Why You Should Always Use a QBCC Licensed Plumber in Queensland

Someone called me last year after getting a quote from a bloke who'd offered to replace their hot water system for a couple of hundred dollars less than my quote. No QBCC number on the paperwork, no certificate of compliance mentioned. They wanted to know if they should go with him.

I told them what I'm about to tell you: the cost difference disappears very quickly if something goes wrong. And if something goes wrong and unlicensed work was involved, your insurance company doesn't have to pay. Not "might not" — they have grounds to refuse the claim entirely.

Here's what the licence actually means and why it matters.

What a QBCC Licence Is

The Queensland Building and Construction Commission (QBCC) licences and regulates tradespeople in Queensland. To hold a plumbing licence, a tradesperson must complete a formal apprenticeship, pass trade exams, and meet ongoing compliance requirements.

The licence number is the proof. Every licensed plumber in Queensland has one, and every legitimate quote or invoice should show it. LTH Plumbing's QBCC licence number is 1300686.

You can verify any plumber's licence at www.qbcc.qld.gov.au — the search takes 30 seconds. If the number you've been given doesn't return a result, or the name doesn't match, that's your answer.

Why the Licence Matters in Practice

Unlicensed plumbing is illegal — for both parties

In Queensland, it's illegal to carry out plumbing work without a licence. That applies to the person doing the work. But knowingly hiring an unlicensed tradesperson also creates legal exposure for you as the homeowner. The fine is the least of the problems.

Your insurance may refuse to cover the damage

This is the one that stings. Most home and contents policies cover sudden and accidental water damage — a burst pipe flooding your laundry, a failed appliance connection. But insurance policies contain clauses about workmanship, and unlicensed work gives the insurer grounds to deny the claim.

The scenario plays out like this: an unlicensed plumber does work, a connection fails six months later and causes significant water damage, you make a claim, the insurer investigates the cause, finds the work was unlicensed, and denies the claim. You're left with the repair bill plus the damage bill.

Saving a few hundred dollars on the original job becomes a very expensive decision.

Compliance certificates are legally required — and only a licensed plumber can issue them

For certain plumbing work in Queensland, a compliance certificate must be issued. This includes work on hot water systems, new connections, and significant alterations. The certificate documents that the work was done to code.

This matters when you sell your property — buyers' conveyancers ask about compliance documentation. It matters when you make an insurance claim — the insurer wants evidence the work was done properly. And it matters for your own peace of mind that the work is actually safe.

An unlicensed tradesperson cannot legally issue a compliance certificate. If they offer to provide one, it's fraudulent.

Licensed plumbers carry insurance

Licensed plumbers are required to hold appropriate insurance — public liability and, for licensed contractors, home warranty insurance for larger jobs. If a licensed plumber makes an error that causes damage to your property, there's a mechanism to address it through the QBCC.

With an unlicensed tradesperson, if something goes wrong, your only option is pursuing them personally — and in most cases where people are operating without a licence, the insurance they claim to have either doesn't exist or won't cover the work in question.

The One Question to Ask Before You Book Anyone

"What's your QBCC licence number?"

Any legitimate plumber answers this immediately and without hesitation. They know it off the top of their head because it's on their quotes, their invoices, their vehicle signage, and their compliance certificates. The licence number is their credential.

If someone hedges, says they're working under someone else's licence (which is not how it works), or gets defensive about the question — that's your answer.

What This Doesn't Mean

Using a licensed plumber doesn't guarantee every job will be perfect. Licences don't prevent mistakes. What they do is ensure:

• The person has the training to do the work correctly
• There's a regulatory body (the QBCC) you can complain to if there's a genuine workmanship issue
• The work can be certified if required
• You have recourse if something goes wrong

A licensed plumber who does poor work can be reported to the QBCC and their licence investigated. With an unlicensed tradesperson, there's no equivalent pathway.

Frequently Asked Questions

Can I do any plumbing work myself? In Queensland, replacing tap washers on existing fixtures is considered minor maintenance and doesn't require a licence. Everything else — new connections, hot water systems, drainage work, any modification to existing plumbing — requires a QBCC licensed plumber.

What if the tradie says they're working under their employer's licence? That's only legitimate if they're actually employed by a licensed contractor and working under supervision. A sole operator doing work independently cannot use someone else's licence number to cover their work. If they're not a licensed employee of a licensed contractor, the licence doesn't cover the job.

Does using a licensed plumber cost more? Sometimes slightly on the hourly rate. In practice, the difference is usually smaller than people expect — and the cost of having unlicensed work redone properly, or being uninsured when something fails, is never smaller than the original saving.

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LTH Plumbing is fully licensed (QBCC 1300686) and insured, serving Yeppoon, Rockhampton, and the Capricorn Coast. Meet Luke — 20+ years on the tools. Call 0455 869 383 or get a free quote.