A plumbing problem is an emergency when water or sewage is moving where it shouldn't and you can't stop it, or when it creates a safety risk. In Lexington, SC that usually means a burst pipe, a water heater leaking from the tank, sewage coming up through a drain, or water reaching outlets and wiring. A slow drain, a running toilet or a small drip under a sink can almost always wait for a scheduled visit. If you're standing there at 11 p.m. trying to decide, this guide will help you sort it out.
Getting the call right matters both ways. Waiting too long on a real emergency lets water reach subfloors, drywall and cabinets. Treating every hiccup as urgent can mean paying for an after-hours visit you didn't need.
Water damage that can't wait
The question isn't whether water is involved. It's how fast it's moving and where it's going.
Burst or split pipes
Once a pipe splits, water keeps flowing until someone shuts off the supply. This is one of the clearest emergencies there is, and every minute adds to the cleanup. In the Midlands, the occasional hard freeze is a common trigger, but supply lines under sinks and behind washing machines can fail any time of year.
- Shut off the main water valve, usually where the line enters the house or near the meter.
- Cut power at the breaker to any area where water is near outlets or appliances.
- Move furniture and rugs out of the way.
- Call a plumber and describe where the water is coming from.
Our post on burst pipe repair in Lexington covers what happens next.
A water heater leaking from the tank
Most residential tanks hold 40 to 50 gallons. A tank that splits at the seam or leaks from the bottom has usually corroded through and can't be patched. That is an emergency. A dripping relief valve or a fitting that sweats is a different, smaller problem that can usually wait for a same-day appointment.
- Shut off the cold supply valve on top of the tank.
- Turn off the breaker for an electric unit, or turn the gas control to off on a gas unit.
- Put a pan or towels down if the tank is still mostly intact.
See water heater repair for what we check on arrival.
A slab leak that has reached the surface
A slab leak starts slowly: a warm spot on the floor, a higher water bill, the sound of running water with everything off. At that stage, book leak detection soon. Once water is pooling on the floor or lifting tile, it has become an emergency.
Sewage backups are a health risk
A clogged drain is annoying. Sewage coming back up is a health hazard, because wastewater carries bacteria that nobody should be cleaning up without protection.
Sewage rising in tubs, showers or floor drains
If water or waste rises in the tub when someone flushes a toilet, the blockage is almost never in that one fixture. It is usually in the main line that serves the whole house. Call as soon as sewage reaches a surface people touch. Our emergency sewer service post explains why.
- Standing water with a foul smell in more than one fixture
- Gurgling from drains you aren't using
- Water rising instead of draining when a toilet is flushed
Several drains slowing at once
One slow sink is a nuisance. Every drain slowing around the same week points to the main line, often from grease, wipes or tree roots. A sewer camera inspection confirms the cause before anyone digs.
What to do while you wait
- Keep children and pets away from the affected area.
- Stop running water and flushing toilets until the line is cleared.
- Don't clean up sewage without gloves and eye protection.
Safety risks: electricity, gas and cold
Water near outlets, panels or appliances
A leak that reaches an outlet, panel or plugged-in appliance turns a water problem into a shock or fire risk. Shut the power off at the breaker. Don't unplug anything while standing in water.
If you smell gas
Leave the house first. Don't flip switches or use a phone inside. Once everyone is outside, call your gas utility's emergency line. Dr Rooter does not do gas line work, so the utility is the right first call.
No hot water during a freeze
A failed water heater in July can usually wait a day. During a cold snap, with young children, older relatives or someone unwell at home, it moves up the list. The urgency depends on who lives in the house and what the forecast looks like.
Problems that can wait for a scheduled visit
These are real problems worth fixing soon, but they rarely cause fast damage:
- A toilet that runs on and off but still flushes. See running toilet causes and fixes.
- One slow drain that still empties within a few minutes
- A dripping faucet or outdoor spigot with no water pooling indoors
- Water pressure that has dropped slowly over weeks, not all at once
- A garbage disposal that hums but won't spin
Small leaks add up, though. Household leaks waste nearly 10,000 gallons of water a year in the average home, according to the EPA WaterSense program. Booking a same-day or next-day visit for these keeps them from becoming the kind of problem in the first half of this guide. Regular checkups through our Plumb Perfect Club catch worn valves and slow leaks early.
Still not sure? Call and ask
If you can't tell which side of the line you're on, call us. We'll ask a few questions and give you a straight answer, even if that answer is "this can wait until morning." We're open 24 hours, 7 days, and we serve Lexington and the wider Midlands, including West Columbia, Irmo and Lexington itself. See our 24-hour emergency plumbing page for how we work.
Plumbing emergency FAQs
Is a clogged toilet an emergency?
Only if it's overflowing and won't stop with the supply valve closed, or if it's the only toilet in the house. Otherwise a plunger or a scheduled visit is fine.
Is no hot water an emergency?
Usually not, unless the tank is leaking or it's freezing outside and someone at home is vulnerable to cold. Turn off the unit and book a same-day visit.
Should I turn off the main water valve for any leak?
For any leak you can't stop at the fixture's own shutoff, yes. It's the fastest way to limit damage.
Can a slow leak wait until Monday?
A slow drip into a bucket can usually wait. A leak that's spreading, staining a ceiling or reaching wiring can't.
Dealing with a plumbing emergency in the Lexington area? Call Dr Rooter Lexington at (803) 761-9935.
