The short answer
Ask for the plumber's licence number, the call-out fee and the hourly rate before you book. Airtasker says emergency fees can more than double the cost, so ask about after hours rates up front.
The nine questions
- What is your licence number and business name?
- Is there a call-out fee, and what does it cover?
- What is your hourly rate, and is there an after hours rate?
- Is that a fixed price or an estimate?
- Who supplies the parts and fittings?
- Will this work need a permit or a compliance certificate?
- How long will it take and when can you start?
- What warranty do you give on the work?
- Can you send your insurance certificate?
Check the licence yourself
Look the licence up on your state register. Consumer Affairs Victoria says plumbers must be licensed or registered in Victoria, and other states have their own registers.
Common questions
Should I get a quote for a plumbing job?
For anything beyond a simple call-out, yes. Ask for the price in writing, and ask about call-out and after hours fees first.
Sources
- Airtasker: how much does a plumber cost, checked 11 November 2026
- Consumer Affairs Victoria: protecting homeowners from dodgy builders and tradespeople, checked 11 November 2026