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Backflow Prevention

Installation, Commissioning & Testing

Our Clients

Protecting Your Water

Supply from Contamination

Backflow prevention is critical in safeguarding potable water from contamination. Our team is licensed to install, test, and commission registered backflow prevention devices.

Our Services Cover:

  • Backflow device installation
  • Annual testing and certification
  • Compliance reporting for councils
  • System upgrades and repairs
  • Advice on risk mitigation

We notify you when testing is due and ensure all paperwork is submitted to the appropriate water authority—making compliance simple and stress-free.

Need Assistance With Backflow Prevention?

Contact A1 Plumbing & Gas Today

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Our Backflow Testing Process

Thorough. Compliant. Reliable.

At A1 Plumbing & Gas, we follow a detailed process to ensure your backflow prevention devices are fully operational and meet all local authority requirements. Here’s how we keep your property and water supply safe:

1. ASSESSMENT

Before we begin testing, our qualified backflow specialists conduct an on-site assessment to:

  • Identify all existing backflow prevention devices
  • Check device locations against your plumbing schematics
  • Evaluate risk levels and potential cross-connections
  • Review your compliance history and council requirements

This step ensures we understand your property’s unique needs and that every device is correctly positioned and appropriate for its hazard level.

2. TESTING

Using calibrated testing equipment, we carry out a full backflow test to check:

  • Valve integrity and pressure differentials
  • Sealing function under simulated backflow conditions
  • Signs of corrosion, wear, or damage
  • Proper drainage from relief ports (for RPZ devices)

All testing is completed in accordance with AS/NZS 2845.3 and local water authority standards. Our team works quickly to minimise any disruption to your water supply or business operations.

3. REPORTING

After testing, we prepare a clear and concise report that includes:

  • Device details (make, model, serial number, location)
  • Test results and pass/fail status
  • Any required repairs or replacements
  • Risk classification and recommendations
  • Photo documentation (if required by council)

We provide digital and hard copy reports for your records and compliance tracking.

4. CERTIFICATION & SUBMISSION

If your device passes, we issue an official Backflow Compliance Certificate. We also:

  • Submit the test report to your local water authority or council (e.g., Icon Water, Sydney Water, etc.)
  • Register or update your device details in their database
  • Add your property to our Annual Testing Reminder System, so you never miss a deadline

If any device fails, we’ll provide a repair or replacement plan and re-test after rectification to get you certified.

Need Assistance With Backflow Prevention?

Contact A1 Plumbing & Gas Today

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CLIENT TESTIMONIALS

Use A1 for all our plumbing needs, always responsive and proactive at keeping our Commercial kitchen and pub operating. There work is very clean and efficient which causes minimal distruption to operating services during business hours.
We look forward to our continued collaboration with A1 in keeping the premises compliant and operational

Dave
Telegraph Hotel Gunning

Used the Jim and the crew over the last 10 years on our commercial and domestic builds. Easy to deal with and very dependable , there quality of work is excellent would highly recommend them for all your commercial and domestic needs.

Sam White
Quality Constructions

I’ve had a great experience with A1 over the years. Their quality workmanship, seamless systems, and strong compliance expertise have given me complete confidence in both business and personal plumbing needs, including gas fitting. Highly recommended for businesses and homes needing reliable plumbing management, whether for capital works or ongoing maintenance.

Jim makes the whole process effortless, so you can focus on what really matters. Sincerely recommended.

Nathan Goulburn

We recently used A1 on our office refurbishment , from quote to works complete , they were easy to deal with and highly efficient, all works were completed to a high standard with photos and compliance paperwork attached for each stage of the works. 

Gunning Community Care 

Recently had a great experience with A1 , we had a blocked drain on a saturday evening , Jim from A1 responded in an hour of our call , he cleared the blockage and used there camera to identify the location of the blockage and found roots entering the drain , very grateful to A1 for getting our plumbing running again.

Carrie
Murrumabteman 

We used A1 to install our combi boiler and radiator heating system to our proerty in Yass.
They supplied a quote with a full scope of works and price breakdown , they turned up when they said and comlpeted the job a day earlier than expected 
All works were of a high standard they sourced the boiler and radiators which we are very happy with.
Would highly recommend 

Pat -Yass 

We use A1 for all reactive and planned maintenance on our property portfolio , they have implemented a planned maintenance programme for all our properties.
All compliance paperwork and certificates are forwarded direct to council for us which helps us get on with running our business.
We use A1 for all our reactive maintenance and they recently replaced a hot water heater after hours late one night to keep the property opertional.
Very easy to deal with.

Mick and Julie - Yass 

Used A1 to replace our hot water unit , we had no hot water! phone call made in the morning and we had hot water by the afternoon really appreciate jim and his team for responding so quick.

Marie - Murrumabateman 

We use A1 for all our reactive maintenance works form Goulburn , Canberra , Jindabyne , Wagga !! Never let us down they respond promptly , constantly attending sites for after hours emergencies works , there communication and reactivness to keep sites operating during works is greatly appreciated.
Easy to deal with and there expertise on petroleum sites is priceless 

Wayne
Sovereign All trades 

Had a blocked drain , A1 responded and cleared the drain with the jetter thing , form phone call to completion less than 3 hours , and we could reuse our toilets 

Jack- Gunning

Used A1 on our new build and renovations since 2016.
There workmanship and eye for detail is second to none.
From planning stage to completion there communication and workmanship is pivotal to help make the porcess to hand over seemless.
We would recommend A1 plumbing 5 stars!!!

Wood and co Building

Had A1 fix a burst water pipe in our ceiling during winter we were in a bit of panic as we could not isolate the water.A1 Responded repaired leak and removed the water damaged Gyprock in our ceiling to make safe.

Helen - Gunning 

A1 Replaced our hot water , great communication and service 

Tim - Yass 

Jim and team repaired a water line in our driveway , used ther locator to trace the pipe and found the leak , cut the driveway repaired the leak and reconcreted.
great service 

Mark - gunning 

Use Jim and the crew for our new house , excellenct service  we used them to install the under floor heating and all the general plumbing.
Excellent service and pricing we would definitely recommend 

Christan - Goulburn 

Used A1 to replace our hot water from electric to solar - Great communication and service 

Terry - Murrumbateman

A1 cleared our blockage on a weekend when no one lese would attend , thank you 

Claire Yass Valley

Used A1 install our septic tank and trench,s at our poperty , great srvice and workmanship.

Emily - Gunning

Replaced our hot water and gas line to unit would recommend 

Micheal - Gunning

Emergency call out at night  repaired leak in wall thanks to mice chewing it!!!!
Great service much appreciated 

Simone - Breadalbane