You’ve booked a plumber, taken the morning off work, and now you’re wondering: am I going to be sitting around all day, or will this be sorted by lunch? Fair question. Nobody wants to lose a whole day waiting on a job that should’ve taken an hour.
The honest answer is that it depends on the job. A dripping tap is a different beast to a collapsed sewer line. But most common household plumbing jobs follow fairly predictable timeframes, and a good plumber should be able to give you an honest ETA when you call.
TL;DR: typical plumbing job timelines
- Leaking tap: 30 minutes to 1 hour
- Toilet repair: 30 minutes to a couple of hours
- Blocked drain (standard clear): 1 to 2 hours
- CCTV drain inspection: 30 minutes to 2 hours
- Burst pipe repair: 1 to 3 hours for most accessible jobs
- Hot water system replacement (like-for-like): 2 to 4 hours
- Hot water system swap or upgrade: half a day to a full day
Those are realistic working estimates for a standard residential job in a Sydney home. Older houses, tricky access, and unexpected damage can push any of them out. Here’s how each one breaks down.
Leaking taps and toilet repairs: the quick ones
Most leaking taps are a fast fix. Swapping a worn washer, replacing a cartridge, or sorting a dripping spout is usually a 30 minute to one hour job once the plumber is on site. If the tap body itself is corroded or the job turns into a full tapware replacement, allow a bit longer.
Toilets are similar. A running cistern, a faulty inlet valve, or a worn flush mechanism is often done within the hour. A full toilet swap takes a little longer because the old pan has to come off and the new one has to be set, sealed, and tested for leaks. Speaking of which, leaks aren’t always obvious: a simple dye test in the cistern can confirm whether a toilet is quietly leaking into the bowl before you spend money on parts you don’t need.
These small jobs are exactly the kind of thing worth booking in early rather than ignoring. A slow drip wastes water and money, and a constantly running toilet can add up fast on your bill.
Blocked drains: usually a same-visit fix
A standard blocked drain is normally cleared in one visit. Clearing a blockage and running a quick check typically takes one to two hours, depending on how bad the blockage is and where it sits in the system.
If your plumber needs to find out exactly what’s going on, a CCTV drain inspection gets a camera into the pipe to see the real cause. Drain cameras let plumbers quickly diagnose the cause of a problem instead of guessing, which saves digging and saves you money. The inspection itself is quick: most CCTV drain surveys for houses take between one and two hours, and simpler ones can be wrapped up in around 30 minutes to an hour.
Where it stretches out is when the camera finds the real culprit. Tree roots in old clay pipes around Hurstville, Bexley, and Kogarah are a common one in this part of Sydney. A CCTV inspection can show whether a blockage is caused by tree roots, grease, cracked pipes, or a foreign object, and that result decides whether you’re looking at a quick clear or a bigger repair like pipe relining or excavation. Those are separate, scheduled jobs.
When a blocked drain takes longer
- Recurring blockages caused by root intrusion or a partial pipe collapse
- Older pipework that’s already cracked or out of alignment
- Blockages deep in the main line rather than close to a fixture
- Units and apartments where access points are shared or awkward to reach
Burst pipes: depends on where it is
A burst pipe is the one job where the answer really swings on location and access. For a pipe the plumber can get to easily, repairing a leaking water pipe generally takes one to two hours. The variables are the severity of the leak and how complex your plumbing setup is.
A pipe inside a wall, under a slab, or buried in the yard is a different story. Easy-to-reach pipes can be done in 30 minutes to a few hours, while hard-to-reach ones can run several hours or even into an extra day. The plumber has to locate it, get access, and then make a proper repair, not just a band-aid.
If a pipe bursts and you’re waiting on someone to arrive, the single most useful thing you can do is turn off the water at the mains. After that, open a few taps to drain pressure out of the system, and keep towels and a bucket handy. Don’t go cutting into walls or pulling pipes apart yourself. Leave the actual repair to a licensed plumber. If water is anywhere near electrical fittings or a meter board, stay clear of it and call for help straight away. This is the kind of job our 24/7 emergency plumbing service exists for.
Hot water systems: plan for half a day
If your hot water’s gone and the unit needs replacing, set aside a decent block of time. A licensed plumber should have a new tank installed and working within two to three hours barring complications. Allow up to four hours to be safe once you factor in draining the old unit, fitting the new one, connecting everything, testing, and cleaning up.
It takes longer when you’re not doing a straight like-for-like swap. Switching from electric to gas, or moving to a continuous flow (tankless) system, means extra work on wiring, gas lines, or venting. That kind of upgrade can run to most of a day. Older homes can also throw up surprises: corroded valves or brittle old pipework sometimes need to be replaced before the new unit can go in, which adds time.
If it’s a repair rather than a full replacement, you’re often looking at a shorter visit. Many hot water repairs, like sorting a faulty valve or element, fall in the one to three hour range, though sourcing a part for an older unit can mean a return visit.
What actually makes a job take longer
Across every job type, the same handful of things stretch the timeline out:
- Access: tight cupboards, under-house crawl spaces, roof-mounted gear, and shared apartment risers all add time.
- Old pipework: a lot of homes around the St George area have aging galvanised or clay pipes that crumble when touched, turning a small job into a bigger one.
- Hidden damage: what looks like one problem can reveal another once the plumber opens things up.
- Parts: a quirky or older fixture might need a part that isn’t on the van.
- Permits or compliance work: some jobs need to be brought up to current standards, which is non-negotiable and worth getting right.
A straight-talking plumber will flag these possibilities upfront rather than springing them on you halfway through. If something’s going to take longer or cost more than the original quote, you should hear about it before the work happens, not after.
How to get an accurate ETA before anyone arrives
The clearer you are on the phone, the better the estimate you’ll get. When you call, try to describe:
- What’s actually happening (dripping, no hot water, water on the floor, slow drain)
- Where it is in the house and whether it’s easy to get to
- The age of the home or the fixture if you know it
- Whether it’s getting worse or holding steady
That handful of details lets us bring the right gear and give you an honest time window, instead of vague tradie talk. For a closer look at what to ask before you commit, our guide on questions to ask a plumber before you hire is worth a read.
The bottom line
Most everyday plumbing jobs in a Sydney home are sorted in a single visit, often within a couple of hours. Taps and toilets are quick, blocked drains and burst pipes usually fall in the one to three hour range, and a hot water replacement is closer to half a day. The big variables are access, the age of your pipes, and whatever’s hiding behind the wall.
If you’ve got a job in Kogarah, Hurstville, Rockdale, Cronulla, or anywhere across the St George area and Sutherland Shire and you want a real ETA before you commit, tell us what’s wrong and we’ll give you an honest timeframe and a fixed quote before any work starts.