We Use Hot Water Every Day—Until It Stops Working
It’s easy to take hot water for granted. It’s there for your 7 AM shower, your relaxing bath at the end of a long day, or even just to help you tackle the dishes. But behind the scenes, your hot water heater is working hard—until one day, it stops.
If you’ve started noticing changes like lukewarm water, leaks, strange noises, or even rust-tinted water, it could be a sign that your tank is wearing out. In this post, we’ll walk you through how long water heaters usually last in BC homes, the top signs yours might be on the way out, and why many homeowners are making the switch to efficient, tankless systems.
How Long Does a Hot Water Tank Last?
Most traditional hot water tanks last around 8 to 12 years, depending on how well they’ve been maintained.
Here’s what can impact your tank’s lifespan:
- Hard water (high in minerals) can leave deposits that cause damage over time
- Poor installation or low-quality materials
If your tank is over 10 years old, it’s smart to start thinking about a replacement before it fails.
Signs It’s Time for a New Tank
Your water heater may be trying to tell you something. Look out for:
- Rust-coloured water when using hot taps
- Strange noises—like rumbling, banging, or popping
- Water pooling around the bottom of the tank
- Inconsistent or quickly cooling hot water
- Higher-than-usual energy bills
These are all signs your system is running inefficiently—or worse, heading toward failure.
What Causes a Hot Water Tank to Fail?
Several things can cause your water heater to give out:
- Sediment buildup: Minerals from hard water settle at the bottom, reducing efficiency and damaging the tank
- Worn-out anode rod: This metal rod protects the inside of your tank from rust. Over time, it gets used up, once it’s gone, your tank starts to corrode
- Thermostat or pressure valve issues: If these parts break, your water may not heat properly
Not sure what’s going on? We’re happy to take a look and help you figure it out.
Why More Homeowners Are Choosing Tankless
Unlike traditional tanks, tankless water heaters don’t store hot water, they heat it on demand. This makes them:
- More energy-efficient
- Longer-lasting (up to 20 years!)
- Space-saving
At Acorn, we often recommend Navien tankless water heaters. They’re reliable, efficient, and perform well in our Lower Mainland climate.
Thinking of upgrading? If your tank is 10+ years old, now’s a great time to explore whether a tankless system might be the smarter long-term investment for your home. Contact Acorn’s plumbing team today.

How Acorn Service Group Can Help
We install and service both traditional and tankless hot water systems across the Lower Mainland. Whether you need a quick repair, expert advice, or a full replacement, we’re here to help with professional service and honest recommendations.
