No-dig pipe repair on the Lower North Shore.
Cracked or root-damaged pipe repaired in place in Chatswood West — sealing the line against the ground rather than digging it out of it.
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Chatswood West straddles the Lane Cove River, taking runoff from the ridges into the valley flats, and a great many of its drainage problems are ingress rather than obstruction — storm and ground water entering the sewer through an open joint. Clearing that line achieves nothing. A liner seals the pipe against the ground along its whole length, which addresses the actual fault rather than its symptom.
Open joints taking storm and ground water, often along a long run rather than at a single point. Where two pipe materials have been spliced during an extension, the join is a common failure and a frequent finding.
Because the ground here is the problem, and digging into it makes it worse. This is the part of a drainage repair people do not price until an excavator is already on site.
Large blocks with long private runs and established garden planting, on properties where the line frequently crosses lawn, driveway and garden before it reaches the connection. The more of the run that has something over it, the worse a trench compares.
A liner goes in through an opening that already exists. Nothing above the pipe has to move.
Valley flats and the ridges running down to them, on a suburb that takes water from above. Excavating in ground that is periodically saturated is slower, needs more support and backfills less predictably — all of which shows up in the price and none of which applies to a liner.
Chatswood West sits in the City of Willoughby and City of Ryde, postcode 2067.
Local figures sourced from: ABS 2021 Census QuickStats — Chatswood West · Chatswood West, New South Wales — Wikipedia
Older river-valley properties commonly drain through earthenware; newer builds and renovations sit on PVC, and long runs frequently carry both spliced together where someone extended. The join between two materials is a common failure point and a good relining candidate.
No trench, no spoil, and nothing above the pipe disturbed. The whole job runs through an existing access point.
The line is inspected end to end so the damage is located and measured. Nothing is quoted from the surface.
Roots are cut out and the pipe wall is jetted back to bare material — a liner will not bond to a coated pipe.
A resin-saturated liner is drawn into position through an existing access point and inflated against the host pipe.
The resin hardens in hours rather than days, forming a new pipe inside the old one with no joints for roots to re-enter.
Any branch lines are cut back open robotically, and a final camera pass confirms the result.
Not every damaged pipe should be relined, and we will say so. These are the cases where it genuinely wins here.
Sealing the line end to end is the fix; clearing it is not.
Trench length is what makes excavation expensive here.
The junction of two materials is where these runs fail.
Relining costs more per metre than excavation. It is usually cheaper overall, and this is why:
| Dig and replace | Relining | |
|---|---|---|
| Excavation | Trench the full length, remove and replace the pipe, backfill | None — the work runs through an existing access point |
| What comes up | Lawn, garden, paving, driveway or slab above the line | Nothing |
| Time on site | Days on a long or deep run | Usually one day for a typical run |
| Reinstatement | Priced separately and often the larger half of the bill | Not applicable |
| Result | New pipe, with joints | A jointless liner inside the host pipe |
| Design life | Depends on material and bedding | 50 years on a correctly installed liner |
The per-metre comparison is the one that misleads. Excavation quotes routinely exclude spoil removal and reinstatement, which is where a dig job gets expensive — and on some properties the reinstatement is simply not possible at any price.
These are typical ranges across the Sydney market — not Voyager’s price list, but a realistic yardstick to judge any quote against, including ours.
| Pipe relining, per lineal metre | $450 – $800 |
| Pipe relining, typical whole job | $4,000 – $10,000 |
| Patch repair, single damaged section | $1,500 – $3,000 |
| Junction reinstatement | $300 – $600 |
| Excavate and replace, per metre | $300 – $600 |
| Driveway reinstatement after a dig job, per sqm | $100 – $200 |
| CCTV drain inspection | $250 – $550 |
| Cutting tree roots from a line | $400 – $1,200 |
Voyager prices by the job, not by the hour, so the number you approve is the number you pay. A camera survey happens before any figure is given — a quote for relining that has not looked down the pipe is a guess.
Most Chatswood West properties that ring about relining need a camera first. We will tell you straight — including when clearing the line is the whole job.
A correctly installed liner carries a 50-year design life, and it cures in hours rather than days — so the property is back in normal use the same week rather than the same month.
Sealing the line end to end matters more here than a patch would. On a property taking runoff from the ridges above, a single sealed section still leaves the rest of the run open to the same water.
Roots come back through joints. A liner has none.
Voyager covers the whole Lower North Shore. These are the closest to Chatswood West:
No. That is the whole point of it. The liner is drawn in through an existing access point — usually an inspection opening or shaft already on the property — and cured in place against the old pipe. On valley blocks it means no trench in ground that is periodically wet — which is the difference between a predictable job and one that finds problems as it goes.
Across the Sydney market, relining runs about $450–$800 per lineal metre, with a typical whole job landing between $4,000 and $10,000 and a single-section patch around $1,500–$3,000. Those are market ranges rather than Voyager’s price list. Run length across large blocks, and whether the ground is periodically saturated where the fault sits. Wet ground makes a trench slower, needs more support and backfills less predictably — all of which is priced.
Per metre, no — excavation is cheaper per metre. Overall it usually is. Excavating ground that is periodically saturated is slower, needs more support and backfills less predictably, and all of that is priced. On some properties the reinstatement is not possible at any price, which settles it entirely.
A correctly installed liner carries a 50-year design life. It outlasts what it replaced because it has no joints along its length — and joints are where roots get in, where ground movement opens a gap, and where old earthenware fails first. And because it is continuous, it keeps ground and storm water out along the whole run rather than at the point that failed.
A typical residential run is a single day on site, and the resin cures in hours rather than days. The camera survey happens first, either on the same visit or beforehand — nothing about a relining job should be quoted from the surface.
Most can, but not all — and we will say so rather than sell you something that will not work. A pipe that has collapsed completely, or lost so much of its shape that there is nothing left to line against, needs replacing. In Chatswood West the host pipe is usually a good candidate: open joints taking storm and ground water, often along a long run rather than at a single point. Where two pipe materials have been spliced during an extension, the join is a common failure and a frequent finding.
Yes, and in Chatswood West that is frequently the actual job. The suburb takes runoff from the ridges down into the Lane Cove River valley, and water enters the sewer through open joints in the private line. A liner is continuous, so it seals the run against the ground along its whole length. Clearing the drain does nothing for this — the pipe is not blocked, it is leaking.
Through that section, yes. Roots enter at joints and cracks; a liner is continuous and seals them, so the entry point is gone. Roots can still find a different fault further along an old line, which is why the survey covers the whole run rather than only the section that failed.
Camera survey first, a fixed price agreed before the work starts, and no excavation.
Voyager Plumbing · NSW Contractor Licence 476657C
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Page reviewed and updated 20 August 2026
