No-dig pipe repair on the Lower North Shore.
Cracked or root-damaged pipe repaired in place in Kirribilli — no excavation, so heritage fabric, stonework and listed streetscapes stay exactly as they are.
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Kirribilli is 86.8% apartments in half a square kilometre, on land first granted in the 1790s with Georgian and Gothic-revival houses built through the 1830s, ’40s and ’50s. Modern buildings here frequently connect into infrastructure far older than they are, and much of the surrounding fabric is heritage listed. Relining addresses the old pipe without touching either the building above it or the streetscape around it.
Modern stacks meeting much older shared infrastructure. On land granted in the 1790s with houses from the 1830s onward, the camera regularly finds nineteenth-century pipe still carrying twentieth-century buildings.
Because what sits above the pipe cannot be replaced. This is the part of a drainage repair people do not price until an excavator is already on site.
Heritage buildings, listed streetscape and a dense harbourside pocket with almost no spare ground. There is very little in Kirribilli that can be opened up without an approval process attached to it.
A liner goes in through an opening that already exists. Nothing above the pipe has to move.
A compact half square kilometre three kilometres from the CBD, with limited garden planting and no room for plant. Access and approvals are the constraints, not the soil.
Kirribilli sits in the North Sydney Council, postcode 2061.
Local figures sourced from: ABS 2021 Census QuickStats — Kirribilli · Kirribilli, New South Wales — Wikipedia
Nineteenth-century pipe under twentieth-century plumbing is a genuine condition here rather than a figure of speech. Modern stacks meeting very old shared infrastructure is the characteristic finding.
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.
Restricted works, and nothing visible changes.
Reached without opening either.
A liner needs an access point, not a work zone.
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 Kirribilli 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.
Lining old shared infrastructure under a modern building brings the weakest part of the system up to the standard of the newest, which is rarely true of a patch.
Roots come back through joints. A liner has none.
Voyager covers the whole Lower North Shore. These are the closest to Kirribilli:
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. It means heritage buildings and a listed streetscape are untouched, and a compact site with nowhere to put a work zone does not need one.
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. Heritage restriction and access in a dense harbourside pocket with no spare ground. Approvals rather than soil are what make conventional repair slow here.
Per metre, no — excavation is cheaper per metre. Overall it usually is. On a heritage property the comparison often does not arise at all — where excavation is restricted there is no cheaper alternative to price against. 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. It also bridges offset joints permanently, which matters where the ground will keep moving and the surface above cannot be disturbed again.
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 Kirribilli the host pipe is usually a good candidate: modern stacks meeting much older shared infrastructure. On land granted in the 1790s with houses from the 1830s onward, the camera regularly finds nineteenth-century pipe still carrying twentieth-century buildings.
Usually yes, and in Kirribilli it is a common situation. The land was granted in the 1790s and built on from the 1830s, so twentieth-century apartment buildings here frequently connect into considerably older shared infrastructure. A liner is installed through an existing access point, so neither the modern building nor the heritage streetscape around it is disturbed.
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
