Licensed local plumbers, on the Lower North Shore.
Blocked drains, hot water, leaks, gas and emergency repairs for Castlecrag homes, businesses and strata — with a fixed price agreed before the work starts.
No callout fee on eligible jobs · Free quotes
Planned from 1921 by Walter Burley Griffin and Marion Mahony Griffin, who lived here from 1925. Its roads were laid to follow the natural contours of the land rather than a grid.
The most uniformly detached suburb in this group — 97.4% separate houses. Griffin’s original homes were built from concrete block and stone found on site, and heritage controls now exist specifically to preserve that character.
Streets that follow contours rather than a grid mean long private drainage runs crossing sloping, rocky ground. Getting machinery to a fault is often the hardest part of the job.
These jobs come up here more than they come up elsewhere. They follow from what Castlecrag is built from, when it was built, and what it sits on.
Castlecrag’s Griffin Conservation Area is one of twelve Heritage Conservation Areas in the Willoughby LGA, protected under Willoughby LEP 2012 and the Willoughby DCP. External works and excavation are more constrained here than in a standard residential street, which shapes what a repair can practically involve.
Griffin laid the roads to follow the land rather than a grid. It is beautiful and it means private drainage takes long, indirect paths across sloping, rocky ground — with limited room to bring machinery to any point along it.
The Griffins planted natives deliberately and the bush still runs right up to the houses. Mature native root systems and older drainage are a reliable combination.
Most repeat blockages are a pipe problem, not a blockage problem. We look before we quote.
Every job below is handled by a licensed plumber, quoted before it starts, and covered by the lifetime labour warranty on eligible work.
Cleared properly, with a camera down the line to find out why it blocked.
Fix a cracked or root-damaged pipe without digging up the garden.
Burst pipes, sewage overflows and gas faults — 24 hours a day.
Repairs and replacements across electric, gas, solar and heat pump.
Find a hidden leak before anyone opens a wall or a slab.
Licensed gas work — appliances, new lines and suspected faults.
See what is actually in the pipe instead of guessing at it.
Isolate, repair and make good — usually the same day.
Get roof and surface water away from the house properly.
Describe what’s happening at your Castlecrag property and we’ll tell you straight — including when the simple fix is the whole job.
What a job looks like here depends on what the suburb is built from and built on. Start with how people actually live in it:
Sandstone peninsula country falling towards Middle Harbour, with contour-following streets and bushland throughout.
The Griffins planted native trees and landscaped the area deliberately, and mature bushland still runs right up against the built areas.
Castlecrag sits in the City of Willoughby, postcode 2068. Work needing a compliance certificate is lodged the same way across the LGA.
Local figures sourced from: ABS 2021 Census QuickStats — Castlecrag · Castlecrag, New South Wales — Wikipedia
Nobody likes ringing for a price and being told “it depends”. These are typical ranges across the Sydney market — not Voyager’s price list, but a realistic yardstick to judge any quote against, including ours.
| Drains and pipes | |
|---|---|
| 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, per lineal metre | $450 – $800 |
| Pipe relining, typical whole job | $4,000 – $10,000 |
| Excavate and replace, per metre | $300 – $600 |
| Repairs | |
| Leaking tap — washer or cartridge | $120 – $250 |
| Burst pipe, accessible | $250 – $500 |
| Burst pipe, underground | $800 – $2,500+ |
| Hot water, leaks and emergencies | |
| Hot water repair (element, thermostat, anode) | $150 – $550 |
| Hot water replaced, supplied and installed | $1,200 – $3,500 |
| Water leak detection | $250 – $600 |
| After-hours emergency attendance | $400 – $900 |
Hot water replacement above is supplied and installed — labour-only quotes look cheaper because they are not the same thing. And relining costs more per metre than digging, but that comparison ignores excavation, spoil removal and putting your driveway back, which is where dig jobs get expensive.
Voyager prices by the job, not by the hour, so the number you approve is the number you pay.
Castlecrag is 97.4% freestanding houses, so the ownership question here is usually straightforward — and worth knowing, because it decides who pays.
You are responsible for the wastewater pipes between your property and the point of connection to the network. Sydney Water is responsible for the main that carries waste away from multiple properties. Most of the pipe that can actually fail on a block like yours is yours to maintain.
On a detached block the fault can be anywhere along a long private run, so locating it accurately is most of the job. A camera and a pipe locator turn a whole-yard excavation into a targeted repair.
Some problems wait for a booking. Burst pipes, sewage backing up, a hot water unit emptying itself into the floor and any suspected gas fault do not.
Voyager runs a 24/7 line for Castlecrag and the rest of the Lower North Shore. When you call, say what’s happening, where it is, and whether water, sewage or gas is involved — that’s what decides how fast someone needs to be there.
Before we arrive: turn off the affected supply if it’s safe to do so, and move what you can away from the water. Don’t pour drain chemicals down a blocked line — it makes the pipe unsafe to inspect and rarely clears the blockage.
Narrow contour-following streets and heritage-area constraints make this one of the harder suburbs to bring machinery into. We work out access before quoting rather than after, because it genuinely changes what the job involves.
Castlecrag’s Griffin Conservation Area is one of twelve Heritage Conservation Areas in the Willoughby LGA, protected under Willoughby LEP 2012 and the Willoughby DCP. Where a repair involves excavation or visible external work, that is a real constraint on method — and a reason no-dig repair is often the only sensible option. Willoughby heritage conservation areas
We assess access before quoting rather than discovering it on the day. On constrained sites it often decides which repair method is realistic, and that changes the price.
Storm season finds every drain that was never quite right. Better to know before it rains.
A short call is usually enough to tell whether it’s urgent, and what’s likely to be involved.
Where it matters, that means a camera down the line rather than a guess from the surface.
Priced by the job, not the hour. You approve it before anything starts.
You get told what caused it and whether anything else needs attention — including when the answer is nothing.
Voyager covers the whole Lower North Shore. These are the closest to Castlecrag:
Voyager runs 24/7 for urgent work in Castlecrag. How fast depends on where crews are at the time, but genuine emergencies — burst pipes, sewage overflows, suspected gas — are prioritised over booked jobs. Call 0485 028 787 and describe what’s happening.
Heritage controls on what can be dug up. Castlecrag’s Griffin Conservation Area is one of twelve Heritage Conservation Areas in the Willoughby LGA, protected under Willoughby LEP 2012 and the Willoughby DCP. External works and excavation are more constrained here than in a standard residential street, which shapes what a repair can practically involve.
In Castlecrag, where 97.4% of homes are freestanding, you are responsible for the wastewater pipes between your property and the point of connection. Sydney Water maintains the main. Because that point is not always inside your boundary, a Sewer Service Diagram is the reliable way to know where your pipework actually runs.
There’s no callout fee on eligible jobs, and quotes are free. You get a fixed price for the work before anything starts — priced by the job, not by the hour, so a job that takes longer than expected doesn’t cost you more.
Usually because the blockage was cleared but the cause wasn’t found. Streets that follow contours rather than a grid mean long private drainage runs crossing sloping, rocky ground. Getting machinery to a fault is often the hardest part of the job. A camera inspection shows whether you’re dealing with a one-off or a damaged pipe that will keep catching.
Narrow contour-following streets and heritage-area constraints make this one of the harder suburbs to bring machinery into. We work out access before quoting rather than after, because it genuinely changes what the job involves. We work that out before quoting, because on constrained sites it decides which repair method is realistic.
Often not. Heritage controls, sandstone and contour streets make excavation genuinely difficult here. No-dig repair and accurate pipe location earn their keep in Castlecrag more than almost anywhere on the North Shore. Relining repairs the pipe from the inside, which leaves driveways, paving and established gardens intact. Whether it suits your pipe depends on its condition — that’s what the camera inspection determines.
Across the Sydney market a simple blockage runs $150–$400, jetting a main line $250–$600, and pipe relining $450–$800 per lineal metre with most whole jobs landing between $4,000 and $10,000. Those are market ranges rather than Voyager’s price list. Heritage-area constraints and narrow contour streets limit what machinery can reach the work, and limit what can be excavated at all. Both push jobs towards relining. The per-metre rate is higher than digging, but it avoids reinstating ground that is expensive and, in a conservation area, sometimes not straightforward to reinstate. Voyager prices by the job, not the hour, and the price is agreed before work starts.
Yes — Voyager Plumbing holds NSW Contractor Licence 476657C, which you can check directly on the NSW Fair Trading register. All work is carried out by licensed plumbers and covered by public liability insurance.
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
Verify with NSW Fair Trading
Page reviewed and updated 13 August 2026
