24/7 WATER HEATER LEAK REPAIR · LOS ANGELES · SAN GABRIEL VALLEY · SAN FERNANDO VALLEY
Water Heater Leaking? Here’s What to Do Right Now, and We’ll Be On Our Way.
Real people answer 24/7. We find exactly where the water is coming from, tell you straight whether it can be repaired, and give you a written price before any work starts.
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Do this first (it takes two minutes)
If your Granada Hills water heater is acting up, here’s what we see most:
Shut off the cold water supply valve on the pipe going into the top of the heater. That stops the tank from refilling.
Gas heater: turn the gas control knob to OFF. Electric heater: switch off its breaker.
Move anything that can get wet, and take a few photos of the leak and any damage.
Call us at (626) 956-3708. A person answers, day or night.
If you smell gas, don’t touch anything. Leave the house, then call SoCalGas at 1-800-427-2200 from outside, and call 911 if there’s damage or danger. Don’t turn lights or appliances on or off, and don’t try to fix the gas line yourself.
Can a leaking water heater be repaired?
Often, yes. If the water is coming from a valve, a fitting, or a connector, it’s usually a repair, and usually the same day. If the water is coming from the tank itself, it can’t be patched. A tank leaks when its steel shell has rusted through from the inside, and the only real fix is a new water heater.
Age matters too. The U.S. Department of Energy puts the life of a storage water heater at about 10 to 15 years and a tankless unit at about 20. A leak on a tank past its first decade is usually the heater telling you it’s time.

Where is it leaking from? That tells us almost everything
|
Where the water is
|
Most likely cause
|
Usually
|
|---|---|---|
|
Top of the heater |
Loose inlet or outlet fitting, a worn flex connector, or the anode port |
Repair |
|
Relief valve or its pipe |
Too much pressure or heat, or a failing temperature-and-pressure relief valve |
Repair (and find out why it opened) |
|
Drain valve near the bottom |
Worn or loose drain valve |
Repair |
|
Bottom of the tank or under the jacket |
The tank has rusted through |
Replace |
|
Tankless unit |
A fitting, the relief valve, or the heat exchanger |
Fittings: repair. Heat exchanger: often replace |
|
Drips only on a cold start |
Condensation, especially on a new or high-efficiency heater |
Often nothing to fix |
Water around a heater isn’t always the heater. A leaking supply line or a hot water line under the slab can pool in the same spot. We check before we quote. If it turns out to be a slab leak, our leak detection team finds the exact spot.

What it costs
You get a written price before any work starts. To give you a realistic idea before you call:
Replace it right: the code items we include
A new water heater is only as safe as its installation. On every replacement, we:
Strap the heater against earthquakes. California Health & Safety Code §19211 requires new and replacement water heaters to be braced, anchored, or strapped.
Install a drain pan where the code calls for one. The California Plumbing Code requires a pan, at least 1½ inches deep with a ¾-inch drain to an approved location, when a heater sits in an attic or over a floor or ceiling that a leak would damage. That’s the pan that saves the ceiling below a closet heater.
Run the relief valve discharge to a safe spot outside, turned down and ending 6 to 24 inches above the ground, with no threads on the end, so a relief valve that opens can’t scald anyone or flood the house.
Pull the permit. For a single-family home in the City of Los Angeles, LADBS requires a permit to replace a gas water heater unless the contractor is a registered Certified Licensed Contractor doing a same-size, like-for-like swap. Pasadena, Glendale, and the other cities we serve have their own permits. We handle it either way.
Garages, closets, attics and condos
Where your heater sits changes how urgent a leak is. A garage heater on a platform can drip for a while before it does real damage. A heater in a hall closet or an attic can soak drywall, flooring, and the ceiling below in an hour. In apartments and condos, a leak often shows up first in the unit downstairs.
If you rent or live in a building with an HOA, call us anyway. We can work with your landlord or manager, and we’ll give them the same written price we give you.

What we do
Leak diagnosis
We find the source (tank, valve, fitting, line or slab) before we quote anything.
Valve & fitting repair
Relief valves, drain valves, connectors, and fittings, usually fixed on the first visit.
Need a repair that isn’t a leak? See our water heater repair in Los Angeles.
Why Los Angeles chooses Advantage Plumbing & Rooter
We answer 24/7
Real people answer, day or night, weekends and holidays. Not a call center.
Written prices up front
You approve the price before we start. No surprises on the invoice.
Licensed, bonded & insured
CA License #1067555 (verify at cslb.ca.gov). Workers’ comp included.
Family-owned since 1997
27+ years of sewer and drain work. We compete with the national chains by doing it right.
Workmanship guarantee
We don’t leave until the job is done right, and we stand behind our work.
Same-day service
Request online, and we confirm your appointment within one hour.
How it works
Call or request online
We confirm your appointment within one hour.
We diagnose & quote
Our licensed team finds the source and gives you a written price.
We fix it, often same-day
Repair or replace, installed to code and guaranteed.
Water heater leak repair near you
We cover 30+ communities from our base in La Crescenta-Montrose, 24/7.
Rated 5.0 ★ across 300+ reviews


Water heater leaking: FAQs
Stop the Leak. Get Your Water Heater Back.
Licensed water heater leak repair and replacement across Los Angeles since 1997. Free estimate, confirmed within one hour.
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CONFIRMED WITHIN ONE HOUR
🔒No obligation. Confirmed within one hour. Never shared.
