United States guidance50 states + DC context

Plumbing answer · National guidance

What should I do when a water heater is leaking?

Treat active water around a water heater as time-sensitive, but do not use the puddle location alone to diagnose the failed part. First leave the area if you smell gas, a carbon-monoxide alarm sounds, or water is near energized equipment; those hazards override leak investigation.

From a safe, dry position, record where water first appears, whether it is still flowing, the heater type shown on its label and any visible corrosion. Do not dismantle the unit, block a relief outlet or improvise a fuel or electrical shutdown; arrange an inspection that can identify the source and decide whether repair is possible.

Put safety before diagnosisGas odor, a sounding carbon-monoxide alarm, or water near electrical equipment changes this from a leak-observation task to an emergency-safety task.

Need a plumber?Confirm request and continue to call

Location changes the boundary, not the evidence

Where is the property?

Choose a state and optionally add a city and ZIP. This does not create a separate location page; it makes the limits of the answer visible.

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Property ZIP code

U.S. national guidance

What changes after you choose a location?

Choose a state to make the geographic boundary explicit.

A ZIP helps identify possible utilities and service areas, but it does not prove jurisdiction, address-level coverage or an available plumber.

Applies nationallyThe safety and observation sequence on this page is general U.S. guidance.

Must be confirmed locallyUtility ownership, permits, trade licensing, rental responsibility, codes, prices and provider availability require current evidence for the exact property.

Start with observable differences

Which pattern best matches the home?

Water first appears above or at a connection

A visible connection is useful inspection context, but water can travel along piping or the cabinet and does not prove which component failed.

Notice next: Record the first visible wet point and whether it changes while no hot-water fixture is being used.

Water appears near a discharge pipe

Discharge can have more than one operating cause. Do not cap, plug or manipulate a relief path.

Notice next: Note whether discharge is continuous or intermittent without touching the valve.

Water collects around the base

A base puddle may come from the tank, a higher connection, drainage or an adjacent source; inspection is required before a repair-or-replace conclusion.

Notice next: Photograph the dry-to-wet boundary from a safe position and note whether the water is actively spreading.

Safe observation

What should you record before the call?

A short, factual description helps the next professional choose the right first inspection without treating a symptom as proof.

These observations help scope an inspection; they do not establish that the tank, a connection, a valve or another source has failed.

What to record

Whether the heater label identifies it as electric, gas, heat-pump or another type.
Where water first becomes visible, rather than only where it finally pools.
Whether flow is active, intermittent or no longer visible.
Model and serial information, approximate age only if supported by the label or records, and any visible corrosion.
Whether a gas odor is present, a carbon-monoxide alarm is sounding, or water is near electrical equipment.

Stop and get appropriate help

Leave the suspected area and call emergency services from a safe location if you smell gas; do not operate switches, flames or a phone in that area.
Leave for fresh air and call emergency services if a carbon-monoxide alarm sounds; do not re-enter until responders say it is safe.
Do not enter standing water or touch wet electrical equipment to reach a control or breaker.

Move from information to action

Who should you contact first?

Emergency services or the appropriate gas/electrical emergency party

A gas odor, carbon-monoxide alarm, fire, shock risk or other immediate life hazard is present.

Call only after leaving the suspected area
State the alarm, odor or electrical condition before discussing the water leak

A qualified plumber or manufacturer-authorized water-heater technician

Water is active, recurring, unexplained or associated with the heater or its connections.

Heater type and model
First visible leak location
Photos taken from a safe dry position

Check local call availability

Want a plumber to inspect the plumbing problem?

This guide can help organize the symptoms, but it cannot inspect the property or confirm the repair. Confirm the request details to prepare a call that checks whether a participating provider can accept a new plumbing-service request.

Describe what is happening, where you notice it, and when it began.
Share any safe observations you recorded without dismantling equipment.
Ask what the visit includes before authorizing work.

Confirm the request, then continue to call

Plumbing availability and job acceptance are confirmed on the call.

Call Home Help is not the service contractor. If a connection becomes available, calling connects you with a participating third-party provider and we may receive compensation. Availability and job acceptance are confirmed on the call.

Short answers

Questions people ask before the call

Does water around the bottom mean the tank has failed?

Not by itself. Water can travel from higher connections or nearby sources, so the visible puddle requires an in-person inspection.

Can I block a dripping relief pipe?

No. Do not cap or block a relief path; record the discharge pattern and have qualified personnel evaluate it.

Can this page tell me whether to repair or replace the heater?

No. That decision depends on the inspected failure, equipment condition, model, parts and warranty information, none of which can be established from a generic symptom.

Sources and boundaries

What supports this guide?

U.S. EPA WaterSense — Home MaintenanceLeak, toilet, faucet, fixture and household water-maintenance observations. Scope: national. Confirm address-specific requirements with the relevant local authority or qualified professional.
U.S. Department of Energy — Consumer Water HeatersWater-heater system types, selection factors and energy context. Scope: national. Confirm address-specific requirements with the relevant local authority or qualified professional.
U.S. Consumer Product Safety Commission — Carbon Monoxide Fact SheetCarbon-monoxide alarm response and qualified service for fuel-burning equipment. Scope: national. Confirm address-specific requirements with the relevant local authority or qualified professional.
U.S. Pipeline and Hazardous Materials Safety Administration — Recognizing and Responding to Pipeline EmergenciesNatural-gas odor emergency response boundary. Scope: national. Confirm address-specific requirements with the relevant local authority or qualified professional.

Educational information only: this page cannot inspect the property, diagnose hidden work, provide legal advice, quote a repair or promise service availability.

Sources support the general guidance shown here. Address-specific rules, responsibility, price and availability still require current local confirmation.

If conditions are unsafe or rapidly worsening, stop troubleshooting and contact the appropriate emergency service or qualified local professional.