Our phone line is open 24/7 for water heater emergencies. While you wait, turn the cold water valve on top of the heater clockwise to stop the refill, and switch off the gas control or the breaker so nothing keeps heating a tank that is losing water.
Most repair calls come down to a handful of parts: the thermostat, the heating element or burner assembly, the thermocouple, the anode rod and the temperature and pressure relief valve. If the tank itself has failed, we will tell you plainly and point you to water heater replacement instead of selling a repair that will not hold.
Emergency water heater leak: what to do right now
Water on the floor around the heater is not always a failed tank. Find where it is coming from before you decide how bad it is, but do the shutoffs first.
If you smell gas and SoCalGas is your provider, leave the house and call 1-800-427-2200 from outside or from a neighbor's. Call 911 if anyone is in danger. Do not touch light switches on the way out.
Do this while you wait
- Turn off the gas control knob or the electric breaker for the heater
- Close the cold water shutoff valve above the heater (clockwise)
- Open one hot tap upstairs to relieve pressure
- Move boxes, paint and valuables away from the water
- Put a bucket under a slow drip and keep kids and pets out of the area
- Take a photo of the leak and the data label for the plumber
Tank, connection or relief valve: where the water is really coming from
A dripping connection and a rusted-through tank look similar from across the garage, but they are very different repairs. Dry the floor, wrap a dry paper towel around each fitting, and see which one gets wet first.
Water that is seeping from the bottom of the jacket, or that shows rust streaks down the tank, usually means the steel liner has failed. That is the one leak that cannot be patched.
| Where it leaks | Likely cause | Usually repairable? |
|---|---|---|
| Top fittings | Loose or corroded nipples and connectors | Yes |
| Side valve with a pipe to the floor | Temperature and pressure relief valve weeping, often from high pressure or scale | Yes, but find the cause |
| Drain valve at the bottom | Worn washer or sediment on the seat | Yes |
| Electric element flange | Failed gasket | Yes |
| Underneath the tank body | Corroded tank wall | No, replace |
Need water heater repair in Westminster? Our phone line is open 24/7.
Call (714) 750-8637No hot water, or only lukewarm: the usual suspects
A heater that gives lukewarm water or runs out fast has a short list of likely failures. The fix depends on whether it burns gas or runs on electricity.
- Gas, pilot out or burner will not stay lit: a worn thermocouple or a dirty pilot assembly is common, and a failed gas control valve is less so.
- Electric, no heat at all: a tripped high-limit reset, a dead upper element or a failed thermostat.
- Electric, hot for a few minutes then cold: the lower element or lower thermostat is gone, so only the top third of the tank heats.
- Rumbling or popping sounds: scale baked onto the bottom of the tank traps steam under it.
- Rusty or smelly hot water only: the anode rod is likely used up and the tank is next.
Tankless units have a different set of parts. See tankless water heater service for error codes.
What roughly 14.7 grains of hardness does inside your tank
The City of Westminster's 2024 water quality report lists average total hardness at 252 mg/L, which is roughly 14.7 grains per gallon, with readings as high as 413 mg/L. That is hard water. Minerals drop out when water is heated, so they coat electric elements, settle in a layer on the tank floor and clog the relief valve seat.
A heater that has never been flushed wastes fuel and fails sooner. A yearly flush is the cheapest repair there is. A water softener slows the buildup at its source.
Yearly flush, in outline
- Turn off the gas control or the breaker
- Close the cold supply and open a hot tap
- Attach a hose to the drain valve and run it to a drain or the yard
- Drain until the water runs clear
- Briefly open the cold supply to stir up sediment, then drain again
- Refill fully before restoring power or gas
An older plastic drain valve can snap or clog with scale. If it will not flow or will not close, stop and call.
Same-day appointments are offered when available. Call to ask about water heater repair.
Call (714) 750-8637Pilot lights, thermostats and elements: the smaller repairs
Relighting a pilot is easy to try, and the instructions are on the label. If it lights but goes out again within a minute, the thermocouple is probably failing. A sooty burner or a yellow flame instead of blue points to a venting problem that needs attention right away.
For electric heaters, the elements and thermostats are tested with a meter, then replaced as a pair when one has failed. If an element was coated in scale, the second one is typically not far behind.
Repair or replace: a fair way to decide
Repair when the tank is sound and the part is cheap relative to the unit. Choose a new heater when the tank leaks, the unit is past its normal lifespan, or repairs keep stacking up.
We give you the price before work starts, so you can compare a repair against a new unit on real numbers. Repairs are often a few hundred dollars. A full replacement can run into the thousands, depending on size and fuel type. These are general figures and vary by job.
| Situation | Better choice |
|---|---|
| Bad thermostat, element or thermocouple on a sound tank | Repair |
| Weeping relief valve with normal pressure | Repair |
| Rust or water at the base of the tank | Replace |
| Several repairs in a short span on an old unit | Replace |
| Sediment so heavy the flush will not clear it | Likely replace |
The heater in a 1971 garage or hall closet
Westminster's median home was built around 1971, and many original heaters sat in a garage corner or a tight closet. The old piping around them may be galvanized or aging copper, and corroded unions are a common leak point.
Check that the tank is strapped to the wall. California Health and Safety Code section 19211 requires water heaters to be braced, anchored or strapped, and loose straps are an easy fix during a repair visit.
According to California Health and Safety Code section 19211, water heaters must be braced, anchored or strapped to resist earthquakes. Repairs follow the California Plumbing Code (Title 24, Part 5).
Water heater repair questions from Westminster homeowners
Do you handle water heater repair emergencies at night or on weekends in Westminster?
Yes. The phone line is answered 24/7, including nights, weekends and holidays. Call, describe what the heater is doing, and we will arrange a visit, with same-day appointments offered when available.
Why is my water heater leaking from the top?
Usually it is a loose or corroded inlet or outlet connection, or the relief valve. These are often repairable. Shut off the cold supply and the power or gas, then call.
How often should I flush my water heater here?
Once a year is a sensible habit given Westminster's hard water. Heavier use or a very old unit may call for a check sooner.
Will I know the price before you start?
Yes. You get a clear price before work begins, and nothing is started until you agree to it.
Why does my hot water run out fast?
A broken dip tube, a failed lower element or heavy sediment can all cut your usable hot water.
Is a dripping relief valve dangerous?
It can mean high pressure or scale on the seat. Do not cap it. Have it checked.