Sydney's Best Value Backflow Prevention Plumbers

Trusted Backflow Experts Across Sydney & Blue Mountains

1800 172 743

Book Now

We're Open Now

Need Backflow Solutions? Fast Enquires.

We will call back within 30 mins!

What is Backflow Prevention?

Backflow prevention is a critical component of any water safety system, designed to protect potable (drinking) water supplies from contamination caused by the reverse flow of water. Backflow can occur when sudden changes in pressure draw pollutants or non‑potable substances back into the clean water network, creating serious health, legal, and operational risks.

At Rapid Plumbing Group, we specialise in the installation, testing, and maintenance of certified backflow prevention devices in accordance with all relevant Australian Standards and local authority regulations. Our licensed technicians ensure every system operates efficiently, remains fully compliant, and provides ongoing protection for your property, occupants, and community.

Enquiry Now

HOW CAN WE HELP?

Our Backflow Services in Sydney

I'm looking for

Backflow Installation

Need a backflow device installed or upgraded? Our certified team at Rapid Plumbing Group handles all types, ensuring compliance with regulations. Contact us for a quick installation and protect your water supply!

Learn More

I'm looking for

Backflow Testing & Certification

Backflow devices require annual inspection and certification. We conduct performance testing and handle compliance reports for your local water authority, taking care of all reminders and paperwork. Stay compliant and avoid fines—schedule your annual backflow test with Rapid Plumbing Group today.

Learn More

I'm looking for

Backflow Repair & Maintenance

If your device has failed testing or shows wear, we can provide on-site repairs, replace parts, or install a new unit. All work is certified and comes with a lifetime guarantee. Quick, compliant service without multiple visits.

Learn More

Live in one of these suburbs?

We'll be there in a flush 2 hours or less!*

1800 172 743

Book Now

Find us on Google

Can’t see your suburb? Give us a call! Chances are we’re nearby.

Rapid Plumbing Group - Your Local Accredited Backflow Experts

In New South Wales (NSW), Backflow installation & testing requires specialized qualifications, which not all plumbers possess. Rapid Plumbing Group is proudly certified to professionally install, test & repair backflow devices, guaranteeing compliance and optimal funcitionality.

Your compliance is our business! Let’s work together.

Book Now

Call Us Today

Licensed, Certified & Highly Experienced

All services are carried out by our fully licensed and accredited plumbing professionals with advanced certifications in backflow prevention. Backed by extensive industry experience, our team ensures every installation, test, and repair is completed to the highest regulatory and Australian Standards, delivering total compliance and peace of mind.

Proactive Scheduling & Compliance Reporting

We simplify regulatory compliance with proactive scheduling, automated reminders, and detailed reporting tailored to meet Sydney Water’s requirements. Our fully managed approach ensures every inspection, certification and on time – eliminating administrative burden and reducing risk.

Price Beat Guarantee

At Rapid Plumbing Group, we’re committed to offering the best value in Sydney and the Lower Blue Mountains. If you receive a lower written quote from a licensed and qualified provide for the same backflow service, we’ll beat it – guaranteed. With us, you never have to compromise on quality, compliance, or coast.

Water Compliance & Safety is our business

We ensure full regulatory compliance and safety by expertly managing your backflow prevention systems. Our comprehensive services include regular maintenance, through testing, and detailed compliance reporting to protect your property from potential risks.

Partner with Rapid Plumbing Group today to safeguard your assets, ensure regulatory adherence, and benefit from industry-leading water compliance solutions.

Schedule your service to ensure continued compliance

Request a Quote

Experts in All Backflow Brands

Why Choose Rapid Plumbing Group

To better serve our diverse client base, Rapid Plumbing Group operates across three specialised core divisions, each designed to meet unique client needs while maintaining the highest standards of service and compliance.

Proven Capability

A fully sustainable, in-house workforce delivering Tier 1 quality across residential, commercial, and government projects — no subcontractors, no compromises.

Best Price Guarantee

We’ll beat any written competitor quote, ensuring exceptional value without sacrificing quality.

Lifetime Workmanship Warranty

Every service is backed by our commitment to long-lasting reliability and performance.

Certified & Accredited

Proudly triple ISO certified Quality, Environmental and WHS standards.

Voted Sydney’s Best Plumbers 3 years in a row

Common Property Types That Require Backflow Prevention

Commercial & Industrial Properties

Factories and warehouses
Manufacturing and processing plants
Chemical handling facilities
Commercial laundries and dry cleaners

Medical & Dental Facilities

Hospitals and private medical centres
Dental surgeries and specialist clinics
Veterinary clinics and allied health providers

Childcare Centres & Schools

Primary and secondary schools
Early learning centres and preschools
Educational facilities with fire systems, irrigation, or commercial kitchens

Strata Complexes & Multi-Storey Apartments

High-rise residential buildings
Multi-unit dwellings with shared infrastructure
Complexes with irrigation, fire protection, or communal water services

Irrigation Systems

Agricultural farms and nurseries
Golf courses and sporting fields
Commercial landscaping with fertiliser injection

Food & Hospitality Venues

Restaurants, cafes, and bars
Hotels, motels, and commercial kitchens
Facilities with dishwashers, ice machines, and drink dispensers

Shopping Centres & Retail Complexes

Malls with food courts or irrigation systems
Retail outlets using mechanical or fire safety systems
Mixed-use commercial spaces with multi-risk zones

Swimming Pools & Fire Protection Systems

Properties with fire hydrants, hose reels, or sprinkler systems
Public and private swimming pools and spas
Sites with booster pumps or storage tanks

Any Site with Cross-Connection Risks

Properties using greywater, rainwater, or bore water systems
Locations with tank water top-ups connected to the potable supply
Dual water systems or recycled water connections

If your property falls into any of these categories, you are likely required to have a backflow prevention device installed and tested annually by a certified professional.

Failure to comply may result in penalties or disconnection of your water supply.

Call Us Today

Need Expert
Backflow
Advice or Testing?

Rapid Plumbing Group is Sydney and the Lower Blue Mountains’ trusted provider for:

Certified Testing & Calibration
Annual Compliance Submissions
Installation, Repairs & Maintenance
Risk Assessments & Reporting

Call now to schedule your Backflow inspection or book online to stay compliant and keep your property safe all year round.

Book Now

Call 1800 172 743

Signs You May Need Our Backflow Services

Your device hasn’t been tested in the past 12 months

Unusual taste or smell in tap water

Water authority has issued a reminder or compliance notice

Rusty or discoloured water

Recent plumbing renovations or system upgrades

You’re unsure if your site is compliant

If any of the above apply to your property, contact Rapid Plumbing Group for an expert assessment.

What Happens If You Don’t Comply?

Failure to install and maintain certified backflow prevention can result in hefty fines, health hazards, and water service interruptions. Annual testing and reporting are legally mandated in NSW for all testable devices.

Rapid Plumbing Group ensures your compliance is never in question.

Book Now

Call Us Today

We’ll beat any competitors written quote - Guaranteed!

We’ll not only match it, we’ll beat it*

At Rapid Plumbing Group, we’re committed to providing unbeatable value. If you find a lower written quote for Backflow testing, installation, or maintenance, we’ll beat it — guaranteed.*

No shortcuts. No compromise on quality. Just better pricing backed by our Lifetime Workmanship Warranty

Book with confidence

Rapid Plumbing Group is trusted by councils, schools, strata managers, and businesses across Greater Sydney and the Lower Blue Mountains. With licensed experts, fast turnaround, competitive rates, and zero shortcuts, we’re your compliance plumbing partner — for today and long-term.

1200+

5 star Reviews and counting

Types of Backflow Prevention Devices

Understanding the Right Solution for Your Risk Level

Backflow prevention devices are critical in safeguarding drinking water supplies from contamination caused by reverse water flow. The correct device depends on the hazard rating of the water connection and must comply with Australian Plumbing Standards AS/NZS 2845.1 and your local water authority’s requirements.

Below is a summary of the most commonly installed backflow prevention devices in Australia, including their testability, applications, and level of protection:

Reduced Pressure Zone
Device (RPZ)

Risk Rating

high

This is testable device: (required to be tested annually)

Applications:

Hospitals and medical centres
Chemical processing facilities
Car washes
Commercial kitchens and food production areas
Industrial plants

Function:

An RPZ includes two check valves and a pressure-monitored relief valve. If either valve fails or backpressure occurs, the device discharges contaminated water safely through a relief port — offering the highest level of mechanical backflow protection.

Double Check Valve Assembly (DCVA or DCV)

Risk Rating

medium

This is testable device: (required to be tested annually)

Applications:

Strata and commercial irrigation systems
Fire hose reels (in non-high-risk zones)
Apartment complexes and commercial offices
Warehouses and medium-risk businesses

Function:

A DCV has two spring-loaded check valves in series. If one fails, the other provides continued protection, making it ideal for moderate contamination risks without the need for relief drainage.

Single Check Valve
(SCV)

Risk Rating

low

This device is not a testable device

Applications:

Residential homes
Low-risk non-potable water outlets
General-purpose garden taps

Function:

An SCV allows water to flow in one direction only, preventing basic reverse flow. It offers minimal protection and is not suitable for commercial or medium-to-high-risk applications.

Air Gap
Separation

Risk Rating

high

This device is not a testable device

Applications:

Commercial laundries
Food or beverage production facilities
Laboratories
Rainwater tanks and break tanks

Function:

An RPZ includes two check valves and a pressure-monitored relief valve. If either valve fails or backpressure occurs, the device discharges contaminated water safely through a relief port — offering the highest level of mechanical backflow protection.

Break Tank Systems with Backflow Protection

Risk Rating

medium to high

This device is not a testable device, but additional backflow devices (e.g. RPZ or DCV) used in conjunction are testable

Applications:

Rainwater reuse systems
Pumped water supplies
Multi-storey building systems
Cooling towers and plant rooms

Function:

Break tanks incorporate a physical air break between supply and outlet. For added protection, they are often combined with testable RPZ or DCV devices to maintain compliance and cross-contamination prevention.

Atmospheric Vacuum Breaker (AVB)

Risk Rating

low to medium(Back siphonage only)

This device is not a testable device

Applications:

Irrigation systems Hose connections
Garden taps and outdoor washdown areas

Function:

An AVB prevents back siphonage by introducing air into the line if a vacuum is detected. However, it cannot stop backpressure and must be installed at least 150mm above the highest downstream outlet. It is limited in commercial use and not permitted in high-risk installations.

Need Help Choosing the Right Device?

Backflow prevention is not a one-size-fits-all solution. Risk level, system design, and compliance regulations all impact which device is right for your site.

Rapid Plumbing Group can:

Assess your property’s risk classification
Supply and install the correct Backflow prevention device
Perform annual compliance testing and submit reports

Let’s ensure your site is fully compliant, protected, and operating to Australian standards.

Book Now

Call Us Today

Expert Backflow Prevention
for Every Situation

Property
Managers

Learn More

Residential & Commercial Property Owners

Learn More

Companies/Business
Owners

Learn More

Government
Facilities

Learn More

Real Clients, Real Reviews

Our reputation is built on real experiences and real results.
Need a trusted plumbing solutions? Get in touch today!

Book Now

1200+

5 star Reviews and counting

V

“Professional, Affordable & Clean”

“They were incredibly fast, professional, affordable and had lovely manners. After they finished each job they cleaned up and took all the rubbish away.”

Veronica Dillon

J

“Punctual & Honest Service”

“Scott and the team at Rapid are always professional, punctual and deliver great service… Thoroughly recommend.”

Julia Jones

N

“Friendly Staff and Quick Resolution”

“Reception staff… friendly and helpful. The plumbers … identified the issue and resolved quickly. I definitely recommend.”

Nate Tier

B

“Fixed Multiple Issues in One Visit”

They fixed my toilet inlet valve, toilet rubber, leaking taps and installed my new dishwasher all on the same day… service was exceptional.”

Betty Rivera

C

“On Time, Kept Us Informed”

“The job was done by Corey to our satisfaction and within the price and time quoted… easy to communicate with.”

Charles Mckinney

C

“Exceeded Expectations on Repair”

“The best customer service and work repair completed at our property! Exceeded my expectations… Rapid are the experts on drains!”

Craig Vicary

L

“High-Standard Work Over Multi-Week Project”

“Harley and Ben far exceeded expectations. Their work was of a high standard… always prompt, polite and kept us updated.”

Lisa Mcmillan

J

“Immediate Response & Professional”

“Scott was there the next day, and immediately found the source of our problems. He was polite, a hard worker, and very capable.”

Jean Dalton

P

“Honest, Reasonable Quoting”

“Ben is the most honest plumber that I have ever met… impressed me by giving a very reasonable quote on a big plumbing project.”

Patty Webb

Have you Received a letter from the water Authority?

Don’t stress. Rapid Plumbing Group are here to help!

Have you received a notice from Sydney Water regarding a non-compliant backflow prevention device? Immediate action is required to avoid potential fines or water supply restrictions.

At Rapid Plumbing Group, we specialize in Backflow compliance and provide a seamless solution to ensure your property meets regulatory requirements without disruption. Our Backflow Compliance Services include:

Testing, Certification & Lodgement
We work directly with Sydney Water, conducting comprehensive compliance testing and submitting all required reports to prevent further action.
Repairs & Maintenance
If your device does not meet compliance standards, our expert technicians provide prompt repairs to restore full functionality.
New Installations
If replacement is necessary — we supply, install, & certify high-quality, regulation-approved backflow prevention devices.
End-to-End Compliance Management
We handle the entire process, paperwork, and submissions, ensuring full compliance without hassle.

Ensure Compliance Today: Protect your water supply and avoid penalties.

When it comes to Backflow Prevention services, Rapid Plumbing Group sets the industry standard.

Here’s why no other company comes close:

Sydney’s Best and Most Trusted Backflow Specialists

With a history of proven excellence, we are proud to have been voted the best backflow service provider in Sydney for three consecutive years. Our unwavering expertise, commitment to reliability, and dedication to superior quality have set us apart as the true leaders in the industry.

Full-Service Compliance Management – We Handle It All

Forget the stress of compliance paperwork. We manage testing, certification, and lodgements, working directly with Sydney Water and regulatory authorities so you don’t have to. Our streamlined process ensures you remain compliant without the hassle.

Expert Troubleshooting & Compliance Rectification

Got a non-compliant or faulty backflow system? We don’t just replace—we diagnose, repair, and rectify existing installations, ensuring they meet all regulations while saving you time and money.

High-Quality Installations for Long-Term Performance

We install premium, industry-approved backflow prevention devices and same-day and next-day service. Whether it’s urgent testing, repairs, or new installations, we act fast to minimize disruptions and prevent costly delays to your business or property.

Annual Compliance Reminders – Never Miss a Test Again

We track your compliance schedule and send timely annual reminders, ensuring you never risk fines or water supply restrictions due to missed testing.

Unrivalled Service & Competitive Pricing

We combine expertise, efficiency, and affordability to deliver the best backflow services in Sydney & the Lower Blue Mountains. Our commitment to quality, reliability, and customer satisfaction sets us apart from the competition. In the unlikely event you find a better deal, we’ll beat it—it’s that simple. We won’t be beaten on price or service.

We deliver exceptional service at the best rates in throughout Greater Sydney & the Lower Blue Mountains, offering unmatched expertise, efficiency, and cost savings—without compromising on quality.

Call us today to book your service and experience the Rapid Plumbing Group difference!

Book Now

Call Us Today

Backflow Prevention FAQs

More FAQs

Multiple Backflow Devices?

Get exclusive discounts on testing & installations

Test or install 2 or more Backflow Devices and save up to 15%. Limited-time offer, end soon!

Call 1800 172 743

Follow our team

Latest from our socials

Facebook

Instagram

Youtube

Trusted Backflow Experts Across Sydney & Blue Mountains

Need Backflow Solutions? Fast Enquires.

What is Backflow Prevention?

Our Backflow Services in Sydney

Backflow Installation

Backflow Testing & Certification

Backflow Repair & Maintenance

Live in one of these suburbs?

HILLS DISTRICT

INNER WEST

WEST SYDNEY

SOUTH WEST SYDNEY

SOUTH SYDNEY

NORTHERN SUBURBS

ST GEORGE

NORTH SHORE

EASTERN SUBURBS

SYDNEY CBD

BLUE MOUNTAINS

HAWKESBURY

Rapid Plumbing Group - Your Local Accredited Backflow Experts

Licensed, Certified & Highly Experienced

Proactive Scheduling & Compliance Reporting

Price Beat Guarantee

Water Compliance & Safety is our business

Experts in All Backflow Brands

Why Choose Rapid Plumbing Group

Proven Capability

Best Price Guarantee

Lifetime Workmanship Warranty

Certified & Accredited

Voted Sydney’s Best Plumbers 3 years in a row

Common Property Types That Require Backflow Prevention

Commercial & Industrial Properties

Medical & Dental Facilities

Childcare Centres & Schools

Strata Complexes & Multi-Storey Apartments

Irrigation Systems

Food & Hospitality Venues

Shopping Centres & Retail Complexes

Swimming Pools & Fire Protection Systems

Any Site with Cross-Connection Risks

Need ExpertBackflowAdvice or Testing?

Signs You May Need Our Backflow Services

What Happens If You Don’t Comply?

We’ll beat any competitors written quote - Guaranteed!

Book with confidence

Types of Backflow Prevention Devices

Reduced Pressure ZoneDevice (RPZ)

Double Check Valve Assembly (DCVA or DCV)

Single Check Valve(SCV)

Air GapSeparation

Break Tank Systems with Backflow Protection

Atmospheric Vacuum Breaker (AVB)

Need Help Choosing the Right Device?

Expert Backflow Preventionfor Every Situation

PropertyManagers

Residential & Commercial Property Owners

Companies/BusinessOwners

GovernmentFacilities

Real Clients, Real Reviews

“Professional, Affordable & Clean”

“Punctual & Honest Service”

“Friendly Staff and Quick Resolution”

“Fixed Multiple Issues in One Visit”

“On Time, Kept Us Informed”

“Exceeded Expectations on Repair”

“High-Standard Work Over Multi-Week Project”

“Immediate Response & Professional”

“Honest, Reasonable Quoting”

Have you Received a letter from the water Authority?

Servicing Greater Sydney, the Lower Blue Mountains & Surrounding Areas

When it comes to Backflow Prevention services, Rapid Plumbing Group sets the industry standard.Here’s why no other company comes close:

Sydney’s Best and Most Trusted Backflow Specialists

Full-Service Compliance Management – We Handle It All

Expert Troubleshooting & Compliance Rectification

High-Quality Installations for Long-Term Performance

Annual Compliance Reminders – Never Miss a Test Again

Unrivalled Service & Competitive Pricing

Backflow Prevention FAQs

Need Expert
Backflow
Advice or Testing?

Reduced Pressure Zone
Device (RPZ)

Single Check Valve
(SCV)

Air Gap
Separation

Expert Backflow Prevention
for Every Situation

Property
Managers

Companies/Business
Owners

Government
Facilities

When it comes to Backflow Prevention services, Rapid Plumbing Group sets the industry standard.

Here’s why no other company comes close: