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Why is My Hot Water System Leaking?

It might be baffling to not know the exact cause of a water heater leak in your household or workplace. If you suspect a hot water system leak, you should contact Doherty Plumbing Solutions for assistance!

Leaving it until late could cause long-term damage to the unit itself, and even harm adjacent walls and flooring if the leaking water begins to accumulate. Slow leaks, which are not always promptly detected, can further cause irregular water flow from the hot water system.

So, before things snowball into a bigger plumbing issue, it is always advisable to act fast.

While some hot water unit leaks can be tackled with minor repairs, others might require a hot water heater replacement. In this case, licensed plumbing professionals such as Doherty Plumbing Solutions are there to help you find the best option.

What causes water heaters to leak?

Irrespective of any make or model of a hot water system, leaks springing from the unit could be due to one or more of the following causes:

  • Corrosion inside the tank resulting from the old age/overuse of a heater
  • Ill-fitting pipework, which might leave the unit’s supply lines loose
  • Damaged valves, including the pressure and temperature release valve (PTV) and expansion control valve (ECV), which help to keep the unit functioning optimally
  • Higher water pressure in the water mains, compared to the capacity of the heating unit

What to do if you notice a water heater leak?

If you find hints of a hot water system leak, take the following steps:

  1. Try to locate the source of the water leak.
  2. Turn off the water supply to the heating unit from the mains.
  3. Contact a professional plumber for peace of mind, and to gauge if you need a simple water heater repair or a full overhaul of the unit.

Who fixes hot water systems in Melbourne?

When your hot water system starts to act up, and you are frustrated by the sudden inconvenience, Doherty Plumbing Solutions’ team of expert plumbers can help.

Our licensed plumbers provide complete hot water services in Melbourne’s eastern suburbs, including repairs, maintenance and replacements/installations.

When you choose Doherty Plumbing Solutions for your Melbourne hot water services, you will receive top-of-the-line, quality workmanship.

In the event a hot water unit repair is not possible, we will work with you to determine a replacement that is suited to your home, budget, family, and lifestyle.

We work with industry-leading Australian brands for hot water units, and can make the necessary arrangements to order and install it in your Melbourne home or business.

For regular and reliable servicing of your gas appliances in compliance with the current Australian safety standards, reach out to our team for a quick response:

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    James scheduled the job and confirmed the appointment time within hours and George fitted our toilet which involved significant modifications to the floor as well as inlet/outlet positioning. He was punctual,obliging and professional. I highly recommend Doherty to anyone requiring plumbing services. In addition the fee was competitive and reasonable. Thank you guys,you will be our go-to for future jobs.
    Gerald Galatis Avatar
    Gerald Galatis
    12/30/2023
    Absolute pleasure to deal with. They installed our new toilets with care. They removed and disposed of the old as well as leaving the bathrooms clean. They also returned a few days later to check their work and if we were happy with them. Very happy to refer them to others.
    Chiara Weller Avatar
    Chiara Weller
    7/20/2023
    Guys arrived on time ..they were very clear as to what our job required and in no time fixed our issue..I would highly recommend Doherty Plumbing!
    Janet halley Avatar
    Janet halley
    2/29/2024
    We have been using Doherty’s Plumbing for a number of years now and they are always on time, professional and very thorough. We are extremely pleased with all the work they have done for us. I would highly recommend them for any and all plumbing work you require.
    Christine Rutherford Avatar
    Christine Rutherford
    5/20/2023
    Always reliable and responsive we have used them on multiple tasks.Matt installed a modem toilet onto a vintage drain without difficulty. I have recommended them to my friends
    John Moore Avatar
    John Moore
    7/13/2024
    Arrived at the scheduled time, completed the work professionally and in a timely manner, and to our complete satisfaction, as has always been the case in the past. Staff are always polite and skilled.
    Roger Wilson Avatar
    Roger Wilson
    10/13/2024
    Responsive, reasonably priced and pleasant to deal with. Have used several times in the past and will continue to do so.
    Fiona Walliss Avatar
    Fiona Walliss
    9/13/2024
    The 3rd time I have used the Doherty team for Plumbing issues and I highly recommend them! Responsive, professional, polite and reasonably priced, all make for a great experience.
    Matt Lane Avatar
    Matt Lane
    2/29/2024
    Doherty's installed a tap in our warehouse. It was a particularly fiddly job and they delivered on time at a competitive price. Their staff were polite, professional and helpful.
    Kerrie King Avatar
    Kerrie King
    8/30/2023
    Came same day as I called to fix broken tap that couldn’t be turned off (had to turn water off at mains to stop flooding). Third time I’ve used them within 12 months for different issues. Very helpful, professional staff and reasonable pricing. Highly recommended.
    Garry & Wendy Grinsted Avatar
    Garry & Wendy Grinsted
    4/23/2024
    For reliable plumbing services, call 03 9877 5775 or 0417 577 432