Mr. Clog Plumbing
Backflow Prevention Testing & Installation Sydney
Annual backflow testing and device installation by certified testers.
About This Service
Backflow prevention devices protect Sydney's drinking water supply from contamination. NSW regulations require annual testing of all registered backflow prevention devices by a certified tester. Mr. Clog is certified to test, certify, repair, and install backflow prevention devices for commercial and residential properties across Sydney.
What’s Included
- Annual backflow testing and certification
- Testable and non-testable device installation
- Compliance certificates issued
- Repairs and device replacements
- Required for commercial, industrial, and many residential properties
Typical Cost
From $120–$300 for test only to device install
Get an exact quote — call us or submit a request.
Ready to book?
(02) 9139 8945 — available 24/7How It Works
Our Process
Test
A certified technician tests your backflow prevention device using calibrated test equipment.
Certify or Repair
If the device passes, we issue a compliance certificate. If it fails, we repair or replace the device on the spot where possible.
Lodge
We lodge the test results with Sydney Water on your behalf as required by regulation.
Remind
We schedule your next annual test so you never fall out of compliance.
Common Questions
FAQs
What is backflow prevention?
A backflow prevention device stops contaminated water from flowing back into the mains drinking water supply. They're required on properties where there's a risk of cross-connection.
How often do backflow devices need to be tested?
Annually — NSW regulations require all registered testable backflow devices to be tested by a certified tester every 12 months.
What happens if I don't test my backflow device?
Sydney Water can issue notices and fines for non-compliant properties. Untested devices can also fail silently, creating a contamination risk.
Do residential properties need backflow devices?
Some do — especially properties with irrigation systems, pools, or other non-drinking water connections to the mains. We can advise whether your property requires one.
Ready to Book?
Call now for fast, reliable service — $0 call-out fee, available 24/7.