How Often Should I Book A Hot Water Service?

6 February 2025
Woman Calling A Plumber For Hot Water Issue

A functional hot water service is something we often take for granted–until there’s an issue with supply, temperature, or efficiency. While a sudden lack of hot water or supply issues can certainly be frustrating, the good news is that most of these problems can be avoided with a regular service.

If you’ve found yourself wondering how often you need to book a hot water service, we’re here to help! In this article, we’ll cover when to book a service, who to call, and how addressing potential issues early can save you time, money, and inconvenience.

Hot Water Servicing: General Recommendations

Whether it runs off gas, electric, solar, or heat pump technology, every hot water unit requires periodic servicing to offer the best performance. At its core, a service will ensure that your system is safe, efficient, and free from any issues that may affect its day-to-day operation.

Here are some general rules and recommendations to go by:

Annual Check-Ups: It’s best to have a licensed plumber inspect your system at least once a year, even if there are no noticeable issues. This will help to detect minor wear and tear before it leads to costly repairs.

Comprehensive Servicing Every 3 to 5 Years: Most manufacturers recommend a more detailed service every three to five years. This includes checking the anode rods (for storage systems), flushing sediment build-up, and inspecting all components.

More Frequent Servicing for Hard Water Areas: If you live in an area with hard water, mineral build-up can affect efficiency and longevity. In these cases, scheduling servicing every one to two years is recommended.

How Long Do Hot Water Systems Last?

The lifespan of your hot water system varies depending on the type and usage. Here’s a general breakdown:

  1. Mild-steel & Enamel-lined tanks: 5-10 years
  2. Copper tanks: 7-10 years
  3. Stainless steel tanks: 10+ years
  4. Heat pumps: 10 years

These are general guidelines, and the actual lifespan depends on factors like brand and maintenance. If your current hot water heater is out of date or inefficient, this could be the perfect time to upgrade. More efficient units, such as newer electric, heat pump, and solar based models, use less power and produce less emissions.

For further info, check out our recent guide on ‘Choosing the Best Hot Water System: A Comprehensive Guide to Electric, Gas, Solar, and Heat Pump Options

The Top 5 Signs Your Hot Water System Needs Attention

In addition to regular maintenance, there may be more urgent signs that you need to book in a service. Here are five of the most common:

Rusty or Dirty Water: Rusty water indicates corrosion or sediment build-up inside the tank, which could lead to leaks and water contamination. Replacing the unit prevents further damage.

Strange Noises and Smells: Sounds like banging or rumbling suggest sediment build-up, while foul smells often indicate a failing anode rod, which can lead to bacteria growth in the tank.

Water Pressure Problems: A drop in pressure is often caused by mineral deposits or clogged valves. This issue can worsen, causing further damage if left untreated. Addressing the problem early can restore optimal water pressure and prevent further issues.

Temperature Issues: If the water isn’t reaching your desired temperature, fluctuates, or runs out too quickly, it could be due to a faulty heating element or thermostat. An old system will continue to struggle, so upgrading to a new unit is often the best solution for consistent hot water.

High Utility Bills: If your water usage has remained the same but your utility bills spike, it might be a sign your hot water system is inefficient. A new, energy-efficient model can help lower your bills and improve performance.

Noticed any of the signs listed above? PlumbCall has qualified technicians who can handle hot water service maintenance, repairs, and installation. Our team can assist with hot water service work in Bendigo, Bundaberg, and various other corners of the country. 

Reach out to us now and connect with a local PlumbCall expert!

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What Happens During a Hot Water Service?

So, what will the actual service look like? Once a time has been arranged, a professional plumber will conduct a thorough inspection. This may include:

  1. Checking and flushing the tank to remove sediment build-up
  2. Inspecting the anode rod for corrosion (for storage tanks)
  3. Testing and calibrating the thermostat and heating elements
  4. Checking gas connections and burner efficiency (for gas systems)
  5. Inspecting pressure relief and tempering valves
  6. Checking for leaks, corrosion, and signs of wear

Please note that the scope of this work will depend on the type of unit, its age, and its current condition. 

Recommendations for Different Hot Water Systems

Different types of hot water systems have unique maintenance needs. Here’s a deeper look at the recommended servicing for each:

Gas Hot Water Systems:

  1. Annual Inspections: Gas systems should be serviced annually to ensure the burner is functioning efficiently, to check for any potential gas leaks, and to inspect the flue for blockages or signs of wear. This helps avoid any safety risks and ensures the system is running optimally.
  2. Sediment Removal: Over time, sediment can build up in the tank. Flushing the tank during service can prevent damage and maintain energy efficiency.

Electric Hot Water Systems:

  1. Annual Checks: Even though electric systems have fewer parts, it’s important to check the heating elements, thermostat, and tank for leaks. This helps detect any small issues before they become expensive repairs.
  2. Element and Thermostat Calibration: Over time, elements can lose efficiency, and thermostats may no longer function correctly. Regular servicing ensures accurate temperature control and prevents unnecessary energy consumption.

Solar Hot Water Systems:

  1. Inspections: Every two years, have your solar panels cleaned and inspected to ensure that no dirt, debris, or damage is affecting their efficiency. Clean panels absorb more sunlight, improving overall performance.
  2. Tank Maintenance: Every three years, the tank should be checked for corrosion or leaks. The anode rod should be replaced if it’s showing signs of wear to prevent rust in the tank.

Heat Pump Systems:

  1. Annual Servicing: A heat pump should be checked annually. This includes inspecting the fan, condenser, and evaporator coils to make sure that everything is running efficiently.
  2. Refrigerant Leaks: Heat pump systems rely on refrigerants to heat water. Any refrigerant leak can impact performance, so checking levels during each service is crucial.

The Benefits of Regular Hot Water Servicing

Professional Plumber Doing Hot Water Service

Booking regular servicing isn’t just about avoiding breakdowns—it also comes with several long-term benefits:

Extended Lifespan: A well-maintained system can last significantly longer, reducing the need for costly replacements.

Lower Energy Bills: A clean, efficient system uses less energy, saving you money on electricity or gas costs.

Better Water Quality: Removing sediment and checking for corrosion helps keep your hot water clean and safe.

Peace of Mind: Knowing your system is in good condition means one less thing to worry about in your home or business.

Who Can I Call for a Hot Water Service?

Not all plumbers specialise in hot water systems, so it’s important to contact a professional with experience in servicing your specific type of unit. After you’ve found a qualified plumber with the right expertise, they can inspect all of the key components, flush out any sediment, replace worn parts, and check for gas or electrical faults (depending on your system type).

If your system is covered under warranty, using an authorised technician can also help maintain coverage. In some circumstances, a service may also be required under the terms set out within your warranty agreement. 

Let PlumbCall Handle Your Next Hot Water Service

If it’s been a while since your last hot water service, now is the perfect time to schedule an inspection. A quick call to a licensed plumber can help keep your system in top shape and prevent major issues down the track.

With mobile plumbers available across the country, our focus is to leave you with a great ‘PlumbCall Experience’. We believe in setting a high level of service professionally; this starts with being courteous and friendly and finishes with a job done right, left clean and tidy.

Our promise to you is “25% of the bill if we don’t arrive when we say we will!” Our service technicians are also available nights and weekends, providing you with a genuine 24-hour service.

Book online and get a detailed quote within 48 hours!

We focus on customers’ specific needs and provide exceptional, reliable service.

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