Same-day drain clearing on the Lower North Shore.
Blocked sinks, toilets and shared stacks cleared in Chatswood: jetted back to full bore rather than punched through, so it stays clear longer than a fortnight.
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Chatswood has 11,129 dwellings, 67.6% of them apartments, plus the busiest food and retail centre on the North Shore. Both facts point the same way. Commercial kitchens and dense residential stacks put more fat into the drainage network here than anywhere else in the area, and fat is what blocks these lines. It cools, it sets on the pipe wall, and it narrows the bore until something small enough to pass yesterday no longer does.
How people live in a suburb decides what blocks its drains. The higher the apartment share, the more of the drainage is shared stack rather than private line, and shared stacks block on what a whole column of kitchens and bathrooms puts into them.
Chatswood sits in the City of Willoughby, postcode 2067.
Local figures sourced from: ABS 2021 Census QuickStats, Chatswood · Chatswood, New South Wales: Wikipedia
A drain rarely stops working without warning. These are the patterns worth acting on here: each one points at a different cause, which is what decides the fix.
Grease build-up narrows the pipe gradually. If the kitchen drain is the one that always goes, fat is the likely cause.
A greasy line holds waste against the wall, and that is what you smell, often weeks before flow is visibly affected.
In a mixed building, a line that struggles in the evening is telling you where the load is coming from.
Fat on the pipe wall, narrowing the bore until something ordinary no longer passes. In the high-rise stock it collects at the base of the stack; behind the commercial strip it is heavier and starts further up the line. The older detached streets are the exception: there it is a root at a joint in pipe laid generations ago.
Most repeat blockages are a pipe problem, not a blockage problem. We look before we quote.
Residential settlement began in 1876 and grew hard after the railway opened in 1890, so the older streets carry some of the oldest house drains in the district: earthenware, jointed, and long past the age where joints stay tight. The high-rise stock is a completely different system: modern PVC stacks that rarely admit roots but hold grease readily. It is one suburb with two entirely separate problems.
Fat does not respond to a plunger and barely responds to a cable, so the order here usually starts with jetting.
Fat coats the pipe wall; a cable bores a hole through it and the line closes over again within weeks. Jetting scours the wall back to full bore, which is the difference between clearing a drain and cleaning it.
Shows whether the line was genuinely cleaned or merely opened: the distinction that decides if you are back in a month.
Less common in the apartment stock, but the older detached streets still see it: a cutting head takes the mass out and restores flow.
Rarely needed for a grease problem alone, but the answer where jetting reveals a damaged section underneath the build-up.
Grease does not respond to a plunger and it does not respond well to a cable: cutting a hole through a fat layer restores flow for a fortnight. High-pressure water jetting scours the pipe wall back to full bore, which is the difference between clearing a drain and cleaning one. On the older detached streets the cause is more often a root at a joint, and that needs a camera first.
Nobody likes ringing for a price and being told “it depends”. Drain-clearing figures below are typical ranges across the Sydney market; the relining rates are Voyager’s own. Either way they are a yardstick to judge a quote against, not a quote.
| Clearing a simple blockage | $150-$400 |
| Clearing a blocked main sewer line | $300-$600 |
| High-pressure jetting | $250-$600 |
| Cutting tree roots from a line | $400-$1,200 |
| CCTV drain inspection | $250-$550 |
| Pipe relining, 100mm sewer, per lineal metre | $450-$800 |
| Pipe relining, 150mm sewer, per lineal metre | $550-$1,000 |
| Pipe relining, setup and establishment | $2,000-$4,000 |
| Pipe relining, typical whole job | $4,000-$10,000 |
Voyager prices by the job, not by the hour, and every job is quoted fixed and in writing before it starts, so the number you approve is the number you pay.
Describe what’s happening at your Chatswood property and we’ll tell you straight, including when the simple clear is the whole job.
In a building, the first thing worth knowing is whether it is only your unit. If a neighbour has it too, the fault is in the shared line and nothing you do inside your own bathroom will change it.
Stop using the fixtures on that line. Every flush and every sinkful adds to what has nowhere to go, and on a main sewer blockage that is what turns a contained problem into an overflow.
Do not pour drain chemicals down it. They rarely clear a real blockage, they make the line unsafe to inspect or work on, and caustic product sitting against an old earthenware joint does the pipe no favours.
If sewage is surfacing, treat it as urgent. That is a health issue, not an inconvenience: keep people and pets away from it and call.
If it is out of hours and getting worse, ring rather than book. Voyager runs a 24/7 line for Chatswood and the rest of the Lower North Shore. More on emergency plumbing.
Grease is the one cause you can genuinely reduce. Put fat in the bin, not the sink. For any tenancy producing it in volume, a maintained grease arrestor and a jetting schedule are cheaper than the callouts they replace.
Storm season finds every drain that was never quite right. Better to know before it rains.
Which fixture, how long, and whether anything is overflowing. That is usually enough to tell how urgent it is.
Scoured back to full bore rather than opened just enough to run, which is what stops it closing over again in a month.
A camera down the cleared line shows whether this was a one-off or a pipe that will do it again.
Including when the answer is that nothing further is needed. A cleared drain with no fault is a perfectly good outcome.
A blocked drain is sometimes the symptom rather than the problem. These cover what comes next:
Voyager covers the whole Lower North Shore. These are the closest to Chatswood:
Most often it is grease, at the scale a commercial centre produces it. A drain that clears easily and blocks again within months is telling you the cause is still in the pipe, which is why we put a camera down a cleared line rather than leaving it at ‘it’s moving again’.
24/7, including nights and weekends: the line for Chatswood and the rest of the Lower North Shore is always answered. Severity sets the order rather than booking time: if sewage is surfacing or a main line has stopped, say so when you call and it goes ahead of routine work.
Across the Sydney market a simple blockage typically runs $150-$400 and high-pressure jetting $250-$600. Grease jobs sit toward the jetting end, because cabling through a fat layer buys weeks rather than years. Those are market ranges rather than Voyager’s price list. In Chatswood, the price comes down to whether the line is residential or carries trade waste. A commercial kitchen line needs jetting rather than cabling, usually outside trading hours, and often repeat visits to stay ahead of it. A home kitchen drain in the same suburb is a different job at a different price. We price by the job, not the hour, and you approve the number before anything starts.
Rarely. Supermarket products are designed for a hair clog in a basin, not a fat layer coating a metre of pipe wall. They open a channel through it at best. They also make the line hazardous to work on afterwards. If a chemical has already gone down, say so before anyone opens it up.
If it is a genuine one-off, something went down that shouldn’t have, clearing it is the whole job. If a kitchen or stack line has closed over before, a camera afterwards is what tells you whether it was actually cleaned or merely opened. We would rather tell you it is fine than clear it twice.
Chatswood is 67.6% apartments, so this comes up constantly. If the line serves more than one lot it is generally common property and the owners corporation’s to arrange; if it serves only your lot it is yours. We establish which before work is authorised and deal with the strata or building manager directly: the plumber page for Chatswood covers the ownership rules in full.
Density and food. Chatswood has 11,129 dwellings, 67.6% of them apartments, plus the busiest food and retail centre on the North Shore, so more fat enters the drainage network here than almost anywhere in the area. Add some of the oldest house drains in the district on the original streets, and you get two separate causes in one suburb.
Yes, and telling them apart matters. They present similarly from the surface and are fixed completely differently. A drain that only misbehaves in heavy rain is usually stormwater or ingress rather than a blockage. A camera settles it in one visit.
Voyager Plumbing was founded by Mathew Veselcic, a licensed plumber, drainer and gasfitter who has held his own NSW contractor licence since December 2016. He is the nominated supervisor on the company licence that covers the work in Chatswood, and personally accountable for it.
Free quote, a fixed price agreed before the work starts, and someone on the end of the phone at any hour.
Voyager Plumbing · NSW Contractor Licence 476657C
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Page reviewed and updated 12 October 2026
