Built for Australian Plumbers
Quoting & Invoicing Software for Plumbers
From burst pipes to hot water installs — quote the job, schedule the work, invoice on-site, and get paid faster. Built for Australian plumbers who'd rather be under the house than behind a desk.
Everything You Need
Built for How Plumbers Actually Work
Forget clunky desktop software. OneBookPlus is the plumbing business app designed for tradies who spend their days on-site — not in an office.
Plumbing Quotes in Minutes
Build itemised quotes for pipe repairs, hot water installs, and drainage work right from your phone. Customers accept with one click, and you convert to an invoice instantly.
Emergency Callout Management
After-hours burst pipe? Log emergency callouts with priority flags, capture the job details on arrival, and invoice the customer before you leave — including any after-hours rates.
Compliance Certificates
Issue compliance certificates for regulated plumbing work. Attach certs to the job record so everything is documented and easy to find when councils or inspectors come knocking.
GST & BAS Ready
Every invoice automatically calculates 10% GST and displays your ABN. Export GST summaries at BAS time — your accountant will thank you.
Job Scheduling & Week View
See your entire week at a glance — blocked drains, hot water installs, maintenance calls. Assign jobs to plumbers on your team and track progress from Quoted through to Invoiced.
Customer & Property History
See every past job at a property — what was fixed, when, and what was quoted. When Mrs. Jones calls about her taps again, you already know the history.
Service Reminders
Automatically flag customers due for hot water system servicing, backflow testing, or annual maintenance. Reach out before they call a competitor.
Expense & Materials Tracking
Log pipe fittings, valves, hot water units, and Bunnings runs against each job. Snap receipt photos so you know exactly how profitable every job really is.
Simple Workflow
How OneBookPlus Works for Plumbers
From quote to payment in four simple steps — designed around a typical plumber's day.
Quote the plumbing job
Create an itemised quote for the repair, install, or maintenance work — labour, materials, and callout fees with GST calculated automatically. Send as a professional PDF with your ABN and licence number.
Schedule & complete the work
Once accepted, the job drops into your calendar. Track time on-site, log materials used, snap photos of the work, and attach any compliance certificates.
Invoice on the spot
Convert the quote to a GST-compliant invoice with one tap. Send it to the customer before you leave the property.
Get paid faster
Customers pay online via the invoice link. Automated reminders chase overdue payments so you can focus on the next job, not debt collection.
Who it's for
Built for every plumbing business
Whether you're a sole trader or running a crew, OneBookPlus adapts to how plumbers work.
Sole Trader Plumber
Running jobs solo, quoting from the van, invoicing between appointments. Needs fast mobile invoicing, automatic GST, and emergency callout tracking.
Hot Water Specialist
Installing and servicing hot water systems across suburbs. Needs detailed quoting for different unit types, compliance documentation, and service reminders.
Plumbing Company Owner
Managing 3-10 plumbers, scheduling jobs across the city, tracking who's where. Needs job scheduling, team assignment, and revenue tracking.
Maintenance Plumber
Regular contract work for strata and property managers. Needs recurring job templates, property history, and batch invoicing.
Stop overpaying
How much are you spending on software?
Most small businesses stitch together 4-6 tools that don't talk to each other. Here's what that typically costs.
Real-world scenario
A day in the life: Steve the plumber
How a Sydney plumber uses OneBookPlus on a typical Wednesday
Steve's phone buzzes at 6:45am — an emergency callout through his OneBookPlus booking page. Burst pipe in Bondi. He flags it as urgent and heads out.
On arrival, Steve diagnoses the issue and creates a quick quote on his phone: $520 labour (including emergency rate) + $85 materials, GST calculated automatically. The customer accepts on the spot.
Pipe fixed by 8:30am. Steve snaps a photo of the completed work, attaches the compliance certificate, and converts the quote to an invoice with one tap. Sent before he's back in the van.
His week view shows two hot water installs and a drainage inspection for the afternoon. His apprentice Ben has three maintenance jobs assigned already. Steve checks his dashboard — a service reminder flags that four customers are due for annual backflow testing. He queues the follow-ups.
End of day: 4 jobs done, $2,100 invoiced, two payments already received. Materials from Reece logged with receipt photos. Come BAS time, Steve's GST summary exports in one click.
How we compare
OneBookPlus vs plumbing software
See how we compare to the tools plumbers typically use.
| Feature | OneBookPlus | Xero | ServiceM8 | Fergus |
|---|---|---|---|---|
| GST invoicing | ||||
| Plumbing quotes with accept link | ||||
| Emergency callout management | ||||
| Job scheduling & week view | ||||
| Compliance certificate storage | ||||
| CRM & property history | ||||
| Online booking page | ||||
| Expense tracking with photos | ||||
| BAS-ready tax reports | ||||
| Free plan available | ||||
| Price | From $0/mo | $35+/mo | $49+/mo | $49+/mo |
Trusted by Plumbers Across Australia
3x
Faster invoicing than paper or spreadsheets
$0
Free plan — no monthly fees to get started
14 days
Average reduction in payment wait times
100%
GST & BAS compliant for Australian plumbers
Australian Owned
Built in Melbourne, AU
GST Compliant
ATO-ready from day one
Bank-Grade Security
256-bit encryption
Free Plan Available
No credit card needed
Frequently Asked Questions
Common questions about invoicing and job management software for plumbers in Australia.
Is OneBookPlus free for plumbers?
Yes — our free plan includes unlimited invoices, quotes, and up to 5 clients. Ideal for sole trader plumbers just getting started. Upgrade anytime as your plumbing business grows.
Does plumber invoicing software handle GST automatically?
Every invoice automatically calculates 10% GST, displays your ABN and plumbing licence number, and meets ATO requirements. At BAS time, export a GST summary in one click.
Can I manage emergency callouts with OneBookPlus?
Yes. Log emergency plumbing callouts with priority flags, capture job details on arrival, and invoice immediately — including after-hours rates. The customer gets a professional invoice before you've left the property.
Does OneBookPlus work for hot water system quotes and drainage jobs?
Absolutely. Create detailed quotes for any plumbing work — hot water system installs, drainage repairs, pipe relining, tap replacements, and gas fitting. Itemise labour, materials, and callout fees separately.
Can I track compliance certificates for plumbing work?
Yes. Attach compliance certificates and inspection reports directly to job records. When councils or customers need documentation, everything is stored in one place and easy to retrieve.
About the author
Bishal Shrestha
Founder & CEO, OneBookPlus
Bishal has over a decade of experience in digital marketing, web development, and small business consulting across Australia. He has worked directly with Australian plumbing businesses — from sole traders handling emergency callouts to companies managing crews across multiple suburbs — helping them streamline quoting, invoicing, and job management.
Stop Chasing Paperwork. Start Getting Paid.
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Get Started FreeLast reviewed and updated: March 2026 by Bishal Shrestha