How to choose a plumber in Sydney

Choosing a plumber when something is wrong at home is stressful, and stress is exactly when hasty decisions are made. This checklist is designed to be used in a few minutes. It does not recommend any company, because this site is an information resource and does not refer or rank tradespeople.

Step one: check the licence

In NSW, plumbing, drainage and gas fitting are regulated trades. Ask for the licence number and check it on the NSW Fair Trading licence check. Confirm that the licence is current and covers the class of work you need, since gas fitting, drainage and general plumbing are not the same thing. If the person arriving is an apprentice or an assistant, ask who is supervising the work and who is responsible for it.

Step two: describe the job clearly

The better your brief, the more comparable the answers. Describe what you see, what you have already tried and what you want fixed, and include photos. Our page on how to brief a plumber has a full checklist.

Step three: ask how the price works

• Is it a fixed price, an estimate or time and materials?
• What is included: parts, disposal, making good and paperwork?
• Is there a charge to attend and assess, and is it applied to the work?
• How will a change in scope be explained and approved before it is done?

Plumbing costs in Sydney explains why prices vary so much, which helps you tell a reasonable difference from a worrying one.

Step four: look at how they communicate

A trustworthy tradesperson explains the cause in plain language, offers options where there are any, and does not push you toward a larger job than the evidence supports. Ask to be shown the problem, whether through a photo, a camera inspection or the removed part. Be wary of anyone who cannot or will not explain what they found.

Step five: ask about paperwork and aftercare

For regulated work, ask what compliance paperwork will be provided and when. Ask how problems after the job are handled and what in writing you can expect. Keep invoices, certificates and manuals together, because you will need them if you sell, claim on insurance or have a fault later.

Where to look for providers

Ask neighbours, your strata manager or other trades you already trust, and read what past customers have said, remembering that online feedback is imperfect and can be one-sided. Local knowledge matters too: a provider familiar with your suburb's housing is likely to anticipate issues. Our Sydney areas guides describe what is typical, though not who to call.

Warning signs

• No licence number, or one that does not check out.
• Pressure to agree immediately, or a price that changes on the doorstep.
• No written scope or price for a large job.
• Requests for full payment before any work is done.
• An unwillingness to explain, or to provide paperwork.