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HOT WATER REPAIR & REPLACEMENT SYDNEY

Sydney’s trusted Hot Water Repair & Replacement with 40+ years of experience. We are not happy until you are.

HOT WATER REPAIR & REPLACEMENT SYDNEY

Hot Water System Repair, Replacement & Installation

Waking up to no hot water or water heater leakage is a hassle, but Network Plumbing can help. Whether you need plumbing services in Northern Beaches or across Sydney, we offer SAME DAY and 24/7 service guarantees on your hot water heater repair. Our licensed, local plumbers are ready to handle any emergency hot water system repair in Sydney, as well as new installations and hot water system replacement services.

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When your hot water heater fails, it disrupts your daily life or business significantly. Whether you have a gas, electric, solar, or heat pump system, our professional Sydney plumbers are on call to provide prompt hot water repairs or complete hot water system replacement. From water heater replacements near you to addressing leaks, we’re ready to guide you and help you minimise damage and stay safe while our specialists are on their way.

With over 35 years of experience, Network Plumbing specialises in hot water system repair in Sydney, offering expert installation, servicing, and hot water system replacement. We handle all types of systems and can recommend the best option for your needs, whether residential or commercial.

Hot water systems in Sydney are essential for maintaining your daily routine. When your system fails, it’s crucial to rely on an expert for hot water repairs or hot water system repair in Sydney to keep your home or business comfortable and functional. Don’t suffer through cold showers – contact Network Plumbing for professional hot water repairs and replacement services today.

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6 Signs You Need a Hot Water System Replacement

  1. An old hot water unit (10+ years)
  2. Loud or noisy heating system
  3. Discoloured water
  4. Leaking tank
  5. Fluctuating water temperatures
  6. Increased household demand


If you notice any of these signs, it’s time to consider a hot water system replacement. To reduce the need for frequent hot water repairs, it’s recommended to service gas, electric, and solar hot water systems every few years to ensure efficiency and longevity.

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Sometimes, water heater repair is not possible. Network Plumbing specialises in supplying and installing various new water heater replacements near you, including electric, heat pumps, solar, and continuous flow systems. We work with top brands like Bosch, Rinnai, Rheem, and Dux.

All installations come with a manufacturer’s warranty. When you choose Network Plumbing, we keep detailed records and will notify you before your warranty expires, ensuring peace of mind at no extra cost. If you’re still asking yourself, “how often should I replace my hot water heater?”, give us a call and we can happily take a look!

24/7 Emergency Hot Water Repairs & Replacement Sydney

Australia’s hot water system can account for more than 1/5 of your annual energy use, making it crucial to choose an energy-efficient system.

Our water heater repair plumbers are happy to help you select and install the best and most reliable system for your family or workplace. Don’t suffer through cold showers due to water heater leakage or any other issues—call Network Plumbing today for emergency hot water repair or water heater replacement near you!

Emergency Steps

When you have a hot water system emergency in Sydney, follow these steps to ensure your situation is handled effectively before our reliable plumbers arrive:

1.Locate Your Hot Water Heater

Knowing the exact location of your hot water heater is crucial. It might be upstairs, downstairs, internal, or external.

2. Check For Leaks

If your hot water system is leaking, locate the control valve. For electric storage tanks, the valve is usually at the base of the tank. For continuous flow systems, it’s typically underneath the heater. If water continues to flow, locate and turn off the water meter.

3. Turn Off the Power Supply

If possible, turn off your power supply to prevent any electrical hazards. For electric hot water heaters, you might also need to turn off the circuit breaker to avoid the heating element turning on unexpectedly.

4. Turn Off the Gas Supply

If you have a gas hot water system, turn off the gas supply until our specialist plumber arrives to assess and repair the issue.

Emergency Water Heater Repair Sydney

When you need water heater repair due to water heater leakage or failure, it disrupts your life. Hot water systems often contain boiling water and connect to your electrical mains. Safety is key in emergency hot water repairs. Whether you have a gas, electric, solar, or heat pump system, our professional water heater repair plumbers are on call to provide repair or hot water heater replacement quickly.

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With over 40+ years of experience, Network Plumbing specialises in hot water system installations, service, and repairs. We handle all systems and can recommend the best one for your needs. Our plumbers are trained to handle all brands, from Rinnai to Rheem to Bosch, providing quality service for water heater repairs or water heater replacement near you. For comprehensive hot water service Sydney, trust Network Plumbing for tailored solutions.

Our qualified plumbing technicians are accredited by leading manufacturers and can service, repair, or install a new system or heat pump for you whenever you need it. We are on call 24 hours a day, 7 days a week, even on long weekends, and will have a professional plumber at your door immediately.

If you need immediate assistance, a plumber near you from Network Plumbing’s team will be able to help quickly and efficiently. Call our emergency line for same-day service at 02 0485 800 361.

Hot Water System Maintenance Near You

Do hot water systems need to be maintained? The answer is a resounding YES!

Hot water systems are often out of sight, leading to them being overlooked. Despite their hidden location, they work hard to provide hot water for showers, taps, washing machines, and dishwashers. Given their daily use, regular hot water system maintenance is crucial for efficiency and longevity.

1. What's Involved?

When servicing a hot water system with a storage tank, there are 6 main aspects that will usually be assessed by our team. 

  • Checking for any visible signs of water heater leakage
  • Replacing the sacrificial anodes that are stored in your hot water tank if needs be
  • Check the pressure and temperature of the water tank
  • Check the static flow and working flow of the water pressure
  • Check the electrical element at the base of the system
2. Why Is A Continuous Flow System Different?

The maintenance for a continuous flow hot water system is slightly different. Our plumber will usually perform the following checks at a service to ensure your unit is efficient and running to its best performance.

  • Check the fan function.
  • Inspect the heat exchange.
  • Test the gas pressure.
  • Assess the isolation valve is working properly.

WHAT TO DO IN A HOT WATER EMERGENCY

SYDNEY'S LOCAL TRUSTED TECHNICIAN

Welcome to your ultimate guide for finding the best plumbing, electrical, and air conditioning services near you. Whether you are facing an unexpected emergency or planning routine maintenance, we have made it easy to connect with top-rated professionals in your area.

Our trusted network of experts is just a click away, ensuring you receive reliable and high-quality service for all your home needs. Find the right professionals to keep your home running smoothly and efficiently.

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Frequently asked questions

Do you have more burning questions about leaking taps, a blocked toilet or your plumbing system? Here are some plumbing solutions.

How much does it cost to repair hot water?

Hot water repair costs vary depending on the system type, age, and the part that’s failed. Some issues are minor and quick to fix, while others involve critical components that need careful assessment.

Rather than guessing over the phone, our Sydney technicians inspect the system on site, explain what’s gone wrong, and walk you through the most sensible repair options before any work begins.

Is it worth it to repair a hot water heater?

In many cases, yes – especially if the system is relatively young and the fault is isolated. Repairs can be a cost effective way to restore hot water quickly.

However, if the system is older or experiencing repeated failures, replacement may be the better long term option. A professional assessment helps you make the right call based on safety, reliability, and value, not guesswork.

Does a plumber fix hot water systems?

Yes. Licensed plumbers, and gas fitters for gas systems – repair, service, and replace hot water systems. Because hot water systems involve water pressure, electricity, or gas, work must be done by a properly licensed professional.

Our Sydney team is trained across electric, gas, and heat pump systems.

What is the life expectancy of a hot water system?

Most hot water systems last 10–15 years, depending on the type, usage, water quality, and maintenance. Regular servicing can extend lifespan, while hard water and heavy usage can shorten it.

Knowing the age of your system helps determine whether repair or replacement makes the most sense.

Is it cheaper to repair or replace my water heater?

It depends on the system’s age and the nature of the fault. Repairs on newer systems are often worthwhile, while major component failures on older units may make replacement the smarter long-term option.

Our approach is to assess the system properly and explain the pros and cons of each option before you decide.

What is the most common problem with a hot water heater?

Common issues include failed heating elements, faulty thermostats, gas ignition problems, sediment build-up, and pressure relief valve issues.

Many of these problems show early warning signs before total failure, which is why timely inspection can prevent complete loss of hot water.

How much does a plumber charge to service a hot water system?

Service costs vary depending on system type, access, and what checks or adjustments are required. Rather than applying flat assumptions, we inspect the system on site and explain what the service involves before proceeding.

How long can you be left with no hot water?

There’s no set rule, but being without hot water for more than a day — especially during cooler months – is generally considered disruptive and should be addressed promptly.

If hot water loss affects hygiene, health, or daily living, it’s worth having the system assessed sooner rather than later.

How do you diagnose problems with a hot water heating system?

Diagnosis involves checking power or gas supply, thermostats, heating elements or burners, pressure levels, safety valves, and overall system condition.

Because each system behaves differently, proper diagnosis requires onsite inspection rather than phone assumptions.

What is the first thing to check when there is no hot water?

A quick first check is whether power or gas supply has been interrupted, such as a tripped circuit breaker or extinguished pilot light.

If supply is present and there’s still no hot water, it’s best to have a licensed technician assess the system to avoid safety risks or further damage.

What is the most common cause of no hot water?

The most common causes are failed heating elements (electric), ignition or gas supply issues (gas), thermostat faults, or system shutdowns due to safety mechanisms.

Each cause requires a different solution, which is why professional diagnosis is important.

What happens before a hot water heater goes out?

Warning signs often include:
• Fluctuating water temperature
• Reduced hot water supply
• Strange noises from the tank
• Rusty or discoloured water
• Small leaks around valves or the base

Catching these signs early can prevent full system failure.

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