Published by JSR Electrical for Mackay homeowners. Not legal advice. Electrical and gas work must be carried out by appropriately licensed tradespeople. This page was not reviewed by a named individual expert.
Water where it should not be — under a sink, in a ceiling cavity, or showing up only as a higher bill — needs a calm safety-first response. Queensland rules limit what unlicensed people may legally do on plumbing systems; this page focuses on safe isolation and when to call.
Visible burst vs hidden leak
A burst flexible connector or cracked pipe is obvious: isolate water if you can reach a known valve safely, keep clear of electrics, and call a licensed plumber. Hidden leaks may show as ceiling stains, soft plaster, mouldy cupboards, or unexplained meter movement with all taps off.
Water and electricity
Do not stand in water to operate switches. If water is near a switchboard or power points, treat it as an electrical hazard — see our electrical warning signs guide and call for licensed help. Critical situations may need both a plumber and an electrician.
What QBCC says homeowners may (and may not) do
QBCC’s plumbing guide lists only a short set of minor tasks that do not require a licence (examples include certain shower heads and jumper washers). Replacing a tap and most other plumbing or drainage work must be performed by an appropriately licensed person. Engaging a licensed contractor is the practical way for owners to meet their duty to keep plumbing compliant and in good condition.
Roof water vs internal plumbing
Stains that appear only in heavy rain may involve gutters, flashings or stormwater paths. Mackay Regional Council stormwater guidance emphasises owner maintenance of gutters, downpipes and approved discharge points. Internal leaks that track with shower or laundry use point elsewhere. JSR plumbing services cover leak repairs, detection and roof/gutter work — describe the pattern when you request a quote.
Sources
- QBCC — Home Owners Guide to Plumbing Matters (May 2025)
- Mackay Regional Council — Plumbing approvals
Meter checks without turning into a plumber
If you know how to read your water meter and can do so safely, note the reading with all taps and ICEs off, wait 15–30 minutes without water use, and check again. Movement can indicate a leak on the property side. This observation helps the plumber; it is not a complete leak-detection method and does not locate the fault under a slab.
Ceilings and structural caution
A bulging, waterlogged ceiling can collapse. Do not poke the centre. Catch drips with a bucket if the area is safe to enter, move bedding and electronics, and call for help. Photographing the pattern during rain versus during shower use is genuinely useful triage.
Insurance and documentation
Many policies ask for prompt mitigation — isolation, photos, invoices from licensed trades. Keep QBCC licence checks in mind when engaging anyone: QBCC publishes how to verify a plumbing licensee. We omit specific licence numbers for JSR plumbing on this page until confirmed for publication.
Prevention habits
Know where your meter and major isolation valves are before an emergency. Replace perished washing-machine hoses proactively using appropriately skilled help if the task exceeds homeowner-permitted work. Clear gutters ahead of the wet season so roof water does not masquerade as an “internal” leak along cornices.
Related reading: blocked drains in Mackay and hot water system problems.
Shared walls in duplexes and units complicate leak attribution. Notify the body corporate or neighbour early if water may be crossing a boundary, and avoid opening common-property walls yourself. Licensed investigation protects both fabric and relationships.
After the plumber leaves
Ask for photos of the failed fitting, the isolation point used, and any walls opened. Keep invoices. If mould appears later, treat it as a separate remediation conversation with appropriate professionals — plumbing repair stops the water; it does not automatically remediate contaminated linings.
For recurring slab or underground leaks, discuss detection methods (acoustic, tracer, thermal) with the licensed plumber rather than digging exploratory trenches. Recheck the meter after repairs to confirm the private side has stabilised.
If roof plumbing was involved, schedule a clear-sky follow-up after the next heavy rain to confirm the stain has dried and not returned — that single check catches incomplete stormwater fixes early.
Same-day attendance depends on weather and bookings; describe urgency clearly when you call so the office can prioritise active flooding over slow stains. Keep the phone number (07) 4863 0508 saved for after-hours bursts.