How to start a plumbing business the unglamorous way
Get the plumbing authorisation and insurance required for the work where you trade. Requirements differ by jurisdiction and restricted work. Check the local authority. Do not copy a fee table from a forum.
A call-out business dies in the gap between the phone call and the invoice. Close that gap before you buy a second van.
Set up the business behind the work
Choose the legal structure available where you trade, register for the taxes that apply, and open a separate business bank account. Ask a qualified local accountant which registrations and records your business needs; do not rely on a generic checklist from another jurisdiction.
Build a simple first-year budget for tools, vehicle, insurance, software, tax, and a cash buffer. Decide who the first customer is and how they will find you — referrals, local search, property managers, builders, or maintenance agreements — then track which channel produces accepted work rather than enquiries alone.
- Register the business and required tax accounts
- Separate business banking and bookkeeping from personal spending
- Budget fixed overhead, job costs, tax, and working capital
- Write a repeatable way to win the first ten suitable customers
- Keep evidence of licences, insurance, quotes, variations, and invoices
Call-outs need a board, not a brain
Emergency work arrives while you are under a house. If the next job only exists in your head, you will double-book or forget the deposit.
Put the enquiry on a board as soon as it is a job. Quoted, approved, invoiced. The crew should see the address, the scope and the access notes without ringing you.
Quote the work you can see
Blocked drain vs a bathroom rough-in are different papers. If the ceiling is closed, it is an estimate. If you can stand behind a total, it is a quote. Name the document.
Write exclusions: chasing, after-hours, making good. That is how variations stay civil.
Invoice while you still remember the fittings
Payment reminders belong to the job, not a Sunday spreadsheet. Plumbing job management software is built for that loop. Start with the habit even if the first ten jobs are still on paper templates.