Voyager Plumbing blocked drain specialist at the service truck

Blocked drains · North Shore

Blocked Drains North Shore

Cleared properly, not just pushed through.

A blocked drain rarely announces itself. It starts as a sink that empties a bit slower than it used to, a gurgle from the shower when the washing machine drains, or a smell near an outdoor grate that comes and goes. By the time water is backing up over a floor waste, the blockage has usually been building for a while.

Available 24/7 across the North Shore · No callout fee on eligible jobs

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24/7 emergencySomeone answers at 3am
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No callout feeOn eligible jobs
Blocked drains

Signs of a blocked drain worth acting on early

Voyager clears blocked drains across the North Shore, 24 hours a day. And where the same drain keeps blocking, we’d rather find out why than keep coming back to clear it.

  • Water draining slowly from a sink, basin, shower or bath
  • Gurgling from a drain when another fixture is used
  • A smell around a floor waste, outdoor grate or gully trap
  • Water pooling near an outside drain after rain
  • A toilet that rises before it falls, or won’t clear on one flush
  • More than one fixture playing up at once — often a sign the problem is in the main line, not the fixture

That last one matters. A single slow basin is usually local. Several fixtures misbehaving together generally points further down the system.

A Voyager plumber unloading drain clearing equipment from the van
Blocked drains

What causes blocked drains on the North Shore

The North Shore’s older housing stock and heavy tree cover shape the pattern:

  • Tree roots. The most common cause of recurring blockages in the older suburbs. Much of the North Shore’s sewer network is earthenware laid before the 1970s, and joints of that age are exactly where roots find a way in — a hairline crack or a loose joint, and they grow toward the water.
  • Grease and fat building up in kitchen lines over years.
  • Hair and soap in bathroom wastes.
  • Wipes and sanitary products — including the ones sold as flushable.
  • Leaf litter and silt in stormwater lines and outdoor grates, especially after a wet stretch.
  • Broken, sagging or misaligned pipes — where the blockage is a symptom and the pipe is the actual problem.
A Voyager plumber with the high-pressure water jetting hose reel
A Voyager plumber showing a customer a fixed upfront price quote on a tablet

Not sure what you’re dealing with?

Describe what’s happening and we’ll tell you straight — including when the simple fix is the whole job.

Blocked drains

How Voyager clears a blocked drain

Find out where it is

The plumber works out which line is affected and how far along. Where the cause isn’t obvious, or the drain has blocked before, a CCTV drain camera inspection shows what’s actually happening in the pipe.

Fixed price before the work

The recommended work and the price are explained and agreed up front. Voyager charges by the job, not by the hour — so a difficult clear doesn’t quietly become a bigger bill.

Clear it

Depending on the blockage, that may mean a drain machine, an electric eel, or high-pressure water jetting — also called hydro jetting — for roots, grease and compacted debris. A blockage sitting in the S-bend or the trap under a fixture is a different, smaller job to one out in the main sewer line.

Check it’s actually gone

The line is tested after clearing. Where a camera has been used, you get to see the state of the pipe — including anything that’s likely to cause the next blockage.

Tell you what’s next, if anything

If the camera shows cracked pipe, root intrusion or a bad joint, you’ll be told plainly, along with what fixing it would involve. Clearing buys time; relining or repair is what stops the cycle. There’s no obligation to do the second thing on the spot.

A Voyager plumber running a high-pressure jetting hose at a North Shore house
Blocked drains

If your drain is overflowing right now

Sewage backing up into a shower or over a floor waste is not a wait-until-Monday problem. Voyager runs 24/7 emergency callouts across the North Shore.

Before the plumber arrives, where it’s safe:

  • Stop using water in the property — every flush and every load adds to what’s backing up
  • Keep people and pets away from the affected area
  • Move what you can out of the way
  • Don’t pour drain chemicals in on top of a standing blockage. They rarely shift a real one and they make the space hazardous for whoever has to work in it
Voyager Plumbing truck signage listing CCTV inspections, pipe location and jet blasting
Blocked drains

Why the same drain keeps blocking

If a drain has been cleared more than once in a couple of years, the blockage is a symptom. Roots don’t return to a sound pipe — they return through the fault that let them in. Clearing removes what grew; it doesn’t close the door.

That’s what the camera is for, and it’s why Voyager would rather show you the pipe than sell you the same clear every eighteen months. Where the line is structurally sound, clearing is the whole job and that’s the end of it.

A Voyager plumber showing a customer a fixed upfront price quote on a tablet
Blocked drains

What clearing a blocked drain costs

Across Sydney, clearing a straightforward single-fixture blockage typically costs $150–$400. Jetting a main line runs $250–$600, cutting out tree roots $400–$1,200 depending on how established they are, and a CCTV camera inspection $250–$550 — often bundled into the clearing job rather than billed separately. After-hours emergency work across the market usually carries a 50–100% loading.

The job Typical Sydney range
Clearing a single blocked fixture $150 – $400
High-pressure water jetting a main line $250 – $600
Cutting tree roots out of a sewer line $400 – $1,200
CCTV drain camera inspection $250 – $550

Voyager prices by the job, not the hour — a fixed price agreed before the work starts, so wherever your job sits in those ranges, you know your number before anyone touches a drain. Free quotes, and no callout fee on eligible jobs, subject to Voyager’s current terms and eligibility requirements.

A Voyager plumber unloading drain clearing equipment from the van
Blocked drains

Frequently asked questions

How quickly can someone come out?

Voyager runs 24/7 for urgent blockages, including overflows and sewage backing up. Availability on any given day depends on where crews are, but urgent jobs on the North Shore are prioritised. Call 0485 028 787 and describe what’s happening.

What does clearing a blocked drain cost?

Across Sydney, a straightforward blockage typically costs $150–$400 to clear, with jetting a main line running $250–$600 and root cutting $400–$1,200. Voyager prices by the job, not the hour — so your price depends on the blockage and where it is, not on how long the plumber ends up standing there. You get a fixed price before the work starts, a free quote, and no callout fee on eligible jobs, subject to Voyager’s current terms and eligibility requirements.

Will drain cleaner from the supermarket fix it?

Occasionally, on a minor build-up of hair or soap. On a real blockage — roots, a solid obstruction, compacted grease — it generally doesn’t, and it leaves a caustic pool sitting in the line that’s hazardous for whoever opens it up next. Worth telling the plumber if you’ve used any.

Do I need a camera inspection every time?

No. For a straightforward one-off blockage, clearing it is the job. A camera earns its place when the drain has blocked before, when more than one fixture is affected, or when the cause isn’t obvious — because those are the cases where clearing alone tends not to hold. When it is needed, it adds around half an hour on site, not a second visit.

Who pays in a strata building?

Usually the owners corporation pays when the blockage is in a shared line, and the lot owner pays when it’s inside their own lot — the split turns on where the fault actually sits, which varies by building. Voyager works with strata managers across the North Shore and can report on what was found and where, which is usually what the determination turns on.

Is a blocked stormwater drain the same thing?

Different system, different causes — usually leaves, silt and debris rather than what goes down an indoor waste. See stormwater drains.

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Page reviewed and updated 19 August 2026