Water at the base of the tank means one of three things, and only one of them is a quick fix.
A leak at a fitting or a valve connection is genuinely a quick fix — tighten it, reseal it, or replace the fitting, and the tank itself is fine. Condensation during a cold snap gets mistaken for a leak too, especially on a tank sitting in an unheated garage. Both are worth ruling out before anyone assumes the worst.
A T&P valve that is discharging water is a symptom, not a nuisance, and it should never simply be capped or plugged off — it is doing its job of relieving excess pressure or temperature, whether from a faulty valve, thermal expansion with nowhere to go, or a setpoint that is too high, and blocking it turns a warning into a hazard. Water actually weeping from the tank body itself, by contrast, means the tank is corroding from the inside and needs to be replaced, not patched, because pressure that finds one weak spot in aging steel will find another.
Describe what the tank is doing and get matched with a licensed plumber who can tell you what it actually needs.
Get Matched With a PlumberA quick description is enough — we will follow up to narrow it down and get someone out.