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Homeowner Guide

What to Do When Your Water Heater Leaks: A Step-by-Step Emergency Guide

By Water Heater Leak Repair Specialists · September 30, 2026 · Colton, CA

It's 11 PM, there's water spreading across the garage floor, and you're wondering what to do first. Take a breath — this guide walks you through it in order. Print it, save it, stick it on the water heater itself.

Step 1: Keep everyone away from the water

Leaking water can be scalding hot, and it may be near electrical equipment. Move children and pets out of the area immediately and keep them out until the situation is resolved.

Step 2: Shut off the cold water supply

Find the shutoff valve on the cold-water pipe entering the top of the heater (usually a lever or round handle). Turn it clockwise (lever: perpendicular to the pipe). This stops new water from feeding the leak.

Step 3: Turn off the heat source

Gas: turn the control knob on the gas valve to OFF. Electric: switch off the water heater's breaker at the electrical panel. Never skip this — heating an empty or leaking tank damages it and creates hazards.

Step 4: Relieve pressure

Open a hot-water faucet somewhere in the house (a laundry sink is ideal). This lets pressure and remaining hot water drain safely instead of forcing its way out through the leak.

Step 5: If you smell gas, leave

Don't hunt for the source. Get everyone out of the house, don't flip switches, and call the gas utility's emergency line from outside. Call us after the home is cleared.

Step 6: Contain what you can

Towels around the base, a bucket under a dripping valve, valuables and cardboard boxes moved to higher ground. Don't wade into standing water near the electrical panel or outlets.

Step 7: Call (833) 713-2101

Our emergency line is answered 24/7. Tell us what you see — where the water's coming from, whether it's hot, how fast it's spreading — and we'll talk you through anything you haven't done yet, then dispatch a technician. Most emergency leak calls in the Colton area are reached quickly, and fitting or valve leaks are usually fixed on the spot.

What NOT to do

  • Don't try to seal a tank leak with epoxy or tape — it won't hold pressure and wastes critical time.
  • Don't keep resetting a tripped breaker — it tripped for a reason.
  • Don't drain the tank yourself unless we talk you through it — an improperly drained tank can be damaged further.

After the emergency: ask the technician to check your T&P valve, set the temperature to 120°F, and confirm you have a working shutoff valve. The best emergency is the one that never happens twice.

Need help now? Don't wait — call us now at (833) 713-2101. Our Colton team answers 24/7.

Frequently asked questions

Should I call a plumber or the gas company first?

If you smell gas: gas utility first, from outside the home. For water leaks with no gas smell: call us directly at (833) 713-2101 — we handle the full repair.

Will my homeowner's insurance cover the damage?

Sudden leaks are typically covered; long-term neglected leaks often aren't. Document everything with photos and keep our invoice — it records the failure professionally.

How long until I have hot water again?

Fitting and valve repairs restore hot water the same visit. Full replacements are usually completed same-day in the Colton area.

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