappears because the pricebook contains a number.

Evidence does not eliminate judgment.
It gives judgment something solid to stand on.

“But customers won’t pay it”

Some will not. That matters.

A financially correct price does not automatically create value in the customer’s mind. The company still has to communicate, differentiate, offer appropriate options, and earn trust.

But lowering the price without changing the economics does not solve the customer problem. It transfers the cost to the company.

Maybe the owner absorbs it by paying herself less. Maybe the team absorbs it through weak training or old trucks. Maybe the next customer absorbs it when the company rushes another job. Maybe the business borrows to keep moving.

The cost remains. Someone pays it.

The lesson Ellen had to earn

Ellen did not nearly sink the company because she lacked intelligence. She nearly sank it because intelligence without visibility can still produce confidence.

She saw money moving. She could not see why it did not remain.

The mentors did not give her a more persuasive opinion. They gave her a scoreboard.

Budget. Costs. Selling price. Profit. Cash.

The basic numbers removed the mystery. And once the mystery was gone, a much harder truth became visible:

The company was not unlucky.
The company was making promises before it had calculated what those promises required.

Guessing costs money.

That is not a criticism of instinct. Every experienced contractor uses instinct. It notices a bad job, a difficult customer, an unrealistic schedule, or a technician who needs help.

But instinct should trigger the calculation.
It should not replace it.

The operating move

Pick the five services your company sells most often. For each one, write down the current selling price. Then rebuild it.

Direct labor. Labor burden. Materials. Equipment. Drive time. Overhead. Callbacks. Financing cost. Required profit.

Compare the calculated number with the number in the pricebook.

Do not ask first whether the market likes the answer. Ask whether your business can survive the promise.

Ellen’s degree did not save the plumbing company. Visibility did.

The price stopped coming out of thin air and started coming out of the business the company was actually trying to operate.

That’s Moneyball for the Trades.