HOT WATER REPAIR & REPLACEMENT SYDNEY
Same-day service across Sydney. Licensed, insured, upfront pricing.
- Plumbing
- Electrical
- Air/Heat
4.8
800+ Reviews
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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.
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 hot water 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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Real reviews from real customers
Hear directly from our clients about their experiences with our expert technicians.
Philip was very supportive addressing and following up the issue. Whilst he didn't detected exactly what was happening he made sure to address that their team were on the case and they will fix it.
Aidan and Kieren did a brilliant job installing new Mains box and replacing lights that haven’t worked for ages. These guys have literally got my house functioning again and I can truly say that they are skilful technicians who go the extra mile for their clients. Thanks guys for literally lighting up my life!!
Excellent service from Network Plumbing Electrical & Air Conditioning Services. The team included Kieran, Jad, Aiden and Jayden all were very professional, punctual, and completed the installation in a timely manner. A special mention to the apprentice Kieran who did a fantastic job—hardworking, polite, and very thorough throughout the installation. The whole team left everything clean and tidy. We appreciated their attention to detail and willingness to answer all our questions throughout the process.Highly recommend.
My multi-split air conditioning compressor stopped working. Tristan assessed my problem and made sure that he understood the whole system and not just one part so that he could make the correct decision. I was fearing the worst that my compressor would have had to be replaced. Tristan found and fixed my problem and took his time to explain why the compressor stopped working. Highly recommend the Network company and Tristan for his honesty and exceptional customer service (5+ stars)
Jayden, Tom and Jackson were excellent, professional and helpful guys who put in my new aircon and serviced my other one. They really cleaned up after themselves. Thanks guys xx
Plumber was very friendly & I was happy with the job he did. It was only a blocked toilet & was fixed in seconds. I would recommend him again
Rob and Philip were terrific 👏 😀 thankyou for their courtesy through out the job. Explained everything and we are pleased to have a lovely new hot water unit. Very happy with the service. Wrm regards Vicky Berry
Thank you to Bill, Will and Josh who did a fantastic job fixing my roof. From the initial meeting with Matt to the challenging work completed by Bill, Will and Josh , it was a great experience. These gents worked very hard while on two roofs and still managed to be very pleasant and spent time answering any questions or concerne. Highly recommend and hlad I went with Network.
Great to find an honest,, caring tradesmen. I would not hesitate to recommend this company.
Absolutely fantastic work Frist the gas leak in the kitchen and then the toilet replacement perfect, clean on time and reasonable pricing thank you Pablo and Grant 10/10
Keiran and Luke did a switchboard upgrade and installed a replacement exhaust and light unit in the bathroom. Great job guys! Will use again. THANKYOU!!!!
Oliver did a great job to fix my shower tape
Fantastic service. Super responsive team, and Ryan the plumber was exceptional — great advice, friendly, and proactive. He even arranged an AC technician to come the very next day for a filter clean. Truly above‑and‑beyond coordination.
Networks after sales is very professional. Jayden who serviced our system this morning is an excellent technician. He’s ‘Prompt, polite and a most pleasant young gentleman. A credit to Network Air Conditioning
Cody foster was sent to me from STP. He was great. On time, communicated times, called ahead, attended and gave me great advice on my Ethernet cable problem. Problem solved for about 30min and gave me honest advice about my situation and didn’t sell me a solution that would not be beneficial. I will call him for my next electrical issue for sure. I definitely recommend him!
Matthew carried out a roof inspection and showed me the pics. He then prepared a quotation. Good service.
Spencer was thorough and gave great advice
Kieran and Matt B did a fabulous job
Kieran and Rod did an amazing job reinstalling the timber on my roof!
Excellent service ; Brendan arrived on time and inspected the drainage efficiently with immediate feedback. Would definitely use again.
I want to thank Network for their help - Danny Ryan and Taison for installing my new hot water system. They were efficient and professional. And also to Tom Garrett and Kieran Casey for fixing the electrical. My hot water system burst in the middle of the night and by the evening of the next day my little girls and I got to have hot showers!! Thank you so much!! Will be using Network again, not to mention they were all such lovely guys!!
Kieran from STP came to our house to replace and fit multiple down lights and replace and fit a new smoke alarm. He was very polite and enthusiastic and completed the job to a very night standard and I am very happy with Kieran and the company STP for their work.
Robbery and fill done a great job 👌
We recently had ceiling fans installed by Tom and Kieran. They were able to conplete the works the same day as the quote, they were super professional and very friendly. They made sure everything worked perfectly and demonstrated the fans before leaving. Great experience!
Spencer was a legend! Thanks so much
Network did excellent work upgrading our waste lines under one of our bathrooms and laundry. They also upgraded our inspection point at the Sydney Water junction. All the guys Spencer, Callum, Ollie, Luke and Robbie were quick, neat, friendly and, above all else, did a great job. The company is a pleasure to deal with and I have no hesitation recommending them. An involved job done with a minimum of fuss. Thanks guys, Steve
Phillip, Luke, and Shaw relined our sewage pipes for us; everyone was super friendly, hard-working (through the rain!), and understanding about my barky dog, haha. Thank you so much for your work!
Oliver and Matt did a good job today
Very courteous and very knowledgeable
Spencer has just left my home after spending time investigating a leak in my kitchen tap. After investigation & then a follow up discussion with me, we've decided a new tap is the way to go. Spencer is so courteous and considerate and is thorough in his work. I always feel comfortable having Network addressing any plumbing issues. I'd highly recommend Network Plumbing as my experience with Spencer's plumbing expertise (in fact, all of Network's team), has always been positive.
Penny and Jake from network plumbing were very friendly, efficient and helpful with our enquiry. We wanted a dishwasher connection setup and we were given a reasonable free quote along with excellent customer service. I would recommend these guys to anyone with plumbing needs. Thanks again for your assistance in setting up the dishwasher. It works perfectly!
Really happy with the work and help from our technicians today Kieran Casey and Luke Donlan. They recommended a quoter and explained everything really clearly. Thank you.
Oliver was a great tradesmen arrived on time courtesy. Kept me informed of his procedure. Solved the problem .
Kieran and Luke did rewire and installed 3 power points.
Phillip and Sean relining installation - great job, very efficient. would recommend! lovely people
Tom and Kieran, very cool blokes and were very knowledgeable towards their work, Recommend these two!
Kieran and Damian were extremely helpful and polite
I had Aiden and Kieran come to my grandparents house to upgrade their switchboard and they were the most polite and handsome young men i have ever had the pleasure of meeting. I would highly recommend anyone in need of electrical services to ask for these two legends.
Phillip and Sean done a fantastic job reclining the broken pipes at my place (66-72 Dee Why Pde). They were efficient and very friendly compared to some of the other tradesmen we get working here. Couldn’t recommend them enough!
Phillip and Shaun from Network- plumbing did an excellent job. Exceeded my expectations. Totally recommend them.
Phillip and Sean reline installation left side clean
Phillip and Shuan. Relining installation
Spencer came and helped me with a complimentary plumbing inspection which I was very happy with! He also mentioned he was doing some push ups for charity so I had to get a photo of him doing a push up! He went a bit overboard
Phillip and Shaun where very friendly happy with the reline installation
Philip and Sean relied the sewer pipe,
Philip and Shaun reline installation
Phill and Shaun reline installation very kind and let us know what is happening
Phill and shaun reline installation very friendly and let us know what is going on
Great service from start to finish. I had several taps replaced at our home and the work was completed quickly and professionally. A special thank you to Jordan for his excellent customer service. He was friendly, helpful, and made the whole process easy. We’re very happy with the result and would highly recommend Network
Spencer was very good, he explained everything to me, he also check everything else was ok
6 Signs You Need a Hot Water System Replacement
- An old hot water unit (10+ years)
- Loud or noisy heating system
- Discoloured water
- Leaking tank
- Fluctuating water temperatures
- 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.
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 hot water 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 hot water heater system repair plumbers are happy to help you select and install the best and most reliable system for your family or workplace, including expert hot water installation services. Don’t suffer through cold showers due to water heater leakage or any other issues – call Network Plumbing today for emergency hot water repair, professional hot water installation, 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:
Knowing the exact location of your hot water heater is crucial. It might be upstairs, downstairs, internal, or external.
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.
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.
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
- 24/7 Emergency Plumbers Available
- 40+ Years Solving Emergencies
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.
With over 40+ years of experience, Network Plumbing specialises in hot water system installations, hot water 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 hot water system repairs or hot water system 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 carry out hot water installation of 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 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.
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
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
- Call Network's Emergency Plumbers
- Turn Off Your Power Supply
- Isolate The Cold Water
- Network Has Arrived
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.