Your hot water heater works hard behind the scenes. Until, one day, it doesn’t. Whether you’re dealing with cold showers, strange noises, or just an aging system, it’s not always easy to tell when it’s time to replace your unit. In this post, we’ll break down the telltale signs that your water heater is on its last legs, and what you can do about it before you’re left in the cold.
Your Water Heater Is 10+ Years Old
Most traditional tank-style water heaters last about 8–12 years with proper maintenance. According to the U.S. Department of Energy, water heaters account for about 20% of a home’s energy use (source: energy.gov). So when they get old, they don’t just risk breaking down, they can also cost you more every month in energy bills.
If your system is a decade old or more, it’s a good idea to start planning for a replacement, even if it’s still working.
You're Not Getting Consistent Hot Water
Does your water run hot, then cold, then lukewarm, and never seems to stay steady? That is a sign your heater may be struggling. Sediment buildup in the tank can reduce efficiency and capacity, making it harder to deliver hot water when you need it.
Strange Noises or Rumbling Sounds
That knocking or rumbling you hear? It’s likely hardened sediment inside the tank. As sediment builds up and reheats, it creates noise and forces your system to work harder. Over time, this can lead to cracks or leaks in the tank itself.
Discolored or Rusty Water
You’ve Spotted a Leak
Even a small pool of water under your water heater can spell trouble. Leaks may mean there is a fracture in the tank or issues with the connections. Either way, you’re at risk of water damage and system failure.
You’ve Had Frequent Repairs
If you’ve already sunk money into multiple repairs, replacing your hot water heater might be the more cost-effective option in the long run. New systems are more efficient, come with warranties, and provide peace of mind.
What Should You Do Next?
If you’re noticing any of these issues, don’t wait for a full breakdown. A proactive hot water heater replacement can save you time, money, and frustration, especially during Montana’s colder months.
At Plumb-Tech, we make the replacement process seamless and stress-free. Our licensed plumbers help you choose the right unit for your home and get your new system up and running.
Ready to Replace Your Hot Water Heater?
Whether your system is outdated, leaking, or just not cutting it anymore, Plumb-Tech is here to help. We’re Missoula’s trusted plumbing professionals, known for fast service, honest advice, and top-tier installations.
Call us today or click “Book appointment now” on this page to schedule your hot water heater replacement.
