If a water heater in Portland, OR is leaking, close the cold water supply valve above the tank, turn off the breaker for an electric unit or set the gas control to off, and contain the water. If you smell gas, leave the house without touching switches and call NW Natural or 911 from outside. If the relief valve is discharging hot water, keep clear, shut the energy off, and do not cap the valve. Once the situation is stable, the question becomes repair or replacement.
This page lists safety steps. It does not describe a dispatch service, and the placeholder phone number on this site is not a working line. For a gas odor, the utility is the right first call.
Step one: protect people
Hot water from a failed tank or a discharging relief valve can scald. Keep children and pets away. If water is near outlets, extension cords, or the electrical panel, do not stand in water to reach the breaker; shut the main breaker from a dry spot or wait for help.
Step two: stop the water
The cold supply valve is on the pipe entering the top of the tank. Turn a handle valve clockwise or a lever valve a quarter turn so it sits across the pipe. If that valve will not move or does not stop the flow, close the main shutoff for the house, typically where the water line enters the basement, crawlspace, or garage, or at the meter box near the street.
Step three: shut off energy
For electric tanks, turn off the double breaker labeled for the water heater. For gas tanks, turn the control knob to off. Heating a tank that is draining can damage elements and burners and adds to the scald risk.
Step four: contain and drain
Move belongings away and use towels or a wet vacuum. If the tank is leaking from its body, attach a garden hose to the drain valve and run it to a floor drain or outside to empty the tank in a controlled way. Open a hot faucet upstairs to let air in so the tank drains.
Gas odor
Natural gas smells like rotten eggs. If you notice it, leave immediately. Do not use switches, phones, or flames inside. From outside, call NW Natural or 911. Do not re-light a pilot until the source of the odor is found and fixed.
Running relief valve
A relief valve that is discharging is doing its job. The tank may be overheating because of a failed thermostat or gas valve, or pressure may be too high because a closed system lacks a working expansion tank. Shut off the energy, close the cold supply, and let the tank cool. Never cap or plug the valve. The expansion tank guide explains the pressure side.
Storms and outages
Portland's winter storms bring outages and freezes. After an outage, check that electric and heat pump tanks resume heating and that tankless units display no error codes. A garage tankless unit that froze should be inspected before restart; see tankless water heater repair.
Where emergencies happen in Portland homes
Basement tanks in older houses around Mt. Tabor Park can flood a finished room before anyone notices, while condo closet tanks near Tom McCall Waterfront Park can leak into a unit below. A drain pan piped to a drain and a water sensor alarm are inexpensive protection in both settings.
After the emergency
A tank that leaked from its body needs water heater replacement. A leak from a fitting, the drain valve, or the relief valve is often a water heater repair.
The emergency order of operations in Portland
- Gas odor ruled out first, with everyone outside and the utility called if present
- Cold supply valve closed, then house main if the supply valve fails
- Breaker off or gas control set to off before the tank drains
- Leak source traced to fitting, relief valve, drain valve, or tank shell
- Relief valve left uncapped and the heater allowed to cool
- Photos taken of the rating plate, leak source, and any damage
- Next step chosen: part repair, temporary shutdown, or replacement
An emergency card for Portland homes
Keep a short emergency card near the heater in Portland homes: where the cold supply valve is, where the house main shutoff is, which breaker feeds an electric tank, and how to turn a gas control to off. Add NW Natural's emergency instructions for gas odor and the reminder to call from outside. A flashlight, towels, a bucket, and a garden hose stored nearby turn a frightening leak into a contained one. Test that the supply valve actually turns before the day you need it.
Emergency water heater repair by city
Each city page below covers local housing, water, and permit notes for this service.
- Emergency water heater repair in Beaverton
- Emergency water heater repair in Gresham
- Emergency water heater repair in Hillsboro
- Emergency water heater repair in Lake Oswego
- Emergency water heater repair in Tigard
- Emergency water heater repair in Milwaukie
- Emergency water heater repair in Tualatin
- Emergency water heater repair in Happy Valley
Portland at a glance
- Coverage: Portland, Oregon and nearby cities, shown on the map on this page at city level, not a business address.
- Landmarks named on this site: Forest Park, Washington Park, and Mt. Tabor Park.
- Permits: City of Portland residential plumbing permits and the Oregon Building Codes Division.
- Incentives: Energy Trust of Oregon lists current water heater offers.