Signs it’s time to replace your water heater
August 2026 · Bloomington Water Heaters
Water heaters rarely die without warning, they tell you for months. Catch the signs and you replace on a Tuesday you chose, at a scheduled price. Miss them and you’re mopping the basement at 6am. Here’s what to watch for.
It’s past its tenth birthday
A standard tank lasts 10–12 years in Bloomington’s moderately hard water; the first two digits of the serial number’s date code tell you the year (or just send us a photo of the sticker). Past ten, the question isn’t whether it will fail but when, and every year after is borrowed time on a steel tank full of 50 gallons of water sitting over your floor.
Rust-colored hot water
Run a hot-only tap into a white bucket. If the water comes out tea-colored, and the cold side runs clear, the inside of the tank is rusting, which means the glass liner has failed and the anode rod gave up long ago. There’s no repair for a rusting tank. Plan the replacement now, while it’s still a plan.
Rumbling, popping, or kettle noises
That sound is sediment baked onto the bottom of the tank, boiling the water trapped underneath it. A flush helps if it’s caught early, but years of buildup insulate the burner from the water, your gas bill creeps up, recovery slows down, and the extra heat stresses the steel. A loud tank over ten years old is telling you its plans.
Moisture or weeping around the base
Check the fittings first, a drip at a valve or supply line is a cheap repair. But dampness seeping from under the jacket, or a slow ring of rust at the base, means the tank body itself has started to let go. That never reverses, and the polite weep can become a burst seam without further notice. Shut-off valve, then phone.
It can’t keep up like it used to
Showers run lukewarm sooner, the second shower is a gamble, the recovery between uses stretches out. Sometimes that’s a fixable part, a failed element on electric, a lazy gas valve. On an older unit it’s usually sediment eating the effective capacity. Our rule: under 8 years old, diagnose and repair; over 10 with fading performance, put the repair money toward the next unit.
The math of waiting
Replacing on your schedule: a phone quote, a chosen morning, hot water by dinner, $2,200–$2,800. Waiting for failure: the same install plus soaked drywall, ruined storage, and a possible insurance claim, the average tank-failure water damage claim runs into five figures nationally. If your heater is showing two or more signs on this list, calling this week is the cheap option.