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

Stormwater drainage · North Shore

Stormwater Drains North Shore

Get the rain away from your house.

Stormwater is the system that takes rain off your roof and away from your property. It’s separate from your sewer, it does nothing at all for most of the year, and you find out its condition during the first serious downpour.

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

Fixed upfront pricingPriced by the job, not the hour
24/7 emergencySomeone answers at 3am
Lifetime labour warrantyOn eligible work
No callout feeOn eligible jobs
Stormwater drainage

Signs your stormwater drainage isn't coping

The North Shore makes it harder than average: sloping blocks, heavy tree cover dropping leaf litter into every gutter and grate, and a lot of older properties where the stormwater was laid decades ago and extended piecemeal since.

  • Water pooling in the yard, against the house or on paving after rain
  • Gutters overflowing even though they’re clear
  • Water coming over the top of a grate or pit during heavy rain
  • Damp in a garage, basement or subfloor after a storm
  • Erosion or a soggy patch that never fully dries out
  • Water running toward the house instead of away
  • A downpipe discharging onto the ground rather than into a drain
  • Damp or rising damp on an internal wall — often a drainage problem rather than a plumbing one
A Voyager plumber with the high-pressure water jetting hose reel
Stormwater drainage

What goes wrong with stormwater drains

  • Leaf litter and silt — the dominant cause here. Deciduous and native tree cover fills grates, pits and lines with debris every year
  • Tree roots in older stormwater lines, same as in sewer
  • Collapsed or cracked pipes in older systems, often earthenware
  • Undersized systems — drainage laid for a smaller roof area, then extended when the house was extended, without upsizing
  • Poor falls, so water sits in the line rather than draining
  • Downpipes disconnected from the underground system, sometimes for decades
  • Pits full of debris that were never cleaned out
  • Blocked or crushed council connections at the boundary
The Voyager Plumbing branded service vehicle on the North Shore
A Voyager plumber unloading drain clearing equipment from the van

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.

Stormwater drainage

What Voyager does with stormwater drainage

Clearing blocked stormwater Grates, pits, and underground lines. Silt, leaves and root matter respond well to high-pressure water jetting, which cleans the pipe rather than just punching through the blockage.

Diagnosing what’s actually wrong A CCTV inspection shows whether the problem is debris or a broken pipe. Worth doing before spending on a system that turns out to be cracked.

Repairs and replacement Cracked, collapsed or root-damaged stormwater lines, including relining where the pipe permits.

New and upgraded drainage New lines, additional pits, downpipe connections, and re-grading a system that never drained properly. Where surface water is the problem, a trench drain may be the answer; where it’s water in the ground rather than on it, see sub-soil drainage and french drains.

Voyager Plumbing truck signage listing CCTV inspections, pipe location and jet blasting
Stormwater drainage

Which drainage problem do you actually have?

Worth getting right, because the fixes are different:

What you’re seeing Likely system Page
Water pooling on paving, driveway or paths Surface drainage Trench drains
Persistently soggy lawn or garden beds, damp subfloor Groundwater Sub-soil drainage
Water against a retaining wall or a slope Groundwater French drains
Gutters overflowing, pits backing up, roof water not getting away Stormwater This page

If you’re not sure, describe what you see and where — that’s usually enough to tell.

A Voyager Plumbing plumber arriving on site at a North Shore home
Stormwater drainage

Before the next big rain

Cheap things worth doing: clear the gutters, clear the grates and pits of leaf litter, and check that every downpipe actually discharges into a drain rather than onto the ground. A surprising number don’t.

If water still pools after that, the underground system needs looking at.

A Voyager plumber unloading drain clearing equipment from the van
Stormwater drainage

Frequently asked questions

Is stormwater the same as sewer?

No — two separate systems. Stormwater carries rainwater to the street or a legal discharge point; sewer carries wastewater for treatment. They’re not meant to be connected, and connecting them generally isn’t permitted.

My gutters overflow even though they’re clean. Why?

Usually the underground line or the pit below the downpipe is blocked, so water backs up. Clean gutters with overflow is a fairly reliable sign the problem is below ground.

Do I need council approval for stormwater work?

Sometimes — particularly for a new connection to the council system or changes to a legal point of discharge. Voyager will tell you when approval is likely to be needed before work is quoted.

Can stormwater pipes be relined?

Often, yes, subject to condition and diameter. A camera inspection establishes it.

Water pools in my yard but the drains seem fine. What now?

That usually means groundwater rather than a stormwater fault — the water is in the soil, not in your pipes. See sub-soil drainage.

How often should stormwater be cleaned?

On a leafy North Shore block, clearing gutters, grates and pits before each storm season is reasonable. Underground lines only need attention when there are symptoms.

Licensed plumbing service, NSW accreditationVoyager Plumbing lifetime labour guarantee on workmanship badge

Talk to a licensed North Shore plumber

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 19 August 2026