Knockround · 7 days free, no credit card needed
The invoice and estimate app for plumbers
Knockround is the plumbing invoice and estimate app for owner-operators. Fix the leak, send the invoice before you're back in the truck, and get paid by card while you're still on their street.


Call-outs paid on the day
A leak or a clogged drain is done in an hour, so the invoice goes out before you leave: text it, or show the QR code and they pay on their phone with a credit card or Apple Pay. No chasing next week.
Bigger work estimated first
Water heater swaps, repipes and bathroom work get an estimate with each line priced. They accept with a tap, the job is booked, and the invoice comes from the same job when it's done.
Who still owes you
Unpaid invoices sit in one list with how long each has waited. Remind writes the message with the link to pay; you press send.
Getting started
Pick Plumbing when you sign up and Knockround lays itself out for jobs and estimates: Today, Jobs, Customers and Money. Connect Stripe in about five minutes to take cards, import your customers from a spreadsheet, and send your first invoice the same day. 7 days free with no credit card needed, then $24.99 a month.
Questions
Does it work for drain cleaning too?
Yes. Pick Drains when you sign up if that's most of your work, or Plumbing; both are set up for jobs and estimates.
Can customers pay on the spot?
Yes. Show the invoice's QR code and they pay on their own phone by card, Apple Pay or Google Pay.
How much is Knockround?
$24.99 a month or $249 a year, after 7 days free with no credit card needed. Card payments cost Stripe's fee of 2.9% + 30¢; Knockround takes no cut.
Try it on tomorrow’s work
Sign up in a minute with Google or your email. 7 days free with no credit card needed, then $24.99 a month or $249 a year.