Plumber Invoice Template
A good plumbing invoice does one job above all: it gets you paid without a phone call. That means it has to match the quote the customer accepted, show exactly what was done and what was supplied, and make paying you the easy option. This template is set out the way plumbers actually bill, with labour and materials on separate lines and a clear payment due date at the foot of the page.
Typical lines on a plumbing invoice include the call-out or diagnostic fee where one applied, first fix and second fix labour on bathroom and kitchen work, and the materials supplied: copper or plastic pipe and fittings, the boiler, cylinder, radiators or sanitaryware, plus consumables. Waste disposal for the old kit and making good, such as reboarding and skimming after chasing pipes in, should each have their own line so nothing looks hidden inside the labour rate. Where gas work was carried out, note on the invoice that the appliance was commissioned by a Gas Safe registered engineer and reference the certificate or Benchmark record left with the customer.
On longer jobs such as a full bathroom refit, staged payment keeps cash moving: a booking deposit, an interim invoice after first fix, and the balance on completion. Whatever the job size, use sequential invoice numbers, state your bank details and ask for the invoice number as the transfer reference. Fourteen days is the usual payment term for domestic work, and a polite reminder quoting the number and amount settles most late payments.
What to include in a plumber invoice
- Your business details, Gas Safe registration number where relevant, and a note of your insurance
- Customer name and address, plus the site address if the work was done elsewhere
- A sequential invoice number, the invoice date and the original quote number
- Itemised labour: call-out or diagnostic fee, first fix and second fix, day rate or fixed price
- Itemised materials: pipe and fittings, boiler, cylinder, radiators, sanitaryware and consumables
- Waste removal and disposal of the old boiler, cylinder or fixtures
- Making good, such as reboarding or skimming, as its own line
- Certification and commissioning references for any gas or unvented hot water work
- Payment terms and due date, bank details, transfer reference, VAT if registered, and any deposit already taken
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Open the invoice generatorPlumber invoice FAQs
What payment terms should a plumber put on an invoice?
Fourteen days from the invoice date is common for domestic plumbing work, though some plumbers ask for payment on completion for smaller jobs. Whatever you choose, print the due date clearly, state that you take bank transfer, and give the invoice number as the payment reference so money is easy to match up.
How should I number my plumbing invoices?
Use a simple sequential system and never reuse or skip a number. Something like INV-0001, INV-0002 works well and keeps your records tidy for your accountant and for HMRC if you are ever asked. The quote number the job came from can be shown alongside it so the paper trail is obvious.
Can I invoice in stages for a bathroom refit?
Yes, and on a refit lasting a week or more it is sensible. A common pattern is a deposit to book the job, an interim invoice once first fix is done, and a final invoice after second fix and making good. Set the stages out on the original quote so each invoice matches what the customer agreed.
How do I chase a late plumbing payment politely?
Start with a friendly reminder a day or two after the due date, quoting the invoice number and amount, and attach the invoice again. Most late payments are oversight, not refusal. If a second reminder goes unanswered, a short formal letter before action is the next step before any small claim.