The question sounds like a pricing preference. It is not. It decides who absorbs the risk on every job you take, and it decides whether getting better at your work makes you more money or less.

The one line version

Flat rate for work you have done before. Hourly for work you have not. Almost every good pricing structure is some version of that sentence.

Why hourly punishes you for getting good

You start out taking four hours on a job. Two years later you do the same job in two. At $100 an hour, your reward for two years of getting better is cutting your own invoice in half. Meanwhile the slowest shop in town bills the most.

Hourly also puts you in an argument you cannot win. Every invoice invites the customer to audit your minutes. You end up defending a lunch break instead of talking about the work.

When hourly is still the right answer

  • Diagnostics. You are being paid to find out what is wrong. You cannot price what you have not found.
  • Teardowns and unknown scope. Old buildings, old equipment, water damage, anything behind a wall.
  • Customer-driven scope creep. Where the customer keeps changing their mind, the clock is the only fair meter.
  • Brand new service lines. Bill hourly for the first handful, track them, then move to flat rate once you know the real time.

The hybrid is what most experienced shops land on: hourly for the diagnostic, flat rate for the repair, with the diagnostic fee credited against the job if they approve the work.

The math: turning your hourly rate into flat prices

  1. Pick your top five jobs by volume. Not by dollar amount, by count. Those are the ones worth pricing.
  2. Time each one three to five times. Real times, including setup, cleanup, and the trip to the supply house.
  3. Use the longest honest time, not the average. Averages guarantee you lose money on half the jobs.
  4. Multiply by your hourly rate. If your rate is too low, fix that first, because flat rate locks it in.
  5. Add parts and materials at your marked up cost. Marked up, not at cost. Stocking, sourcing, and warranty are real work.
  6. Add 15 to 20 percent. That is the buffer for the version of the job that goes sideways, and it will.

Worked example. A job that takes 2.5 hours at worst, a $110 hourly rate, $80 of parts marked up to $120:

(2.5 × $110) + $120 = $395, plus 18 percent buffer = about $465 flat.

Now when you do that job in 1.75 hours, the gain is yours. That is the whole point.

What has to be written down before you quote flat

Flat rate without a defined scope is just a discount you did not mean to give. Every flat price needs:

  • What is included. Specific parts, specific labor, specific finish state.
  • What is not. The exclusions are where the margin gets saved.
  • The change order trigger. One sentence: if we find X, work stops and we requote. Say it out loud at the quote, not in the invoice.
  • How long the price is good for. Thirty days is standard, shorter when material prices are moving.

How to switch without losing your customers

Do not announce a pricing philosophy. Just start quoting the new way, one job at a time, and say it plainly:

"That job is $465. That is the whole thing, parts and labor. If we open it up and find rot behind the panel, I will stop and call you with a number before I do anything else. But barring that, $465 is what you pay."

Three things to hold to while you switch:

  • Do not apologize for the number. Say it, then stop talking. The silence is not disagreement.
  • Do not grandfather everybody. Pick a date. Quotes issued before it hold, quotes after it are the new way.
  • Expect to lose a few. The customers who leave over a defined price were the ones benefiting from your old ambiguity.

Paying your people is a different question

What you charge and how you pay are separate decisions. Plenty of shops bill customers flat rate and pay technicians hourly, which is the simplest and lowest risk combination. Flat rate or production based pay brings in overtime, minimum wage, and recordkeeping rules that vary by state, and getting them wrong is expensive. If you want to move pay to that model, have a labor attorney or payroll advisor sign off before you tell the crew.

The 30 day version

  1. Week one: time your five most common jobs honestly.
  2. Week two: build the flat prices with the formula above and write the inclusions and exclusions for each.
  3. Week three: quote flat on every one of those five jobs. Keep hourly for everything else.
  4. Week four: check your actual hours against your quoted hours. Adjust the ones you underpriced. Do not adjust down the ones you won.

Getting a second opinion on your actual numbers

The formula is easy. Being honest about your own times and holding your price at the quote is the hard part, and it is where most owners want someone to check their work. That is what Ask a Shop Owner is for: put your real job, your real hours, and your real rate in, and get an answer grounded in what other owners at your size actually charge. Seven day free trial, then $97 a month.

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