For UK plumbers & heating engineers

Invoice the callout before you've left the drive

Message Amy on the way out and the invoice is written, emailed and filed before you're home. She chases the ones who don't pay, and keeps the boiler details on the job. It's your existing WhatsApp — there's nothing new to learn.

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A callout, invoiced and chased in two messages

Typed in the van with the engine running. That's the whole workflow.

Invoice Mrs Hughes £1,850, boiler install, 14 Mill Lane
A
Invoice created for Mrs Hughes — £1,850 (£2,220 inc VAT). Emailed and saved. Want a copy?
no ta. chase the Carter callout invoice, still not paid
A
Chased Mr Carter — reminder sent with your bank details and a pay link. I'll tell you the moment it's paid.

Built for work that doesn't wait

The nine-at-night callout

Emergency work is the worst to invoice, because by the time you've eaten you've lost the detail and the will. Send it while it's fresh and the invoice is gone before the kettle's boiled.

Small jobs, lots of them

Twelve callouts in a week is twelve invoices nobody wants to sit and type on a Sunday. One message each, as you finish, and Sunday stays yours.

The customer who goes quiet

Amy watches which invoices have gone past their terms and sends the reminder with your bank details and a pay link, so you're not the one having that conversation.

The paperwork a plumber ends up needing

None of this takes a separate step. It's the residue of messages you were sending anyway.

Appliance and Gas Safe details

Boiler make, model, serial, the notification reference — sent as a sentence, stored against the job, findable when the same customer rings about the same boiler in three years.

What was done, and when

Each visit timestamped on the job. Useful when a customer insists the leak was there before you touched it, and you can see the date you didn't touch it.

Merchant and parts receipts

Photograph the docket from Plumbase, City Plumbing or wherever you ended up. Amy reads it, categorises it and files it — including the VAT element if you're registered.

Who owes you, and for how long

Every invoice carries its own age. Amy tells you each morning what's outstanding and what's tipped over its terms, so nothing quietly ages into a write-off.

Mileage on callouts

Emergency work means miles you never write down. Tell her where you went and it's logged at the HMRC rate against the job.

This isn't accounting software. It's the hour after the job.

The problem with plumbing isn't the plumbing — it's that every callout generates a small pile of admin at exactly the moment you have nothing left. Software doesn't fix that, because software is one more thing to open. TradesOffice takes it as a message: the invoice goes out, the receipt gets filed, the chase happens on its own. Your accountant carries on doing the accounts, only now with records that were captured on the night rather than reassembled in January. £19.99 a month.

Questions we get from heating engineers

Can I really invoice a callout in under a minute?

That's the design target. One message with the customer, the amount and roughly what you did, and the PDF is written, emailed to the customer and stored — normally back with you inside a minute, while you're still parked up.

Will it chase people without me asking?

It won't email anyone behind your back. Amy tells you each morning which invoices have gone past their terms and you say the word — then she sends the reminder with your bank details and a pay link, and tells you when the money lands.

What if I'm on a job and can't type?

Send a voice note and she'll deal with it the same way. Most people just text, because it's quicker and quieter, but the option's there when your hands are full or covered in flux.

I'm VAT registered — how does that work?

You give Amy your VAT details once and she applies them to your invoices and keeps the VAT element separate on your expenses, so the quarterly figures are already split out. Prices you send her are always treated as the figure before VAT — say £1,850 and that's the net, never the gross. Anything unusual, like whether a particular install qualifies for a reduced rate, stays a conversation between you and your accountant; Amy doesn't guess at it.

I work with one other engineer. Does that work?

Yes. More than one number can message the same business, so you both raise invoices and log receipts into the same set of records rather than two half-sets that have to be merged later.

Invoice tonight's callout tonight

Save Amy, send her the job you've just finished, and watch the invoice come back before you've got your boots off. 14 days free, no card.

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