Signs you need emergency plumbing services
Not every leaking tap is an emergency, and not every slow drain is safe to ignore. Here is how to tell the difference — and what to do in the first 60 seconds while you wait for a plumber.
- Gas leak (smell): don't flip any switches. Open doors and windows, get everyone outside, call 131 709 (Jemena gas emergencies) or 000.
- Burst pipe / flooding: turn off the mains water at the meter out front, then switch off electricity at the fuse box if water is near power points.
- Sewage backup: stop using all taps and toilets, keep kids and pets out of the affected area.
- Then: call a 24/7 plumber — on the Northern Beaches, 1300 758 623.
- • Gas smell, burst pipe, sewage backup, no water at all, or water near electricity = call a 24/7 plumber now.
- • Dripping tap, one slow drain, or a running toilet = safe to wait until business hours.
- • Everyone should know where the water mains shutoff and the electricity main switch are. Find them tonight, not during the emergency.
- • Most emergency callouts we see across the Northern Beaches could have been smaller jobs if the homeowner had turned off the water at the meter within the first 2 minutes.
- • Typical after-hours callout on the Northern Beaches: $180–$250 initial attendance plus work done. Water damage from a one-hour delay typically costs $2,000+.
5 clear emergency signs (don't wait)
If any of the following are happening, stop reading the rest of this article and call a plumber. The fastest way to a small bill is acting early.
1. You smell gas (rotten-egg odour)
Natural gas is mixed with mercaptan so you can smell a leak. Do not operate any electrical switch, do not light anything, do not use the doorbell. Open doors and windows, get everyone outside, and call Jemena on 131 709 before you call a plumber.
2. Water is visibly pouring or pooling
A burst pipe, split flexible hose under a sink, or failed hot water tank can release 30+ litres a minute. Locate your water meter (usually near your front boundary or in a pit at the footpath) and close the main tap clockwise. In older Mosman and Manly homes the tap can be stiff — a shifter from the toolbox works if your hand doesn't.
3. Raw sewage is backing up indoors
Sewage coming up from a floor waste, shower base, or laundry trough is a health hazard. It means the sewer line to the street is blocked or collapsed. Stop using all water in the house — every flush makes it worse — and call a plumber with drain-clearing equipment. Do not use household drain cleaner.
4. Zero water from any tap
If no fixture in the house has water and your neighbours are fine, you likely have a broken main line between the meter and the house, or a failed isolation valve. Overnight, this can escalate into undermining your foundation — it is an emergency.
5. Water meets electricity
If water from a leak is spreading toward a power point, light switch, or appliance, switch off the main at the fuse box immediately, then turn off the mains water. Do not enter the affected room until both are off.
What can wait until morning
These problems are annoying but they are not emergencies. You will pay the normal-hours rate if you wait, and you will not cause additional damage.
- A single dripping tap — lose a few litres overnight, not a flood.
- One slow-draining sink — as long as the rest of the house drains normally, it is a localised trap issue, not a sewer blockage.
- A running toilet — annoying and wasteful, but turn off the isolation valve behind the toilet and it stops entirely.
- Cold water only — if hot water isn't working but the unit isn't leaking, you can safely wait. Unless it is a gas unit making unusual noises, in which case turn the gas isolation valve off.
- A squealing or shuddering pipe — usually trapped air or a loose bracket. Real, but not a damage risk today.
The first 60 seconds of any plumbing emergency
The difference between a $300 fix and a $5,000 insurance claim is usually what you do in the first minute. Every adult in the house should know these three locations before anything happens:
Water mains tap
Usually at the front boundary in a green or black plastic pit, sometimes near the driveway. Turn clockwise to close. Test it once so you know it moves.
Electricity main switch
Inside the main switchboard, usually in the garage, laundry, or hallway. Flip the largest switch at the top to "off".
Gas isolation valve
At your gas meter, usually next to the water meter. Quarter-turn the lever so it sits crossways to the pipe.
What we actually respond to across the Northern Beaches
A rough breakdown of our after-hours callouts across Mosman, Manly, Dee Why, Brookvale, and Frenchs Forest — so you know what "real" emergency work looks like:
- ~40% burst flexible hoses under sinks and vanities — usually 10+ year old braided hoses that finally fail. Shut off the water, replace the hose, done in under an hour.
- ~25% blocked or overflowing sewer lines — most common in older homes with large trees. Clearing with an electric eel or water jetter, then a CCTV inspection. See our guide on preventing blocked drains.
- ~15% hot water system failures — tank leaks, gas ignition faults. If yours is 10+ years old, see our comparison of gas vs electric hot water before you replace.
- ~10% toilet / cistern failures — cracked cistern, seized inlet valve, overflowing bowl.
- ~10% gas leaks — always a same-night fix. Never defer.
Honest cost expectations
After-hours and weekend callouts attract a higher rate than business hours. On the Northern Beaches in 2026 expect $180–$250 initial attendance plus parts and labour for the actual fix. That feels steep when the leak seems small, but a one-hour delay on a burst flexible hose under a kitchen sink typically causes $2,000 of floor and cabinet damage. Insurance covers the damage but not your time, your excess, or the weeks of drying and repair.
If the issue turns out to be non-urgent when we arrive, we will tell you and you only pay the normal-hours rate for the visit.
Key takeaway
Treat gas smells, burst pipes, sewage backup, and any water near electricity as true emergencies — act in the first 60 seconds and call a 24/7 plumber. Dripping taps, running toilets, and one slow drain can wait until morning. Knowing where your water main, gas valve, and electricity switch are, before an emergency, is the single best preparation you can do.