A real story from FPP Plumbing
We recently got an emergency call from a homeowner in Frisco, TX. His water heater tank burst inside the garage – and when a tank gives out like that, it’s not a slow drip. It’s gallons of hot water pouring out at once, flooding everything in its way. By the time he noticed, the entire garage floor was under water.
A lot of people think water heaters just “stop heating” when they fail. The truth is different: when the internal steel tank corrodes through, it splits, and the water inside starts dumping out with full pressure. No warning, no mercy – just instant flooding.
When we arrived, the old unit was already done. The tank was cracked open, insulation soaked, bottom plate rusted through. There was no point talking about repairs – once a tank ruptures, it’s 100% replacement.
We installed a brand-new AO Smith water heater, set it up according to Texas Plumbing Code, secured all connections, did a full system purge, and verified pressure. After installation, we also checked for any structural damage around the area to make sure everything was safe and drying properly.
How Long Do Water Heaters Really Last? Here’s the part many homeowners don’t realize: •
Average life with zero maintenance: ~6 years After that, the inside of the tank usually starts rusting from the bottom up.
• If you flush it yearly and replace the anode rod: 8–12 years is realistic. Sometimes even 15, if water quality is good.
Most people never flush their heater or change the anode rod – and that’s why tanks fail early. Sediment builds up, pressure increases, corrosion accelerates, and eventually the steel gives out. That’s exactly what happened here.
Why a Burst Tank Is Dangerous
A ruptured water heater can cause:
• Mold growth inside walls
• Damage to drywall and flooring
• Electrical hazards
• Damage to garage items, HVAC equipment, water softeners, cars, etc.
In two-story houses, a burst tank located in an attic can even collapse ceilings. If you see water around your heater – don’t wait. A slow leak can turn into a burst tank in minutes.
Need help with a leaking or old water heater?
We install, replace, maintain, flush, and inspect water heaters across Frisco, Plano, McKinney, Allen, and nearby cities. If your unit is older than 6 years, making popping sounds, or showing rust – call before it becomes a flood.
If you have an emergency water leak – call anytime: https://fppplumbing.com/emergency-plumbing-services/
Need a new water heater installed? https://fppplumbing.com/water-heaters/
Looking for a plumber near you? https://fppplumbing.com
Want to see more real plumbing cases? https://fppplumbing.com/blog/
Manufacturer of the new AO Smith water heater we installed: https://www.aosmith.com/
Why do water heaters burst like this?
Most of the time it’s age + no maintenance. When a tank hits around 6 years with no flushing or anode replacement, the metal inside gets thin, rust builds up, and pressure starts eating the tank from the inside. At one point it just gives up – boom, the tank splits and floods the garage. Happens every week here in Frisco, Plano, McKinney.
Should I repair a leaking water heater or just replace it?
If the tank is leaking – there is no repair. A water heater tank can’t be patched or welded. Once it starts dripping, it’s already dead. The only smart move is full replacement. And if you replace it early (before it pops), you save your garage, drywall, and sometimes even your car from water damage.
How long does a water heater usually last in Texas?
Water heaters are rated for about six years of warranty, but after that it’s a gamble. It all depends on maintenance and the quality of the water in your home. In some cities water heaters last 15–20 years, and in other areas they fail at four years while still under warranty. Nobody can predict that. The main thing is proper maintenance, flushing the tank, checking the anode rod, and having water that’s not extremely hard. If all that is done right, the unit will last much longer.
