Hot Water Systems

Repairs and replacements for heat pumps, solar, gas and electric systems, with prices for supply and installation.

Do you need a new hot water system?

Expert Plumbing & Gas Services install electric, gas and solar hot water systems throughout Melbourne’s north and surrounding suburbs. We also service and repair gas hot water systems, electric hot water systems and solar hot water systems. Whatever your hot water requirements, our experienced team is here to help.

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Fast friendly service

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Reliable electric, gas or solar hot water systems

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Expert advice & guaranteed workmanship

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Qualified experienced plumbers

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“Very highly recommended."

“We had our hot water gas cylinder inspected and replaced within 24hrs. Plumber arrived within hrs of 1st call and advised it needing replacing. We had one installed the next morning. Service 1st class all the way thru including helpful phone operator and regular texting of eta’s etc. Very highly recommended.”

Regards, Bussauto
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Would You Like To Do Your Own 'No Hot Water' Problem Solving?

Follow this link to our home detective guide to identifying what your hot water issue is likely to be. We let you know where there may be steps you can take to resolve matters yourself.

We also let you know when it’s best to call in an Expert.

We’ve proudly served thousands of happy customers with fast, friendly, and reliable service.

Our rating speaks for itself—see why so many people trust us time and time again.

Our Brands

Explore our other services At Expert Plumbing, we pride ourselves on quality work, which relies on quality brands and products. We have put together a small selection of the many brands we know and trust for all your plumbing, hot water and heating needs.

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Frequently Asked Questions

Expert Plumbing & Gas Services provides professional installation, repair, and maintenance of hot water systems for homes and businesses. Whether you need a gas, electric, or solar hot water unit, our experienced team ensures reliable, efficient, and safe hot water solutions. We help prevent unexpected failures, improve system efficiency, and ensure your household or business has a constant supply of hot water when you need it.

Why is my hot water running out too quickly?

This can happen due to:

  • A hot water unit that is too small for your household needs

  • A faulty PTR or pressure relief valve leaking constantly

  • Sediment build-up reducing the tank’s capacity

  • Issues with thermostatic mixing valves

Yes. Solar hot water systems are reliable and energy-efficient, particularly in Australia. Most systems have a gas or electric booster to ensure hot water on cloudy days.

Signs your system may need replacing include:

  • Water takes too long to heat

  • Frequent breakdowns or repairs

  • Leaks around the tank

  • Rusty or discoloured water

Regular servicing, ideally every 1–2 years, helps maintain efficiency, prevent breakdowns, and prolong the life of your system.

For safety reasons, hot water system repairs should always be handled by a licensed plumber. Gas and electric systems can be dangerous if not repaired correctly.

Most hot water system installations can be completed in a few hours. Larger systems or replacements that involve plumbing or gas upgrades may take longer.

Read more on the Expert Plumbing Blog

Hot water systems

The Hot Brand in Hot Water: Thermann

Founded in 2012, Thermann has quickly become the fastest growing hot water brand in Australia and New Zealand. We have put together some FAQs for everything you need to know, including models, prices, manuals and more.

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