Blocked Stormwater Drain in Malvern? Causes, Signs & Fast Solutions
- Peter Holmes
- Mar 24
- 3 min read
If you’re dealing with a blocked stormwater drain in Malvern, it usually shows up at the worst time — during heavy rain. Water starts pooling, gutters overflow, and suddenly your property is at risk of flooding.
The good news is most stormwater issues are fixable quickly when identified early. Here’s what’s causing the problem, what to look for, and how to resolve it properly.

What Is a Stormwater Drain?
Stormwater drains carry rainwater away from your property, including:
Roof water from gutters and downpipes
Surface runoff from driveways and gardens
Overflow from stormwater pits
Unlike sewer systems, stormwater drains should only carry clean water — but over time, debris builds up and causes blockages.
Common Causes of Blocked Stormwater Drains in Malvern
Malvern properties often have established trees, older pipework, and narrow drainage lines, which increases the likelihood of blockages.
1. Leaves and Organic Debris
Tree-lined streets in Malvern mean gutters and pits collect:
Leaves
Dirt
Bark and mulch
This builds up and eventually blocks the flow of water.
2. Tree Root Intrusion
Roots naturally seek moisture and can break into stormwater pipes.
Once inside, they:
Trap debris
Restrict water flow
Cause recurring blockages
3. Broken or Collapsed Pipes
Older properties may have:
Cracked PVC or clay pipes
Misaligned joints
Sections that have collapsed underground
These restrict flow and cause backups during rain.
4. Blocked Stormwater Pits
Pits act as collection points — but when full, they stop working.
Common issues:
Sediment build-up
Leaves clogging grates
Overflow during storms
Signs Your Stormwater Drain Is Blocked
Watch for these early warning signs:
Water pooling around your property
Overflowing gutters or downpipes
Gurgling sounds from drains
Slow drainage during rain
Water backing up near pits or grates
If left untreated, this can lead to property damage, erosion, and internal water ingress.

How We Fix Blocked Stormwater Drains
At Plumb Melbourne, we use a structured approach to diagnose and clear stormwater issues properly.
1. Drain Inspection
We assess:
Pits and grates
Downpipes and flow paths
Likely blockage points
2. High-Pressure Water Jetting
This clears:
Leaves and sludge
Built-up debris
Minor root intrusion
It’s fast, effective, and doesn’t damage your pipes.
3. CCTV Drain Camera
For recurring or severe issues, we inspect inside the pipe to identify:
Root intrusion
Pipe damage
Collapsed sections
4. Repairs (If Required)
If damage is found, we can:
Repair or replace sections of pipe
Install new stormwater pits
Improve drainage flow and compliance
Preventing Future Stormwater Blockages
Simple steps can save you from repeat issues:
Clean gutters regularly (especially before winter)
Install leaf guards on downpipes
Check pits after heavy storms
Book an annual drain inspection for older properties
Stormwater Issues for Property Managers in Malvern
Blocked stormwater is a common maintenance issue in rental properties.
We work with property managers to:
Respond quickly during storms
Provide clear reports and photos
Prevent recurring issues across portfolios
This helps reduce emergency call-outs and protect the property long-term.
When to Call a Plumber
You should call immediately if:
Water is pooling near the house
Drains overflow during rain
You suspect root intrusion
The issue keeps coming back
📞 Call Plumb Melbourne on 0437 296 544
We service Malvern and surrounding suburbs, including Glen Iris, Armadale, and Toorak.




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