Invoice software for plumbers
Quote a job standing in the customer’s kitchen, bill the call-out fee plus parts and labor as separate lines, and get paid by a link instead of waiting on a mailed check.
Most plumbing invoicing problems start on the job, not at the desk. A customer wants a number before you touch anything, so you’re quoting a leaking mixer tap or a failed water heater from your phone, in their hallway, with no time to open a laptop. Then, once the work is done, the invoice has to hold three different kinds of charges that don’t behave the same way — a flat call-out fee, parts you bought and marked up, and labor billed by the hour — and a customer who can’t see the difference is a customer who calls to ask why the bill is “so high for just a tap.”
Bigger jobs add a second problem: deposits. A water heater replacement or a re-pipe isn’t something you front the cost of and invoice at the end — you take a deposit up front, then have to make sure the final invoice reflects it correctly instead of billing the customer for the full job a second time. And on almost every job, there’s a warranty to stand behind. If you don’t write it down on the invoice, it’s your word against theirs six months later when they call about the same drain.
A spreadsheet or a paper invoice pad can’t quote on site, can’t itemize a marked-up part cleanly, and definitely can’t chase a late payment for you. SendBilling handles all three — quoting, itemized billing, and getting paid — without turning your evenings into an admin shift.
Built around how plumbing jobs actually get billed
Every piece maps to a real step in a plumbing job, from the quote on the doorstep to the payment landing in your account.
Quote the job on site
Write up an estimate from the customer's kitchen or bathroom before you've left the property. Send it from your phone, and they can approve it on the spot instead of chasing a callback.
Try the estimate generatorTurn the estimate into an invoice
An accepted estimate converts into an invoice in one click, with your logo, your numbering, and the same line items — no retyping the job into a second document.
Try the invoice generatorItemize call-out, parts, and labor
Keep the trip fee, marked-up parts, and labor hours on their own lines instead of one lump sum, so a customer can see exactly what they paid for and you can see your margin on parts.
See online invoicingGet paid without chasing a check
Every invoice gets a branded pay link. Point the Pay button at Stripe, PayPal, Wise, or your own bank transfer details — the customer pays you directly, no cut taken by SendBilling.
Start freeStop chasing unpaid invoices
Turn on automatic reminders for the customer who says the check's in the mail but it never quite arrives — SendBilling follows up on your schedule so you don't have to remember to.
See payment remindersWhat a plumbing invoice looks like in SendBilling
A water heater swap, itemized the way a plumbing customer actually expects to see it — call-out fee, parts with your markup baked in, labor hours, disposal, the deposit already paid, and a workmanship warranty note on record.
Rivera Plumbing & Drain
Invoice #1097 · Water heater replacement
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Call-out / trip fee | 1 | $75.00 | $75.00 |
| Parts — 50-gal water heater (incl. parts markup) | 1 | $146.00 | $146.00 |
| Fittings & supply lines | 3 | $18.00 | $54.00 |
| Labor — install, test & haul-away (hrs) | 2.5 | $95.00 | $237.50 |
| Old unit disposal fee | 1 | $25.00 | $25.00 |
| Subtotal | $537.50 | ||
| Tax (8%) | $43.00 | ||
| Deposit paid at estimate | −$150.00 | ||
| Balance due | $430.50 | ||
12-month workmanship warranty on labor for this installation. Manufacturer warranty on the water heater itself applies separately — keep this invoice as proof of install date.
Parts, labor, and the call-out fee each sit on their own line so a customer can see what they’re paying for — and you can see your margin on the part at a glance.
Pairs well with
Just need a quick invoice for one job and nothing else? Use the free invoice generator — no account needed to build and download one. Or start from our free plumber invoice template.
Plumbing invoicing questions
Can I quote a plumbing job on site before I invoice it?
Yes. Build an estimate on the estimate generator right from the job — trip fee, parts, and estimated labor — and send it for the customer to approve. Once they accept it, convert it into an invoice in one click without re-entering anything.
Can I bill the call-out fee, parts, and labor as separate lines?
Yes. Add as many line items as the job needs — a call-out or trip fee, each part with its own price, and labor billed by the hour or as a flat rate — so the customer sees an itemized breakdown instead of one number.
Can I mark up parts on a plumbing invoice?
Yes. Enter your sell price for each part directly on the line item — SendBilling doesn't force a cost-plus formula, so you set the price you actually want to charge, markup included.
How do deposits work for bigger jobs, like a water heater install?
Take a deposit when the estimate is approved, then record it against the final invoice as a line item so the balance due reflects what's actually still owed, not the full job total.
Can I add a warranty note to my invoices?
Yes. Add a note line for your workmanship warranty — for example, 12 months on labor — so it's on record with the customer and easy to point back to if they call about the same issue later.
Does SendBilling take a cut when a customer pays online?
No. We don't process payments ourselves. Connect your own Stripe, PayPal, Wise, or bank transfer details, and the pay link on the invoice sends the customer straight to you — full amount, no markup.
Is this free for a plumbing business right now?
Yes. SendBilling is in early access, so estimates, invoicing, itemized line items, pay links, and reminders are free and unlimited on every plan. A Lifetime plan launches later at $19.99 one-time for anyone who wants to lock in pricing early.
Quote it, invoice it, get paid — all in one tool.
Free to start, no credit card required. Compare plans on the pricing page or see everything else on the features page.
Updated July 2026