What does a plumbing invoice look like?
A good plumbing invoice fits on one page: your business details, the client and service address, an invoice number and date, one line per charge (call-out, labor as hours × rate, each part with quantity and price), a total, and a due date. The example below is a real PDF that Voice Invoice produced from a short voice note.
Most "plumbing invoice examples" online are blank templates. This one is filled in: an after-hours call to a leaking kitchen sink, billed as four lines that add up to $441. Below the PDF, every line is explained, including why it's a separate line at all.
What's on this invoice, line by line?
The job: Avery Property Management calls after hours about a leak under the kitchen sink at 214 Maple Street, Unit 3. The shutoff valve has failed and both supply lines are worn. The plumber replaces all three, tests for leaks, and gets the property manager's approval by text before starting.
| Line | Amount | Why it's its own line |
|---|---|---|
| Emergency service call after hours (1 × $125.00) | $125.00 | The surcharge is the line clients question most. Named and separate, it explains itself; folded into labor, it looks like a padded rate. |
| Labor (1.5 × $160.00) | $240.00 | Quantity and rate on the line let the client check the math in their head. A bare "$240 labor" asks them to trust you instead. |
| Replacement shutoff valve (1 × $48.00) | $48.00 | Parts get one line each so the client can see what was installed, and so you have a record if the part fails under warranty. |
| Supply line, braided stainless (2 × $14.00) | $28.00 | Quantity × unit price is clearer than a lump "$28 supply lines", and it matches what the client sees under the sink. |
The math, spelled out: $125 + $240 + $48 + $28 = $441, printed as the amount due. There's no tax line on this job; whether parts, labor, or both are taxable depends on your state, so check your state's revenue department before you copy the layout as-is.
Two more parts carry weight. The spoken notes print as the description of work ("Leak under kitchen sink, replaced shut off valve and supply lines tested for leaks. Customer approved work by text."): what was found and that the work was authorized, which is the paragraph a property manager forwards to the owner. And the due date prints as Sep 29, 2026, the same day as the invoice date. That's how due on receipt shows up on the PDF: as a real date, not a phrase. If you bill on terms instead, the same rule applies (see what Net 30 means for why).
One thing the script says that the PDF doesn't show: the job address. The invoice prints the client under Bill To, and there's no separate job-site field, so "job: 214 Maple Street, Unit 3" didn't land on the page. When the job address matters (a property manager with forty units, say), speak it as part of the notes, "Unit 3, 214 Maple Street: leak under kitchen sink," so it prints in the description of work.
How was this invoice created?
By voice, in the driveway. The plumber said the job out loud once; the app turned it into a draft, and the PDF went out after a quick review. This is the exact script, and you can reuse its shape for your own calls:
Say this
"Create an invoice for Avery Property Management, job: 214 Maple Street, Unit 3, dated September 29, 2026.
Line item: Emergency service call, after-hours, quantity one, one hundred twenty five dollars.
Line item: Labor, one point five hours at one hundred sixty dollars per hour.
Line item: Replacement shutoff valve, quantity one, forty eight dollars.
Line item: Supply line, braided stainless, quantity two, fourteen dollars each.
Notes: Leak under kitchen sink. Replaced shutoff valve and supply lines, tested for leaks. Customer approved
work by text.
Due date: due on receipt."
Notice the pattern: every line says what, how many, and how much, with a unit where one applies ("one point five hours," "fourteen dollars each"). That's what lets the app build quantity × price lines instead of guessing. When a spoken number is ambiguous, the app shows a review banner for you to confirm; it never quietly changes the amount.
How do other plumbing jobs change the layout?
The skeleton stays the same; only the charge lines change. The common variations:
| Job type | How to bill it |
|---|---|
| Daytime service call | Service call / diagnostic fee as line one, then labor and parts. No surcharge line. |
| Flat-rate job (e.g. water heater swap) | One line for the flat-rate job with a short scope description; list the major parts underneath only if your pricing sheet shows them. |
| Trip with no repair | Trip or diagnostic fee alone, plus a note on what was found and what you recommend. It's still a real invoice. |
| Old fixture disposal | A separate "haul-away / disposal" line, so it doesn't vanish into labor. |
| Parts with markup | Bill parts at your selling price per line. The markup doesn't need its own line; the per-part price already carries it. |
For the reasoning behind each of these, and the questions clients ask about emergency rates, see the full guide: how to invoice service calls, parts, and after-hours work.
Common mistakes
Five ways a plumbing invoice stalls payment
- One lump "repair" line. A single $441 figure is the fastest way to get a phone call instead of a payment.
- Labor without hours. "Labor: $240" hides the rate. "1.5 hrs × $160/hr" shows it.
- Hiding the after-hours premium in the rate. Clients notice a doubled rate; they accept a named surcharge.
- No job address. Property managers run many units. Without "Unit 3" somewhere on the page, the invoice waits in a queue while someone works out which job it was.
- No authorization note. "Approved by text" costs you a few words and ends the "who said you could do that?" conversation.
FAQ
What should a plumbing invoice include?
Your business name and contact details, the client's name and the service address, an invoice number and date, each charge on its own line (call-out, labor with hours and rate, each part with quantity and price), the total, and the payment terms with a real due date.
Should plumbers itemize parts on an invoice?
Yes. A separate line per part, with quantity and unit price, lets the client see exactly what went into the job and removes the most common reason for a payment question. "Parts and materials: $76" invites a phone call; "Shutoff valve, 1 × $48" doesn't.
How do you show an after-hours or emergency charge?
As its own line item, labeled plainly ("Emergency service call, after-hours"), separate from labor. Clients accept a visible, named surcharge far more easily than a labor rate that quietly doubled at night.
Do plumbers need their license number on the invoice?
It depends on your state. California, for example, requires the license number on contracts, bids, and advertising (Business and Professions Code §7030.5). Many plumbers add it to the invoice header too, since it's one line and settles the question. Check your state licensing board for the exact rule.
Is this a real invoice from the app?
Yes. The PDF on this page was generated by Voice Invoice from the voice script shown below it, using fictional business and client details. The invoice itself wasn't retyped or edited; the numbered callouts are added on top of it.
Next step
Copy the layout above for your next call, or start from the field-by-field checklist in How to Write an Invoice (With Examples). If you want the PDF itself without typing, the voice script is the whole workflow.
Say it once and send it: create your first invoice by voice on iPhone before you leave the driveway.
Download Voice Invoice on the App Store