How Long Does a Hot Water System Last?
Typical lifespans for gas, electric, continuous-flow and heat pump systems, and the signs yours is near the end.
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Typical lifespans
Gas storage units usually last around ten to twelve years, electric storage units around twelve to fifteen, and continuous-flow, heat pump and solar systems can last longer with servicing. Many factors affect this, including water quality, usage and maintenance.
Signs it is ending
Water leaking from the base of the tank, rusty or discoloured hot water, rumbling noises, hot water running out sooner than it used to, and repeated faults are all signs.
Making it last longer
Replacing the sacrificial anode every few years, testing the relief valve every six months and servicing continuous-flow and heat pump units can add years.
Planning ahead
If your unit is over ten years old, start thinking about what you would replace it with. Planning lets you compare heat pump, solar and gas options and any rebates rather than choosing in a hurry. Keep your purchase records, as warranties often depend on the installation date and regular servicing. A planned replacement is usually less stressful and gives you time to compare options.
Hampton Park soil and pipes
Hampton Park sits on heavy grey clay over sandier ground towards Lyndhurst, and that clay swells in a wet winter and shrinks and cracks in a dry summer. The older homes west of Hallam Road were mostly connected with earthenware sewer pipe in short lengths, and every joint is a place for roots to get in once the ground moves. Galvanised steel water pipe from the same era rusts from the inside, narrowing the bore and eventually leaking. On the newer estates, PVC drains are tougher, but trenches that were not compacted properly can settle and leave dips that hold grease and paper. We use a drain camera and pressure testing to see what is actually happening rather than guessing.
Related services
- Emergency plumbing
- Blocked drains
- Hot water repairs
- Gas fitting
- Hot water replacement
- Solar and heat pump
- Leaking taps
- Burst pipes
- Toilets
- Leak detection
- Sewer and relining
- Stormwater
- Gutters and roofing
- Bathrooms
- Kitchens and laundries
- Pressure and backflow
More guides
Questions on this topic
What is the first thing to check when there is no hot water?
Check the power or gas supply, the circuit breaker, the pilot light or the controller error code.
Can a leaking tank be repaired?
No. Once the tank itself leaks, it needs replacing.
Why Hampton Park homes choose us
We know the 3976 housing
Brick veneer from the 1980s and 1990s, older homes near the original centre and newer streets to the east: we work on all of them every week.
Straight answers
We tell you what is wrong, what it takes to fix and whether it can wait. No upselling.
Fixed price, agreed first
You see the price before work starts. Larger jobs get a free written quote.
Clean and careful
Boot covers, drop sheets and a tidy finish. We test the work with you before we leave.
Get a free quote
Tell us what is happening and a licensed Hampton Park plumber will call you back.
How quoting works
Ring 03 7075 3463 or send the form with a short note, and a photo if you have one. A licensed plumber calls you back, asks a few questions and books a time. On site they find the cause, talk you through your options and give you a fixed price. Nothing starts until you say yes, and larger jobs get a free written quote you can take away.
Need a plumber in Hampton Park?
Hampton Park, Lynbrook, Lyndhurst, Narre Warren South and nearby. No rates online: the plumber finds the fault, then gives you a fixed price.