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My Water Heater Is Leaking — Should I Repair It or Replace It?
Find where the water starts, and the decision nearly makes itself: leaks at valves, fittings, and supply connections are repairable, while moisture seeping from the tank body means internal corrosion has broken through — and a corroded tank cannot be patched, only replaced. On units past ten years, even small repairs deserve a replacement quote alongside them.
Start with a towel, not a decision
Dry everything, then watch patiently. Water reappearing at the drain valve near the floor, at the relief valve on the side, or at the supply fittings up top names a serviceable part. Moisture returning along the tank’s bottom seam — or rust streaks descending from beneath the outer jacket — names the tank itself. Ten observant minutes here is worth more than any amount of internet research, and it’s the same triage our technicians perform on arrival.
The repairs worth making
A worn drain valve is a modest fix often mistaken for catastrophe. A weeping relief valve may itself be tired — or may be reporting excess pressure in the home, a separate matter worth addressing regardless. Loose supply connections tighten or re-fit routinely. Water heater repairs run $150 to $800 in metro Atlanta depending on the part, and on a unit under eight years old, they’re money sensibly spent.
Why the tank body writes its own ending
Inside every tank, a sacrificial anode rod corrodes on purpose so the steel doesn’t. Once the rod is spent — typically within the first several years — corrosion turns to the tank walls, working from the inside where no one sees it. When water finally weeps through, the steel is compromised throughout, not just at the drip. That’s why no sealant, weld, or wish holds: the leak you see is the first of many already scheduled.
The age tiebreaker
Here’s the gentle truth we share at kitchen tables across Atlanta: a repairable leak on a twelve-year-old heater is usually the opening act. The tank behind that fixable valve carries the same twelve years of corrosion, and several hundred dollars spent there often just books a second visit. Past the ten-year mark, ask for both numbers — repair and replacement — and let them talk. Replacement runs $2,000 to $4,500 installed for a quality tank, or $5,000 to $7,000 for a Navien tankless conversion if endless hot water has been on the wish list anyway.
One caution while you decide
A tank-body leak only widens. Shut the cold supply valve above the unit, cut the gas or breaker, and treat it as a same-week decision rather than a someday one — the water damage version of this story costs multiples of the plumbing version.
We’ll diagnose the source and set both numbers in front of you, honestly and without pressure, anywhere in Atlanta, Roswell, or Sandy Springs. Call now for same-day service.
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Reviewed by Peach Plumbing, GA State Master Plumber License #MP210672
Published Date: September 25, 2026 | Last Updated Date: September 25, 2026