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Plumbing emergency · Ontario, CA

Emergency Plumbing in Ontario, CA

For a burst pipe, major leak or sewage backup in Ontario, shut off the water first, then call. Problems on the street side of the meter go to City of Ontario; anything on your side goes to a licensed plumber, and we connect you with one.

By calling, you agree to be connected with an independent plumbing contractor serving your area. Calls may be recorded for quality and training. The call and referral are free, and you are never obligated to hire.
  • Licensed local plumbers
  • Free call and referral
  • You approve the quote first

Call now for

  • Burst pipes
  • Major leaks
  • Sewage backups
  • Overflowing toilets
  • Leaking water heaters

Emergency plumbing services in Ontario

Emergencies we connect you with help for

  • Burst or split pipes
  • Water leaking through a ceiling
  • Sewage backing up into drains
  • An overflowing toilet that won't stop
  • A water heater leaking from the tank
  • No water in the house

Emergencies most likely in Ontario homes

  • 48% of Ontario's homes were built before 1980 (median year built 1981). Aging galvanized supply pipe and cast iron or clay sewer lines are behind many sudden leaks and backups in homes of that age.
  • Slab-on-grade homes hide supply leaks under the floor.
Typical home built
1981
Homes before 1980
48%
Winter freezes
Rare

The first five minutes

  1. 1Shut off the waterMain shutoff, or the fixture's own valve.
  2. 2Cut power near waterOnly from a dry spot.
  3. 3Gas smell: leave firstCall the gas utility or 911 from outside.
  4. 4Call and describe itSay what failed and when.

What affects the price

The plumbing company sets the price after seeing the job; ask for it in writing before work starts.

  • Time of day, weekends and holidays
  • What failed and how much water got out
  • Access to the pipe or fixture
  • Whether a temporary fix or a full repair is done first
  • Parts the plumber has to source

Plumbing work we connect Ontario homeowners with

Emergency Plumbing in Ontario: questions

Who answers water emergencies in Ontario, CA after the utility office closes?

Ontario routes after-hours water needs to PD Dispatch at (909) 986-6711; during office hours call (909) 395-2678. Leaks inside your home are handled by an emergency plumber.

Who fixes a water main break on my street in Ontario?

City of Ontario handles mains and the service line up to the meter. A plumber handles the line from the meter to the house and everything inside.

Are older Ontario homes more likely to have plumbing emergencies?

Age matters: the median Ontario home was built in 1981 and 48% predate 1980. Homes of that era typically have copper or CPVC supply, plastic drains, and in some homes gray polybutylene supply pipe.

Is slab leak repair a common emergency in Ontario?

Slab-on-grade homes hide supply leaks under the floor.

Emergency Plumbing near Ontario

More plumbing services in Ontario

Local rules and details for Ontario

Who to call in Ontario

Leaks on the street side of the water meter, a broken main or no water on the whole street are for the water utility: in Ontario that is City of Ontario. Check its website or your water bill for its emergency line.

Leaks, backups and failures on your side of the meter, inside the house or in your sewer lateral, are a plumber's job. Call us and we connect you with an independent, licensed plumbing company that handles emergency calls in Ontario; when they can arrive depends on that company and the time of day.

Reporting a water emergency in Ontario

  • Ontario Municipal Utilities Company lists (909) 395-2678 for water leaks, open or leaking fire hydrants and missing sewer or drain covers, Monday through Thursday 7:30 a.m. to 5:30 p.m. and Friday 7:30 a.m. to 4:30 p.m. After hours, residents contact Ontario PD Dispatch at (909) 986-6711 for any water-related needs. Sewer spills should be reported immediately. [3]

Other common plumbing calls in Ontario

Ontario facts behind this page

  • Ontario's primary water source is groundwater from the Chino Basin, pumped from 17 active city wells, supplemented by desalted groundwater from the Chino Basin Desalter Authority, imported water from the Water Facilities Authority and recycled water. [1]
  • The median home in Ontario was built in 1981. [2]
  • About 48% of Ontario's housing units were built before 1980, the era of galvanized steel supply pipe, cast iron drains and clay sewer laterals. [2]
  • Ontario Municipal Utilities Company lists (909) 395-2678 for water leaks, open or leaking fire hydrants and missing sewer or drain covers, Monday through Thursday 7:30 a.m. to 5:30 p.m. and Friday 7:30 a.m. to 4:30 p.m. After hours, residents contact Ontario PD Dispatch at (909) 986-6711 for any water-related needs. Sewer spills should be reported immediately. [3]
Sources (3)
  1. City of Ontario, Water Supply Assessment (Subarea 29) · checked 2026-10-05
  2. U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
  3. City of Ontario, Contact Municipal Utilities Company · checked 2026-10-20
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