Pricing guide
Water Tanks & Stormwater Cost in Sydney
Rainwater tank installation including plumbing, pump, and stormwater connection.
Range
$3,000–$15,000+
Median
$8,000
Confidence
Low
18+ data points
Price by type and size
Single tank + pump (2,000L)
Range$3,000–$5,000
Median$4,000
Dual tank system
Range$5,000–$8,000
Median$6,500
Full stormwater + tanks
Range$8,000–$15,000
Median$11,000
Underground tank
Range$6,000–$12,000
Median$8,500
See water tanks & stormwater prices in other cities
Add-on pricing
| Add-on | Cost |
|---|---|
| Water filter | $200–$600 |
| Pump upgrade | $300–$800 |
| Plumbing to house | $800–$2,000 |
| Council inspection | $150–$400 |
What drives price up
▲Underground installation
▲Distance from house
▲Number of tanks
▲Stormwater integration
▲Pump type
▲Council requirements
Usually included
- ✓Tank supply
- ✓Basic installation
- ✓Pump
- ✓Downpipe connection
Usually excluded
- ○Underground excavation
- ○Plumbing to house
- ○Filtration
- ○Stormwater redesign
- ○Council permits
Common mistakes
Underestimating total cost
A $2,000 tank becomes $8,000+ with pump, plumbing, filter, and stormwater integration.
Frequently Asked Questions
Do I need council approval?
Usually yes for stormwater modifications. Check with your local council.
How long does installation take?
Simple above-ground: 1 day. Full stormwater system: 2-3 days.