Is this a plumbing emergency, or can it wait until morning?

It is late, something in the house is wrong, and you are standing there with a phone deciding whether to call now or set an alarm. Here is the honest version of how we would sort it. The question is not how bad it looks. It is whether the problem is still doing damage, and whether anyone in the house is at risk. If the answer to both is no, most plumbing problems can wait for daylight, and you will sleep better knowing that.

A plumber answers our phone 24/7 either way. This guide is about what actually needs that call at two in the morning, and what to do with the rest until morning.

Call now: these do not wait

• An active leak you cannot stop. You closed the valve under the fixture, you closed the main, and water is still coming. Or you cannot find the main, or it will not turn. In a slab home there is no basement to catch it, so every minute spreads water across tile and under the baseboards into the next room.
• Sewage in the house. Anything coming up through a tub, shower, or floor drain is a main line problem, and it gets worse with every flush and every load of laundry. Stop using water and call.
• No water at all, and someone needs it. A house without water is an inconvenience for most people for one night. It is not if someone at home depends on water for a medical device or medication, or there is a newborn in the house.
• A smell of gas. This is not a plumber first. Leave the house, do not flip switches on the way out, and call the gas utility or 911 from outside. They shut it off and make it safe. The plumber comes after, for the repair.
• Water near electricity. Water pooling near outlets, an appliance, or the electrical panel. If the panel is dry and you can reach it without stepping in water, switch off the wet rooms. If not, stay out of the water and call the electric utility to cut power, then call us.
• A water heater leaking from the tank. A tank that has split does not stop, because the supply line keeps refilling it. Close the cold water valve on top of the heater, switch off its breaker or turn the gas control to off, and call. Fifty gallons in an interior closet is a bad month.

Gas comes before everything else

The order matters. If you smell gas, the utility comes first, from outside the house, before you call anyone about plumbing. Do not try to find the leak, do not light anything, and do not use the garage door opener on the way out. Once the gas is off, a licensed plumber repairs the line or the appliance connection. Propane works the same way: the supplier first.

It can wait until morning, with a workaround

Each of these is a real problem that we will fix. None of them is doing damage once you close the right valve, and each has a way to get through the night.

• One clogged fixture. A single toilet, sink, or shower that will not drain while everything else drains fine is a branch line or a trap. Use the other bathroom, skip the drain chemicals, and leave it for morning. If it is your only toilet and a plunger does not clear it, a bucket of water poured quickly into the bowl often flushes what a plunger will not.
• A running toilet. Turn the small valve on the wall behind the toilet clockwise until it stops. The running stops, and so does the water bill. To flush, open the valve, let the tank fill, flush, close it again.
• A dripping faucet. Close the two stop valves under the sink. The drip stops. Use another sink until the cartridge or the faucet is replaced.
• A slow drain. Slow is not stopped. Pull the stopper and clean out the hair if you can reach it, and skip the chemical drain cleaner. Morning.
• No hot water, and nothing is leaking. Check the breaker first; a tripped one is the most common cause. If the floor under the tank is dry and the breaker is fine, this is a morning call. A kettle and a quick shower get a household through one night.

In the meantime, for the call-now list

On one of the real emergencies, what you do while you wait decides how much of the house stays dry.

1. Confirm the water is off. The fixture valve if the problem is at one fixture, the main if it is not. Open the lowest faucet and an outdoor hose bib to drain the pressure, so the leak stops spraying.
2. Turn off the water heater if the house has drained. An electric tank that heats with air in the top of it burns out its elements.
3. Get things off the floor. Rugs, boxes, furniture legs onto foil or blocks. Towels along the baseboards.
4. Photograph everything before you move or dry anything; you cannot take those pictures later.
5. Move air. Fans on, doors open, dehumidifier if you own one. In our humidity, drywall that stays wet for two days is on its way to mold.
6. Keep people and pets out of sewage. Close the door to that bathroom. Do not run fans in there; they spread what you do not want spread.

A two-question test

When you are not sure, ask yourself two things. Is water, sewage, or gas still going somewhere it should not, after you have closed what you can close? And is anyone in the house in danger because of it? Two no answers means morning. One yes means call now.

The cases in between exist. A seasonal resident whose neighbor reports water under the door of an empty house has a yes on the first question and no way to close a valve. A family with one bathroom and a toilet that will not clear has a no on both and still cannot wait comfortably. Use your judgment; the phone is answered either way.

Whichever side of the line you land on, tell us what you found, what you closed, and what is still happening. If it is an emergency, that lets the plumber get to work the moment they walk in. If it can wait, it lets us bring the right parts in the morning.