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Thermostatic Mixing Valve

Installation, Commissioning & Testing

Maintain Safe and Reliable Water Temperatures

Thermostatic Mixing Valves (TMVs) are essential for controlling water temperature and reducing the risk of scalding—especially in environments like aged care, hospitals, childcare, and commercial facilities. At A1 Plumbing & Gas, we provide professional TMV testing and maintenance to ensure your systems meet safety standards and perform as required. Whether for a residential or commercial property, our expert team helps you maintain the perfect balance of hot and cold water—safely and compliantly.

Ensure Compliance &

Safety with TMV Inspections

Thermostatic Mixing Valves (TMVs) are critical for maintaining safe water temperatures, especially in high-risk environments like hospitals, aged care facilities, schools, and commercial kitchens. These valves help prevent scalding by regulating the mix of hot and cold water. However, like any mechanical device, TMVs can deteriorate over time—leading to inconsistent temperatures and potential safety hazards.

Regular TMV testing is essential to:

  • Prevent Scalding Accidents – Protect vulnerable users from dangerously hot water.
  • Ensure Regulatory Compliance – Meet health and safety standards required by law.
  • Maintain System Efficiency – Ensure your plumbing system is operating safely and effectively.
  • Avoid Costly Repairs – Detect issues early before they become major problems.
  • Provide Peace of Mind – Know that your water systems are safe and fully functional.

Trust A1 Plumbing & Gas to keep your TMVs tested, maintained, and fully compliant.

Don’t Leave Water Temperature Safety To Chance

Book your TMV Testing with A1 Plumbing & Gas Today

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Why TMV Testing Is Important

Protect Lives. Maintain Compliance. Prevent Scalding.

Thermostatic Mixing Valves (TMVs) play a crucial role in controlling water temperature to safe, consistent levels—especially in environments where vulnerable individuals may be at risk of burns or scalding. At A1 Plumbing & Gas, we provide accredited TMV installation, testing, and maintenance services across residential, commercial, and healthcare facilities. But why is regular TMV testing so important?

1. Preventing Scald Injuries

Hot water can cause serious injuries in just seconds—especially to young children, the elderly, and those with reduced mobility. TMVs mix hot and cold water to a preset safe temperature (typically between 38–45°C) to prevent sudden spikes in temperature that could result in burns. Without regular testing, a TMV can:

  • Fail to regulate temperature properly
  • Allow dangerously hot water to flow
  • Create unsafe conditions in showers, sinks, or bathtubs

2. Meeting Legal and Compliance Requirements

In Australia, TMVs installed in high-risk locations (such as aged care, hospitals, schools, and child care centres) must be tested and certified at least annually under AS/NZS 4032.3. Failure to comply may result in:

  • Breaches of health and safety regulations
  • Legal liability in the event of an incident
  • Potential closure or penalties from regulatory bodies

Our certified TMV testers ensure your site remains fully compliant and risk-free.

3. Ensuring Valve Performance & Longevity

Over time, TMVs are exposed to mineral build-up, corrosion, and wear and tear. This can cause:

  • Reduced water flow
  • Fluctuating or incorrect temperatures
  • Complete failure of the mixing function

Regular servicing and testing ensures:

  • Accurate temperature control
  • Extended lifespan of the valve
  • Early detection of potential issue

We clean, recalibrate, or replace worn components to restore full functionality.

4. Providing Peace of Mind

When lives and safety are on the line, you can’t take risks. Regular TMV testing provides:

  • Documented safety assurance
  • Peace of mind for managers, staff, and occupants
  • Fewer breakdowns and emergency repairs

We also manage your compliance schedule, sending reminders when your next TMV test is due—so you’re always up to date.

Fully Licensed & Accredited Technicians

Compliant with AS/NZS 4032 Standards

Annual Certification & Council Reporting

Fast Response Across Goulburn, Bowral, Queanbeyan & Canberra

Don’t Leave Water Temperature Safety To Chance

Book your TMV Testing with A1 Plumbing & Gas Today

Click Here

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