If your hot water system is acting up, you’re not alone. These systems work hard every day, and over time they wear out. But how do you know when it’s time for a full replacement versus a simple repair? In this guide, Perth Local Plumbing & Gas helps you spot the signs early — so you’re not left with a cold shower or a surprise leak.
How long does a typical hot water system last?
Most hot water systems last between 8 to 12 years, depending on the type and how well they’ve been maintained. Gas systems may have a slightly shorter lifespan than electric or solar units, but regular servicing helps extend the life of any unit.
Tip: If your unit is over 10 years old, start planning for a replacement — even if it’s still working.
What are the warning signs your hot water system is failing?
Here are the common red flags:
- Inconsistent water temperature — Hot one minute, cold the next? It’s often the first sign of trouble.
- Rusty or discoloured water — Could indicate tank corrosion.
- Leaks around the tank — Even small drips should not be ignored.
- Rumbling or banging noises — Sediment build-up inside the tank can lead to serious damage.
- Higher energy or gas bills — Older units are often inefficient.
Should you repair or replace your system?
Repair may be enough if:
- The system is less than 8 years old.
- The issue is minor (e.g. thermostat or valve).
- There’s no rust or significant leaking.
Replacement is the smarter choice if:
- Your unit is nearing its lifespan.
- Repairs are frequent and expensive.
- You want a more efficient or environmentally friendly system.
Perth Local Plumbing & Gas can assess your situation and give honest advice on whether repair or replacement is more cost-effective.
What type of system should you choose?
There are several hot water systems available, each with its own pros, cons, and suitability for different types of households. Here’s a simple breakdown to help you decide what might be best for your Perth property:
- Gas Storage Hot Water System
Best for medium to large homes, gas storage systems are known for their fast recovery times and reliable hot water delivery. However, installation requires professional gas fitting, which adds to the initial cost. - Electric Storage Hot Water System
Ideal for smaller households, electric storage systems are appealing due to their lower upfront cost and easy installation. The downside is higher ongoing energy bills, especially during peak usage times. - Continuous Flow (Instantaneous) Hot Water System
Suitable for homes of any size, continuous flow systems are compact, efficient, and only heat water when needed. While they save energy, they may struggle to supply multiple outlets at the same time. - Solar Hot Water System with Gas Booster
Great for eco-conscious households in Perth, this option uses renewable solar energy to reduce your carbon footprint. A gas booster ensures hot water even on cloudy days. It offers low running costs, but the initial setup cost is higher than other systems.
Why choose Perth Local Plumbing & Gas?
As a trusted local team, Perth Local Plumbing & Gas has helped hundreds of Perth homes upgrade or replace their hot water systems. We offer:
- Advice on the best system for your home
- Licensed gas fitting and plumbing
- Full installation and removal of your old unit
- Prompt, professional service across Perth and nearby suburbs
Whether it’s a leaking hot water system, loss of pressure, or total breakdown — we’ve got your back.
Final thoughts: Don’t wait for a breakdown
A failing hot water system is more than an inconvenience — it can lead to costly water damage or unsafe conditions. If you’re seeing the signs, contact Perth Local Plumbing & Gas today. We’re here to help with fast, friendly service across Perth and surrounding areas.
Frequently Asked Questions (FAQs)
How do I know if my hot water system is about to fail?
Look for signs like inconsistent temperatures, water leaks, rust, or strange noises. These often mean your system is nearing the end of its life.
Can I replace my hot water system myself?
No. In Western Australia, all hot water system replacements and gas fitting must be done by a licensed plumber or gas fitter. DIY is not only unsafe — it’s illegal.
What’s the most energy-efficient hot water system?
Solar hot water systems with gas boosters are the most energy-efficient long-term. Continuous flow gas systems are also very efficient for homes with moderate usage.
How long does installation take?
A standard hot water system replacement in Perth typically takes a few hours. Complex upgrades or relocations may take longer, but we aim to minimise downtime.
Need help today?
If you’re dealing with a faulty or outdated hot water unit, don’t wait for a complete breakdown. Contact Perth Local Plumbing & Gas for fast, honest, and expert advice.
📞 Call us today or book online — we service all of Perth and surrounding, and we’re here when you need us most.
