Emergency Commercial Pipe Burst in Phoenix

Stop the water, protect people, then call. Close the building's main shutoff valve, which Phoenix's own guidance names as the first step. Keep people and stock away from wet floors, and do not walk through water near electrical equipment; have a qualified person shut off power to the affected area. Leave faucets open until repairs are done, as the city advises. Then call a plumber, and call your insurer. Move product and records out of the wet zone if it is safe to do so.

A second round of phone calls follows: tenants or the property manager, the landlord if you lease, and the utility only if the break is on its side of the meter. Our after-hours emergency checklist and how to prepare for a plumbing emergency lay out a call tree you can keep at the front desk.

The one at the building, not the meter. The 2024 IPC puts a full-open valve on the water supply at the entrance into the structure and on the discharge side of every meter, and many buildings add valves at the base of risers and at each tenant. In a multi-tenant building three stories or less, the code expects a main shutoff for each tenant. Phoenix tells customers not to operate the meter itself, because it takes a special tool and the customer may be charged for damage. If nobody can find or turn the building valve, the city's customer service line, 602-262-6251, can send a technician to shut the water off at the meter.

Test your valves before an emergency. An old valve that has not been turned in years may not close all the way, and forcing it can break it. See how to test your main shutoff valve and planning a commercial water shutoff. If the valve will not close, that is the second emergency, and it is solved with a shutoff valve replacement.

Usually from heat, pressure or age, not frost. Phoenix amended the IPC to ban exposed plastic potable pipe outdoors, citing summer heat softening it and UV making it brittle until it fractures, which causes water breaks and heavy property damage. High pressure is the second cause: Phoenix requires a regulator so customer-side pressure stays at or below 80 psi, and a failed regulator pushes full street pressure into fixtures, flushometers and fittings. The third is corrosion in older copper and galvanized lines. Freezing happens in the Valley only occasionally, though the city does tell customers to protect exposed pipes during a freeze warning. Our page on whether cold alone bursts pipes covers that, and the pressure regulator and hose bib repair page covers the pressure side.

Record the damage before cleanup and keep the failed pipe. Triple-I's business claim guidance says to contact your insurer as soon as possible, document the damage with photos or video, take reasonable steps to protect the property from further damage, and keep copies of what you submit. A plumber's written description of the cause and repair, the date and time of shutoff, and invoices for temporary repairs and drying all support the file. Keep the cut-out section of pipe if you can; it shows the failure mode. Whether the loss is covered depends on the policy, and sudden water damage is treated differently from sewer backup; see water leak versus sewer backup coverage and the insurance documentation checklist. If the business has to close, ask about business income coverage as well.

In Phoenix, stopping a leak is permit-exempt, so an emergency repair can begin at once. Replacing concealed pipe with new material is new work that needs a permit, a pressure test and an inspection before the wall or ceiling is closed. Phoenix's code also puts a clock on notifying the building official of an unsafe condition: four hours when it is imminently unsafe, 72 hours for damage to required building service equipment. Other cities have their own rules, so ask the building department that covers your address.

If the break is on the city side of the meter, call the city; it is not yours to dig. If water is rising from a floor drain or toilet, that is a sewer backup, not a burst supply pipe, and the cleanup and coverage differ. A slow, hidden loss is a commercial slab leak or a leak you need to locate first. If a main on the site breaks, see apartment building main breaks.

HQ takes emergency calls 24/7, with after-hours calls reaching a dispatcher and a supervisor callback. We stop the water, make the failed section safe, give you the price before repair work starts, and write up the cause. We are licensed and insured. For permanent repair of the line, see commercial water line repair, and for general emergencies see our emergency plumber page.