Shut off your main water valve immediately, then turn off your water heater. Once the water is off, call a T.C.R plumber, this isn't something to wait on. Everything else, including cleanup, comes after those two steps.
Where's the main shutoff valve?
Most homes in the Flagstaff area have the main shutoff near the water meter, in a basement, crawlspace, or utility closet, or right where the line enters the house. Turn it clockwise until it stops. If you can't find it or it won't budge, shut off water to just the fixture or appliance nearest the break instead.
If you have a well system, shut off the pump breaker at your electrical panel as well as the valve. This stops the pump from trying to push water into a broken line.
Why do pipes burst?
In Northern Arizona, the most common cause is freezing. Water expands as it turns to ice, and that pressure splits the pipe, usually at a joint or a section running through an uninsulated exterior wall or attic. A single hard freeze night, especially below 20°F, can be enough if a line isn't insulated.
Other common causes:
Old, corroded galvanized or copper pipe reaching the end of its service life
High water pressure that stresses joints and fittings over time
A nail or screw driven through a pipe during a remodel
Tree roots cracking or crushing buried lines
Is this an emergency?
Yes. A burst pipe can put out hundreds of gallons of water in a short window, and it doesn't stop until the water's shut off. Beyond the immediate flooding, standing water starts causing drywall and flooring damage fast, and mold can begin developing within 24 to 48 hours in the right conditions.
If water is anywhere near outlets, switches, or your electrical panel, stay out of that area and don't touch anything electrical until a professional has checked it.
What happens when the plumber gets there?
A technician will confirm the water is fully isolated, then locate the break. Depending on the pipe material and location, the fix might mean cutting out and replacing a short section, repairing a joint, or in some cases rerouting the line if it's in a wall or ceiling that's hard to access.
After the repair, the tech will turn the water back on slowly and check the line under pressure before leaving, to make sure nothing else is compromised nearby.
What should I do while I wait for help?
Shut off the water and power to the area if needed
Move furniture, rugs, and valuables away from the water
Take photos of the damage for your insurance claim
Open a window or run a fan to start drying the space
A burst pipe won't fix itself, and the longer it runs, the more it costs you in water damage. If you're dealing with one right now in Flagstaff, Williams, Sedona, Munds Park, Bellemont, Winslow, or anywhere nearby, call TCR Rooter & Plumbing Repair at 928-773-4905. We've been handling these calls in Northern Arizona since 1993.
