Water pushing up through the tile in a South Corona tract home, roots backing up a clay lateral near downtown, a garage water heater emptying onto the floor. What to do first, and a licensed local plumber on the way at any hour.
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What to Do in the First Five Minutes
Emergency calls are triaged by phone, so the plumber arrives with the right parts for a burst line, a backup or a failed tank.
Shut off the water. In South Corona, Eagle Glen, Sierra Del Oro and the other tract neighborhoods, the main shutoff is usually on an outside wall near the front hose bib, beside the pressure regulator. Turn it clockwise until it stops. In older homes near downtown it may be lower on the wall or near where the line comes up from the street. The valve in the meter box at the curb also stops the water, though it belongs to the water utility.
If the water heater is leaking, close the cold water valve on top of the tank, set a gas unit's control to off or pilot, or switch off the breaker for an electric one.
If water is coming up through the floor, the main shutoff stops it even though the leak is under the slab. Pull rugs and furniture off the wet area so flooring and baseboards dry sooner.
If sewage is backing up, stop running water anywhere in the house until the line is cleared, since every drain empties into the same blocked lateral.
Electricity and gas come first. Stay away from water near outlets or the panel unless the breaker is reachable from a dry spot. If there is a gas smell, get everyone out, then call Southern California Gas Company or 911 from outside.
Take photos before cleanup starts. A slab leak claim usually depends on showing where the water surfaced.
Then call (951) 579-7318 and say whether the water is coming from a fixture, the water heater, a drain or the floor itself. That decides what equipment comes on the truck.
$50 off any plumbing repair applies to emergency repairs too, and member discounts for AAA, Costco and Sam's Club members and Lowe's shoppers are honored. See all current specials.
Corona's emergency calls follow its two housing profiles. South Corona, Eagle Glen and the developments toward Dos Lagos went up in the 1990s and 2000s on slabs with copper underneath. That copper is now old enough to pinhole in Corona's hard water, and a slab leak that has been running quietly for weeks sometimes announces itself all at once, with water lifting tile or soaking carpet across a room.
The same tracts were built with builder-grade water heaters that are reaching the end of their life together, and a tank that lets go in the garage at night is one of the most common calls out of the city. Failed pressure regulators, also common in Corona, push house pressure high enough to burst washing machine hoses and toilet supply lines.
Near downtown and along Sixth Street, the older homes have clay sewer laterals and aging galvanized lines. Roots at the clay joints cause sudden main line backups, often after a heavy rain or a busy holiday weekend. See drain cleaning in Corona and leak detection in Corona.
Triage
Emergency Visit or Next-Day Appointment?
Do not wait
Water lifting tile or soaking carpet in a South Corona, Eagle Glen or Dos Lagos slab home
A burst washing machine hose or toilet supply line, often a sign of failed pressure regulation
Sewage in a tub or shower in an older downtown home, where roots in the clay lateral are the usual cause
A garage water heater leaking from the body of the tank
Water through a ceiling below an upstairs bathroom
Fine for a scheduled visit
A relief valve on the water heater dripping steadily into its drain line
A warm spot on the floor with no water showing, with the main valve located in case it gets worse
A kitchen sink that is slow but still draining
A running toilet, once the valve behind it is closed
A scheduled appointment costs less than an after-hours visit, and if it can safely wait, the person on the phone will say so. See 24-hour emergency plumbing.
Pricing
What It Costs in Corona
What an emergency plumbing call costs in Corona
Job
Typical price
Emergency service call
$150 – $300
Burst pipe repair
$300 – $1,000+
Emergency leak repair
$250 – $800
Sewer backup repair
$500 – $2,500+
Water heater repair
$150 – $600
Typical 2026 ranges. The price is explained and approved before any work starts, at any hour. See emergency plumbing prices on the pricing page.
Coverage
Corona Neighborhoods Covered
Downtown CoronaThe CircleSouth CoronaSierra Del OroEl CerritoEagle GlenDos LagosGreen RiverCoronitaHome GardensTemescal Valley
Can I get a plumber in Corona in the middle of the night?
Yes. A person answers (951) 579-7318 at any hour, including weekends and holidays, and same-day or same-night service is available for most emergencies in Corona and the surrounding unincorporated areas. You get an arrival window on the call.
How much does an emergency plumber cost in Corona?
An emergency service call typically runs $150 to $300, with the repair priced on top. A burst pipe repair commonly runs $300 to $1,000 or more, and a sewer backup repair $500 to $2,500 or more. See emergency plumbing prices.
Water is coming up through my floor. What should I do?
Shut off the main water valve right away, then move furniture and rugs out of the wet area and take photos. In a 1990s or 2000s Corona home this is usually a slab leak on a hot or cold supply line. Once the water is off, it can be located and the repair options priced.
Who do I call about a leak at the meter in Corona?
Inside city limits, the City of Corona owns the meter and the line on the street side of it. The line from the meter to the house, and everything inside, is the homeowner's.
Are Temescal Valley and Home Gardens covered for emergencies?
Yes. Emergency calls are taken for all of Corona, including the unincorporated areas of Temescal Valley, Coronita and Home Gardens.
