Emergency Water Heater Service

Last updated September 24, 2026

An emergency is a water heater problem that can't wait for a normal appointment, active leaking, water spreading across a floor, or a total loss of hot water in a household that needs it now. This page covers what to do in the moment and how emergency response actually works.

What counts as an emergency

A tank actively leaking or spraying water, water pooling around the unit, or a complete failure affecting the whole household are the clearest cases. A slow drip or a unit that just seems to be running a little rough is usually not, that can typically wait for a standard appointment.

What to do right now

If you smell gas, leave the house immediately and call your gas utility and emergency services from outside, don't investigate further yourself. Otherwise, if you can safely reach the cold water shutoff valve on the supply line to the tank, closing it stops the leak from getting worse. Don't attempt to move the unit or touch its electrical or gas connections.

A basement failure is a different event than a garage one

A leaking tank in a finished basement can affect flooring, drywall and stored belongings in a way a garage failure usually does not. If your unit is in a finished basement, mention that when you call, it affects how urgently things move.

How emergency dispatch works

Call, describe what's happening, and you'll be told realistic timing for your city, often same-day, frequently faster for active leaks. Availability spans nights, weekends and holidays, and varies by area.

What information speeds up an emergency dispatch

Your address, whether water is actively spreading, whether you smell gas, and whether the unit is gas or electric all help the dispatcher route the right response quickly.

After the immediate emergency is handled

Once the leak is stopped or the unit is safely shut down, the conversation shifts to repair versus replacement, the same as any non-emergency visit, just starting from a more urgent point.

After the Immediate Emergency

Once the active leak or failure is addressed, the conversation shifts to whether the unit needs a full repair or a replacement, that decision happens calmly, after the emergency itself is under control, not in the moment.

What Counts as an Emergency

A true water heater emergency is anything that threatens safety or property: water pouring from the tank or its fittings, a smell of gas near the heater, a relief valve discharging steady hot water, scorch marks or burning smells at an electric unit, or a carbon monoxide alarm. No hot water in a household with infants, elderly residents or medical needs can also be urgent. A slow drip, a pilot that went out or lukewarm water are problems worth addressing promptly but usually aren't emergencies.

What to Do in the First Five Minutes

If a tank is leaking, close the cold-water shutoff valve on the pipe entering the top of the heater. For a gas unit, turn the control knob to off; for electric, switch off its breaker. Open a hot tap somewhere in the house to relieve pressure. If you smell gas, leave the house, don't operate switches, and call the gas utility from outside. If a CO alarm sounds, get everyone outside and call 911.

Limiting Water Damage

Once the supply is off, the tank can still hold 40 or 50 gallons. Connect a garden hose to the drain valve at the bottom and run it to a floor drain or outside to empty the tank safely. Move stored items away from the heater, and use towels to direct water toward the drain. Photograph the area for insurance purposes.

What an Emergency Visit Looks Like

An emergency technician first makes the situation safe: stopping the leak, confirming gas and power are off and checking for hazards. Then they diagnose. A leaking tank body can't be repaired, so the options are a same-day replacement if a suitable unit is available, or a temporary fix to restore hot water while a replacement is ordered. A leaking fitting, valve or connector may be repairable on the spot.

After-Hours and Winter Emergencies in Colorado

Winter is peak season for emergencies in Colorado. Cold inlet water pushes aging tanks to their limit, frozen lines can split, and mountain homes may be snowbound. For remote properties, having the water heater's data plate photographed ahead of time and knowing where shutoffs are can shorten the response considerably.

Preventing the Next Emergency

Most emergencies give early warnings: rust at fittings, dampness at the base, rumbling noises, or rusty hot water. Planning a replacement when a tank reaches about twelve years, or when those signs appear, avoids the midnight call. A drain pan with a leak sensor and automatic shutoff valve adds a layer of protection for finished spaces.

A Typical Colorado Emergency

On a January night in Longmont, a homeowner hears hissing in the basement and finds hot water spraying from the relief valve's discharge pipe. They shut the gas control and cold supply as instructed by phone. The technician finds the gas control's thermostat has failed, letting the tank overheat. The relief valve did its job.

Questions Homeowners Ask

Should I call the gas company or a plumber if I smell gas? The gas company first, from outside the house.

Can I use hot water if the tank is leaking slightly? It's safer to shut it off and arrange repair or replacement.

How can I find my shutoff valve? It's usually on the cold pipe entering the top of the heater.

Temporary Solutions

If a replacement water heater isn't immediately available, a technician may bypass the failed tank so the house has cold water, cap the gas line safely and schedule the replacement. In some cases, a temporary electric unit can be installed.

Knowing Your Shutoffs Before an Emergency

The best time to find your water heater's shutoffs is before you need them. Locate the cold-water valve on the pipe entering the top of the heater, the gas shutoff on the line feeding the gas control, and the breaker for an electric unit. Label them. Make sure the valves turn freely; old gate valves can seize and may need replacement with quarter-turn ball valves.

Emergencies in Mountain Homes

In mountain homes, a water heater emergency can be complicated by snow, remote access and freezing risk. If the heater must be shut off in winter, keep the home heated and consider draining lines if the outage will be long.

What Counts as an Emergency

Some water heater problems genuinely can't wait: water actively spreading from the tank, a gas smell near the unit, scorching or burning odors, a relief valve discharging hot water continuously, or signs of scalding temperatures at the tap. Others feel urgent but are safe to schedule, such as a pilot that went out, lukewarm water, or a slow drip from a fitting that a towel and a bucket can manage overnight.

If you're unsure which category you're in, close the cold-water supply valve on top of the tank, turn the gas control to off or switch off the breaker, and call. If you smell gas, leave the house first and call your gas utility or 911 from outside.

In winter, a failed water heater in a vacant cabin or rental can lead to frozen pipes, so mention if the property is unoccupied.