Backflow Prevention Testing & Installation in Sydney, Central Coast & Newcastle
Keep Your Property’s Water Supply Safe


Backflow can allow dirty or contaminated water to enter your clean water lines, putting health and safety at risk. Ontime Tradie provides expert backflow prevention testing, installation, and repairs to protect your home, business, or commercial property from water contamination.
Our licensed plumbers ensure your backflow prevention device is working correctly, certified, and fully compliant with local council and Australian plumbing standards.
What We Do – Comprehensive Backflow Services
We make sure your water stays safe with a full range of backflow services.
Our Services Include:
- Installation of approved backflow prevention devices
- Annual testing and compliance reporting to your council
- Repairs or replacements for faulty devices
- Risk assessment for cross-connection hazards
- Fast response if contamination is suspected
Types of Devices We Service:
- RPZ (Reduced Pressure Zone) valves
- Double check valves
- Pressure vacuum breakers
- All major brands and council-approved devices
Why Backflow Prevention Matters
- Keeps your drinking water clean and safe
- Meets council and regulatory compliance requirements
- Protects the health of your family, staff, or tenants
- Avoids fines or penalties for non-compliance
- Peace of mind with professional certification and reminders
Why Choose Ontime Tradie?
Certified Backflow Specialists
Fully licensed plumbers with backflow accreditation.
Hassle-Free Compliance
We handle everything-from testing to lodging results with the council.
Scheduled Maintenance
We’ll remind you each year when your next test is due.
Prompt Service You Can Rely On
We arrive when we say we will and get the job done right the first time.
Residential, Commercial & Industrial
No matter the size of your property, we have the right solution.


Book Your Backflow Service Today
Protect your water supply and stay compliant with Ontime Tradie’s professional backflow services.
Our Valuable Services

Frequently Asked Questions
What is backflow and how does it happen?
Backflow happens when water flows in the opposite direction, potentially pulling contaminated water into your clean supply.
How frequently does my device need testing?
Most devices must be tested every 12 months to comply with council rules.
Can any plumber test backflow devices?
No-only accredited plumbers are allowed to test and certify backflow devices.
What if my device fails the test?
We can repair or replace it immediately and re-test so you stay compliant.
Do residential properties need backflow devices?
Some do-especially those with irrigation systems, pools, or connections that pose a contamination risk.
Will you send the results to the council for me?
Yes. We’ll handle all reporting so you don’t need to worry about paperwork.