You need a plumber now if water is leaking and you can't stop it, sewage is backing up, you have no water, or your water bill jumped with no change in use. You can usually wait a day or two for a single slow drain, a dripping faucet, or a running toilet. The line between "call now" and "this weekend" comes down to one question: is water going somewhere it shouldn't, or is the damage just annoying?
Below is the honest version — the warning signs that matter, the ones you can fix yourself, and what a service call actually costs so you're not surprised at the door.
Water under the sink, a burst supply line, or a wet spot spreading on the ceiling. Shut off the fixture valve or the main, then call. Standing water becomes a mold and drywall bill within 48 hours, so this is the one not to sit on.
A rotten-egg smell from drains, gurgling toilets, or waste coming up a shower drain points to a blocked main line. This can flood a home fast and is a health hazard. Stop using water and get a plumber out.
A 20 percent or larger spike with the same usage is a hidden leak — a slab leak or a silent toilet that runs all night. It wastes hundreds of gallons a day and quietly rots subfloor. Worth a same-week visit.
Water pooling under the tank means the heater is failing and can flood. If it's a gas unit and you smell gas, leave and call from outside. No hot water at all is rarely an emergency but worth a prompt call before the tank goes entirely.
We run our own home-service companies, so we'd rather give you the honest answer than send you reaching for the phone. You can skip the call when:
When more than one drain backs up, water shows up where it shouldn't, or the fix involves the main line or gas, that's where a licensed plumber earns the fee.
A homeowner searching "signs you need a plumber" is one bad night away from calling someone. The plumber whose site answers that question first is the one they call. That's exactly the kind of page we build — answer-first, fast, and wired to capture the call — for plumbing businesses that want to own these searches instead of renting ads forever. See SEO for plumbers and our plumber website design for how it works.
We don't post stock testimonials. On a 15-minute call we screen-share the real dashboards behind our own businesses — live leads, rankings, and the exact page that produced each one. See the proof →
An active leak you can't shut off, sewage backup, no water, or a gas smell near a water heater. Those can damage the home or your health within hours. A drip or a single slow drain is not an emergency.
Usually a hidden leak — most often a toilet that runs all night. Read your meter, leave the water off for two hours, and read it again. Movement means a leak worth a plumber's diagnosis.
Most plumbers charge $75 to $200 to come out and diagnose, then quote the repair. Get the repair price in writing before you approve the work.
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