Same daySame-day plumbing service when a plumber is available
Same-day service is offered when a plumber serving your area has room in the schedule, and it is never promised in advance. What you can control is how complete your first description is.
A caller who says "the water heater is leaking from the bottom, the cold valve is closed, and the garage floor is wet" gets sorted faster than one who says "something is leaking."
If you need a plumber open now, say so at the start of the call. Dispatch will tell you what is possible for your address before anything is booked.
A fast plumber is mostly a well-described call. An urgent plumbing response goes quickest when the first minute carries the symptom, the location and whether the shutoff is closed.
Can I get someone out today?
Sometimes, depending on the hour and where you are. Calls that involve active water, sewage or no water at all are placed first. Dispatch gives you a straight answer about availability on the call, and for the outer communities it asks you to confirm dispatch for your address.
What if there is no water at all?
Check the main valve and ask whether the street is affected. If only your house is dry, a failed pressure regulator, a closed or stuck valve or a broken service line are the usual suspects, and a plumber can test which one.