Outcome one — stopped and fully repaired tonight. When this happens: the failure is accessible or reachable with a small opening, the pipe material is common, and the parts are carried. Typical cases: a failed joint or fitting on an exposed run, a split flexible supply hose, a failed angle stop, a leaking valve, a burst section in a basement, crawlspace, or garage, and most failures under a sink or behind an appliance. What you get: working plumbing, a completed repair, and one invoice. How to make it more likely: know where the water shuts off, and tell us what you can see. An accessible failure described accurately means the right parts arrive with us.