Plumbers in the Los Angeles Area, CA

The Los Angeles area is the largest plumbing market in California, and it covers a patchwork of utilities: LADWP in the city, Golden State Water and Cal Water in the South Bay and Southeast, and dozens of small districts and city departments in the San Gabriel Valley. Imported water, local groundwater basins with cleanup programs and bungalows from the 1920s through the 1950s shape the calls. Use this page to find your city and the right local page.

Plumbers in the Los Angeles Area

Pick your city for local problems, first steps and a map. Each page covers the plumbing issues common to that city.

• Plumber in Los Angeles, CA — A huge imported-water city, and LADWP service lines with no lead found but old premise plumbing.
• Plumber in Torrance, CA — A South Bay city on imported Metropolitan water, a desalter, 1950s, and 1960s homes.
• Plumber in Whittier, CA — A Gateway Cities foothill community on a mix of groundwater, imported supply, and hillside homes.
• Plumber in Long Beach, CA — A port city with its own water department, and about 60 percent groundwater.
• Plumber in Pasadena, CA — A San Gabriel Valley city with its own water, power department, and about a third local groundwater.
• Plumber in Alhambra, CA — A San Gabriel Valley city pumping city wells in the Main San Gabriel Basin.
• Plumber in Burbank, CA — A San Fernando Valley city with its own water, power utility, and imported Metropolitan water.
• Plumber in West Hollywood, CA — A dense city served by two utilities, LADWP, Beverly Hills, imported water, and older apartments.
• Plumber in Santa Monica, CA — A coastal city with its own water department, local groundwater, and imported Metropolitan water.
• Plumber in Diamond Bar, CA — Imported water, hillside lots, homes from the 1970s, and 1980s.
• Plumber in Covina, CA — Several water providers, San Gabriel Basin water, and postwar homes.
• Plumber in Pomona, CA — City wells in three basins, mountain water, and imported supply in a foothill city with older housing.
• Plumber in Arcadia, CA — City wells in two basins, foothill lots, large older homes, and well treatment for emerging contaminants.
• Plumber in Glendale, CA — Local basin wells, imported Metropolitan water and recycled water in a hillside city.
• Plumber in Inglewood, CA — West Basin imported water, four city wells, and 1920s to 1950s homes near the stadium district.
• Plumber in Azusa, CA — A city-owned utility blending canyon surface water, groundwater, foothill streets, and older homes.
• Plumber in Redondo Beach, CA — Cal Water service with local wells, Metropolitan imports, salt air, and beachside homes.
• Plumber in Santa Clarita, CA — Half local groundwater, half imported State Water Project supply, and perchlorate treatment.
• Plumber in San Dimas, CA — Golden State Water service, Main San Gabriel Basin wells, and foothill homes.
• Plumber in Monrovia, CA — City wells in the Main San Gabriel Basin with air strippers, and mountain-edge homes.
• Plumber in West Covina, CA — Several water providers, mostly groundwater from local wells, and hillside tract homes.
• Plumber in Gardena, CA — Golden State Water service blending West, and Central Basin groundwater with Metropolitan imports.
• Plumber in El Monte, CA — Several water providers, San Gabriel Basin wells, and older homes near the river.
• Plumber in La Mirada, CA — Suburban Water Systems wells in two basins, purchased supply, and 1960s suburban homes.
• Plumber in Claremont, CA — Golden State Water service, about 60 percent local groundwater, and a college-town housing mix.
• Plumber in Norwalk, CA — Golden State Water service blending Central Basin groundwater with imported Metropolitan water.
• Plumber in San Gabriel, CA — Golden State Water service from basin wells with treatment, and older San Gabriel Valley homes.
• Plumber in Culver City, CA — Two utilities, Golden State Water, LADWP, imported supply, and 1920s to 1950s homes near the studios.
• Plumber in Glendora, CA — City wells in the Main San Gabriel Basin, imported supply through Three Valleys, and foothill homes.
• Plumber in Lakewood, CA — A city water department pumping 11 deep wells in the Central Basin, and with 1950s tract homes.
• Plumber in La Puente, CA — A Superfund-cleanup basin, a small district with treated wells, and older San Gabriel Valley homes.
• Plumber in Baldwin Park, CA — Superfund-area wells with large treatment plants, a small district, and postwar tract homes.
• Plumber in Carson, CA — West Basin imported water, local groundwater rights and a recycled-water hub in a South Bay industrial city.
• Plumber in Bellflower, CA — Four water providers, Central Basin wells, imported supply, and compact postwar neighborhoods.
• Plumber in Cerritos, CA — A city-run system buying Central Basin imports, pumping local wells, and with planned-city homes.
• Plumber in Compton, CA — City wells in the Central Basin, Golden State Water service, and imported supply through Central Basin.
• Plumber in Rancho Palos Verdes, CA — Cal Water service almost entirely imported through Metropolitan, and hillside homes.
• Plumber in Manhattan Beach, CA — Imported water through West Basin, and three city wells with manganese issues.
• Plumber in South Gate, CA — A city water department pumping its own wells, a second private water company, and older tract homes.
• Plumber in Lynwood, CA — A private utility pumping Central Basin wells almost entirely, and with a city-run history.
• Plumber in Downey, CA — A city-owned groundwater system with PFAS treatment planned, emergency generators, and 1950s homes.
• Plumber in Hawthorne, CA — Cal Water service from one well, and two Metropolitan connections.
• Plumber in Montebello, CA — City wells, local water companies in the Central Basin, and a contaminated forebay.

Our Los Angeles Area Coverage Area

Many Providers, Several Water Mixes

Water in this area comes from imported Colorado River and State Water Project supply through Metropolitan, local wells in the San Gabriel, Central, West Coast and San Fernando basins and some recycled water. Which provider serves your address changes the mix, so check your bill and your annual water quality report. The line from the meter and everything inside are yours.

Groundwater Cleanup and Wellhead Treatment

Much of the San Gabriel Valley sits on Superfund-area groundwater, and several cities run treatment plants for solvents, perchlorate and PFAS. Treated water meets drinking standards, and annual reports list test results.

Bungalows, Cast Iron and Clay Laterals

Homes from the 1920s through the 1960s often have galvanized supply, cast iron drains and clay sewer laterals, and backyard units add load to old lines. A written inspection and a camera run before buying or renovating show what remains.

Earthquake Strapping and Gas Shutoffs

California requires water heaters to be braced. Check straps, flexible connectors and the gas shutoff, and know how to shut off water and gas after a quake.

Plumbing Services Across the Los Angeles Area

Every local page connects you with vetted, insured plumbers for these core services:

• Emergency Plumbing
• Drain Cleaning
• Sewer Line Repair
• Water Heater Repair

For background reading, see how to choose the best plumber near you and signs your home needs repiping.

Frequently Asked Questions — Los Angeles Area Plumbing

Who offers emergency plumbing in the Los Angeles area?

LocalPlumber.us connects you with vetted, insured local plumbers around the clock. Shut off the main valve if water is flowing, call, and give your ZIP code when prompted.

Why does water quality differ so much between Los Angeles area cities?

Providers use different mixes of imported water and local groundwater, and treatment differs by basin. Your annual water quality report lists the source and test results.

Do older Los Angeles area homes have galvanized pipe?

Many from the 1920s through the 1950s do. A written inspection with a camera run shows what remains.

Can I add a backyard unit to an older Los Angeles area lot?

A plumber should check the main line size and sewer lateral capacity before a new unit connects to old lines.

Do water heaters need earthquake strapping?

California requires bracing. Check straps, flexible connectors and the gas shutoff.

What should renters do about a leak?

Report it to the landlord in writing, keep a copy and shut off the fixture stop if water is flowing.

Which Los Angeles area city page should I use?

Use the page for the city you live in. If yours is not listed, choose the nearest city; the same plumbers often serve neighboring towns.