Water Heater Leak? What Florida Owners Do Now

A standard Florida water heater holds 40–80 gallons. When the tank fails — from corrosion, a cracked fitting, or a failed pressure relief valve — that water goes somewhere. Usually your garage, utility room, or the rooms adjacent to it. Here's what to do the moment you discover a water heater leak.

Step 1: Shut Off the Water Supply

There's a cold water shutoff valve on top of the water heater (the pipe that feeds cold water into the tank). Turn it clockwise to stop water from continuing to fill and leak from the tank. If it's frozen or stripped, shut off the home's main water supply.

Step 2: Shut Off the Power or Gas

For electric water heaters: locate the breaker for the water heater in your electrical panel and switch it off. For gas water heaters: find the gas shutoff valve on the gas line feeding the heater and turn it to the off position. Don't leave power or gas running to an empty or leaking tank.

Step 3: Assess the Scope

Determine if this is a slow leak (dripping fitting, corrosion at the base) or a catastrophic failure (cracked tank, blown pressure relief valve). A slow leak over days or weeks is harder on your structure than an acute failure — hidden moisture has time to penetrate subfloor and wall cavities.

Common Florida Water Heater Failure Points

• Corroded tank bottom: Florida's mineral-rich water accelerates anode rod depletion. When the anode rod fails, the tank corrodes from the inside. Average lifespan is 8–12 years in Florida vs. 12–15 years in other climates.
• Failed pressure relief valve: The TPR valve opens if pressure or temperature exceeds safe limits — this can discharge significant water quickly.
• Loose fittings at connections: The hot and cold water connections at the top of the tank are common drip points.
• Condensation (tankless units): In high-humidity Florida, condensate lines on tankless water heaters can clog and overflow.

What Your Insurance Covers

Most standard homeowner's policies cover sudden and accidental water heater failures — meaning a tank that failed unexpectedly, not one that was leaking slowly for months. The damage to your floors, walls, and belongings is typically covered. The water heater unit itself is usually not covered (it's a maintenance item). Gradual leaks that were ignored may be denied.

The Hidden Damage Problem

Water heaters are often in garages or utility rooms with concrete floors — which makes homeowners think cleanup is simple. But water flows under the drywall at the garage perimeter, under door frames, and into adjacent living spaces. The drywall sitting on the slab soaks water up like a wick and becomes a mold habitat within 24–48 hours in Florida's climate.

If the leak was significant or may have been slow and ongoing, have a restoration company check it with moisture meters: call or text CFDR at 321-420-7274.