Looking for a plumber in California? Water, home age and permit rules change from city to city. Call Same Day Plumber any time to reach a licensed plumber in 175 California cities.
Call a Plumber in California (833) 763-0420Plumbing in California: What Differs by City
All California cities use the California Plumbing Code, and plumbers are licensed by the state. Permits come from each city's building department.
One state rule applies everywhere. A new water heater must be strapped or braced against earthquakes.
Water hardness is the biggest difference between cities. Southern California water is mostly hard. San Diego averages about 16 grains per gallon, and Los Angeles runs from about 9 to 16.
Northern California water is often soft. Oakland and Berkeley get Sierra snowmelt at 1 to 7 grains. Sacramento averages about 2 to 5.
Cities that pump from wells vary the most. In San Jose, Bakersfield and Lodi, hardness depends on which wells serve your street.
Home age matters too. San Francisco, Oakland and Long Beach have many older homes with galvanized pipe and old sewer lines.
Most homes in the Central Valley and the Inland Empire sit on concrete slabs. There, slab leaks and water heaters are the usual calls. Fresno, Stockton and Moreno Valley are typical.
A few places get hard freezes. South Lake Tahoe freezes every winter. Palmdale and Lancaster get cold nights in the high desert.
Many cities have more than one water provider. Fontana has 5 and Thousand Oaks has 4. Your water bill names yours.
Some cities make permits easy. Fremont, Sunnyvale and Santa Clarita issue water heater permits online. Berkeley needs a sewer line check before a home is sold.
Pick your city below for local water, permit and repair details, or start with your county.
California Cities With Local Plumbing Guides
- Los Angeles, CAHard water scale · Aging supply lines · Water heater strapping
- San Diego, CAHard water scale · Water heater replacement and strapping · Aging supply lines
- San Jose, CAHard groundwater · Water heater replacement · Aging supply lines
- San Francisco, CAGalvanized and cast iron pipe · Sewer lateral problems · Water heater strapping
- Fresno, CAWater heater replacement · Slab leaks · Tree roots in sewer lines
- Sacramento, CAOld pipes in historic neighborhoods · Tree roots in sewer lines · Water heater replacement
- Long Beach, CAGalvanized supply pipe · Sewer lateral problems · Water heater replacement
- Oakland, CAGalvanized supply pipe · Sewer lateral problems · Water heater replacement
- Bakersfield, CASlab leaks · Water heater replacement · Variable water hardness
- Anaheim, CASlab leaks · Water heater replacement · Aging fixtures and supply lines
- Stockton, CASlab leaks · Water heater replacement · Tree roots in sewer lines
- Riverside, CAHard water scale · Slab leaks · Water heater replacement
- Santa Ana, CAVery hard water · Aging supply lines · Water heater replacement
- Irvine, CAFirst water heater replacements · Hard water wear · Slab leaks
- Chula Vista, CASlab leaks · Old pipe on the west side · Water heater replacement
- Fremont, CAWater heater replacement · Slab leaks · Aging supply and drain lines
- Santa Clarita, CAHard water scale · Slab leaks · Water heater replacement
- Modesto, CAHard water scale · Water heater replacement · Slab leaks
- San Bernardino, CAHard water scale · Old galvanized pipe · Water heater replacement
- Huntington Beach, CAHard water scale · Slab leaks · Salt air corrosion
- Fontana, CAWater heater replacement · Slab leaks · Recurring drain clogs
- Sunnyvale, CAWater heater replacement · Slab leaks · Aging supply lines
- Pasadena, CAHard water scale · Old galvanized pipe · Water heater replacement
- Escondido, CAVery hard water · Slab leaks · Water heater replacement
- Torrance, CASlab leaks · Old galvanized pipe · Water heater replacement
- Roseville, CAFirst water heater replacements · Slab leaks · Irrigation leaks
- Ontario, CASlab leaks · Water heater replacement · Drain clogs in older homes
- Salinas, CAHard water scale · Water heater replacement · Slab leaks
- Santa Rosa, CAWater heater replacement · Slab leaks · Old pipe near downtown
- Oxnard, CAHard water scale · Water heater replacement · Slab leaks
- Hayward, CASlab leaks · Old galvanized pipe · Water heater replacement
- Visalia, CAWater heater replacement · Slab leaks · Drain clogs
- Concord, CASlab leaks · Old galvanized pipe · Water heater replacement
- Elk Grove, CAFirst water heater replacements · Slab leaks · Drain clogs
- Redding, CAWater heater replacement · Slab leaks · Brown water on the east side
- Vallejo, CAOld pipe · Slab leaks · Water heater replacement
- Fairfield, CAWater heater replacement · Slab leaks · Drain clogs
- Rancho Cordova, CAWater heater replacement · Slab leaks · Old pipe
- Citrus Heights, CAWater heater replacement · Slab leaks · Drain clogs
- Folsom, CAPinhole leaks in copper · Water heater replacement · Slab leaks
- Rocklin, CAFirst water heater replacements · Slab leaks · Drain clogs
- Arden-Arcade, CAOld pipe · Slab leaks · Water heater replacement
- Carmichael, CAOld pipe · Root intrusion · Water heater replacement
- El Dorado Hills, CAFirst water heater replacements · Slab leaks · Water pressure problems
- Placerville, CAOld pipe downtown · Frozen pipes · Water heater replacement
- South Lake Tahoe, CAFrozen and burst pipes · Vacation home leaks · Water heater problems
- Galt, CAWater heater replacement · Slab leaks · Scale from well water
- Fair Oaks, CARoot intrusion · Old pipe · Water heater replacement
- Orangevale, CAWater heater replacement · Old pipe · Long service lines
- North Highlands, CAOld pipe · Slab leaks · Water heater replacement
- Antelope, CAWater heater replacement · Slab leaks · Drain clogs
- Rio Linda, CAOld pipe · Long service lines · Water heater replacement
- Foothill Farms, CASlab leaks · Water heater replacement · Old pipe
- Florin, CAWater heater replacement · Slab leaks · Drain clogs
- Cameron Park, CAWater heater replacement · Frozen pipes · Pressure problems
- Auburn, CAOld pipe in Old Town · Frozen pipes · Water heater replacement
- Granite Bay, CAWater heater replacement · Pressure problems · Slab leaks
- Vineyard, CAFirst water heater replacements · Slab leaks · Drain clogs
- Rosemont, CAWater heater replacement · Slab leaks · Old pipe
- Gold River, CAWater heater replacement · Slab leaks · Worn valves and supply lines
- Rancho Murieta, CAWater heater replacement · Slab leaks · Frozen pipes
- La Riviera, CAWater heater replacement · Old pipe · Root intrusion
- Parkway, CAOld pipe · Slab leaks · Water heater replacement
- Lemon Hill, CAOld pipe · Sewer backups · Water heater replacement
- Loomis, CAWater heater replacement · Long service lines · Frozen pipes
- Shingle Springs, CAFrozen pipes · Well pump problems · Water heater replacement
- Diamond Springs, CAFrozen pipes · Old pipe · Water heater replacement
- Rancho Cucamonga, CAHard water scale · Water heater replacement · Slab leaks
- Oceanside, CASalt-air corrosion · Water heater replacement · Slab leaks
- Victorville, CAWater heater replacement · Frozen pipes · Slab leaks
- Inglewood, CAOld pipe · Very hard water · Sewer backups
- Vista, CAHard water scale · Water heater replacement · Slab leaks
- Vacaville, CAWater heater replacement · Slab leaks · Scale in well-fed areas
- Lakewood, CAOld pipe · Slab leaks · Hard water scale
- Upland, CAWater heater replacement · Old pipe · Slab leaks
- Cupertino, CAOld pipe · Slab leaks · Water heater replacement
- Santa Cruz, CAOld pipe · Salt-air corrosion · Water heater replacement
- Paso Robles, CAHard water scale · Water heater replacement · Slab leaks
- La Mesa, CAOld pipe · Roots in sewer laterals · Water heater replacement
- Cerritos, CASlab leaks · Water heater replacement · Aging drains
- Monrovia, CAOld pipe · Roots in sewer laterals · Water heater replacement
- Arcadia, CAHard water scale · Old pipe · Water heater work
- Watsonville, CAHard water scale · Old pipe downtown · Water heater replacement
- Glendale, CAHard water scale · Old pipe · Roots in sewer laterals
- Moreno Valley, CASlab leaks · Water heater replacement · Scale
- Garden Grove, CASlab leaks · Cast iron drains · Water heater replacement
- Santa Clara, CAHard water scale · Aging drains · Water heater replacement
- Berkeley, CAOld pipe · Clay sewer laterals · Water heater replacement
- Fullerton, CAHard water scale · Slab leaks · Old pipe
- Corona, CASlab leaks · Hard water scale · Water heater replacement
- Palmdale, CASlab leaks · Water heater replacement · Freeze damage
- Lancaster, CASlab leaks · Freeze damage · Water heater replacement
- Pomona, CAOld pipe · Roots in sewer laterals · Slab leaks
- Thousand Oaks, CASlab leaks · Water heater replacement · Pressure regulator failure
- Simi Valley, CASlab leaks · Water heater replacement · Pressure regulator failure
- Orange, CAOld pipe in Old Towne · Slab leaks · Roots in sewer laterals
- Yuba City, CASlab leaks · Water heater replacement · Flood damage
- San Rafael, CAOld pipe · Sewer lateral problems · Water heater replacement
- Novato, CAWater heater replacement · Slab leaks · Aging sewer laterals
- Lodi, CAScale · Old pipe · Slab leaks
- Tracy, CASlab leaks · Water heater replacement · Pressure regulator failure
- Manteca, CASlab leaks · Water heater replacement · Scale
- Petaluma, CAOld pipe · Sewer laterals · Water heater replacement
- Rohnert Park, CAWater heater replacement · Slab leaks · Sediment
- Murrieta, CAHard water scale · Water heater replacement · Slab leaks
- Temecula, CAHard water scale · Water heater replacement · Slab leaks
- Menifee, CAWater heater replacement · Slab leaks · Scale
- Burbank, CAHard water scale · Old pipe · Roots in sewer laterals
- Carlsbad, CASlab leaks · Water heater replacement · Corrosion
- El Monte, CAHard water scale · Old pipe · Slab leaks
- Downey, CAOld pipe · Slab leaks · Roots in sewer laterals
- Norwalk, CAOld pipe · Slab leaks · Water heater replacement
- Daly City, CAOld pipe · Sewer laterals · Water heater replacement
- San Mateo, CAOld pipe · Sewer laterals · Water heater replacement
- Clovis, CASlab leaks · Water heater replacement · Hard water scale
- Antioch, CASlab leaks · Water heater replacement · Sewer backups
- Richmond, CAGalvanized supply pipe · Sewer backups · Water heater replacement
- East Los Angeles, CAAging supply and drain pipe · Sewer backups · Drain clogs
- Santa Maria, CAHard water scale · Water softener problems · Water heater failure
- Costa Mesa, CASlab leaks · Cast iron drains · Water heater replacement
- Ventura, CAHard water scale · Slab leaks · Water heater failure
- West Covina, CASlab leaks · Cast iron drains · Water heater replacement
- Jurupa Valley, CAAging supply and drain pipe · Septic and sewer backups · Water heater replacement
- El Cajon, CAHard water scale · Slab leaks · Water heater failure
- Rialto, CASlab leaks · Water heater replacement · Drain clogs
- Chico, CATree roots in sewer lines · Septic and sewer backups · Water heater replacement
- Hesperia, CAFrozen pipes · Septic and sewer backups · Water heater replacement
- San Marcos, CASlab leaks · Water heater replacement · Hard water scale
- Carson, CASlab leaks · Cast iron drains · Water heater replacement
- Compton, CAGalvanized supply pipe · Sewer backups · Slab leaks
- Chino, CASlab leaks · Water heater replacement · Hard water scale
- Mission Viejo, CASlab leaks · Water heater replacement · Failed pressure regulators
- Merced, CASlab leaks · Water heater replacement · Drain clogs
- Indio, CAHard water scale · Water heater replacement · Slab leaks
- South Gate, CAGalvanized supply pipe · Sewer backups · Slab leaks
- Hemet, CAWater heater replacement · Slab leaks · Mobile home plumbing
- Santa Monica, CAAging supply and drain pipe · Sewer backups · Leaks between units
- Westminster, CASlab leaks · Cast iron drains · Water heater replacement
- San Leandro, CAGalvanized supply pipe · Sewer backups · Water heater replacement
- Santa Barbara, CAAging supply and drain pipe · Tree roots in sewer lines · Water heater replacement
- Lake Forest, CASlab leaks · Water heater replacement · Failed pressure regulators
- Whittier, CAGalvanized supply pipe · Slab leaks · Sewer backups
- San Ramon, CASlab leaks · Water heater replacement · Failed pressure regulators
- Livermore, CAHard water scale · Slab leaks · Water heater failure
- Hawthorne, CAAging supply and drain pipe · Sewer backups · Leaks between units
- Newport Beach, CASlab leaks · Corroded valves and fittings · Water heater replacement
- Mountain View, CAAging supply and drain pipe · Sewer backups · Leaks between units
- Buena Park, CASlab leaks · Cast iron drains · Water heater replacement
- Redwood City, CAGalvanized supply pipe · Failing sewer laterals · Water heater replacement
- Alhambra, CAGalvanized supply pipe · Sewer backups · Slab leaks
- Perris, CASlab leaks · Water heater replacement · Hard water scale
- Tustin, CASlab leaks · Water heater replacement · Aging supply and drain pipe
- Milpitas, CASlab leaks · Water heater replacement · Hard water scale
- Napa, CAAging supply and drain pipe · Sewer backups · Water heater replacement
- Chino Hills, CASlab leaks · Failed pressure regulators · Water heater replacement
- Alameda, CAFailing sewer laterals · Aging supply and drain pipe · Water heater replacement
- Pleasanton, CAHard water scale · Slab leaks · Water heater failure
- Bellflower, CAAging supply and drain pipe · Slab leaks · Sewer backups
- Pittsburg, CASlab leaks · Aging supply and drain pipe · Water heater replacement
- Apple Valley, CAFrozen pipes · Septic and sewer backups · Water heater replacement
- Redlands, CAAging supply and drain pipe · Slab leaks · Water heater replacement
- Turlock, CASlab leaks · Water heater replacement · Drain clogs
- Lake Elsinore, CAHard water scale · Slab leaks · Water heater failure
- Tulare, CASlab leaks · Water heater replacement · Drain clogs
- Dublin, CAHard water scale · Water heater replacement · Slab leaks
- Eastvale, CAWater heater replacement · Slab leaks · Worn fixtures and valves
- Camarillo, CAHard water scale · Slab leaks · Water heater replacement
- Baldwin Park, CAGalvanized supply pipe · Sewer backups · Slab leaks
- Walnut Creek, CAAging supply pipe · Sewer lateral trouble · Water heater replacement
- Redondo Beach, CAHard water scale · Aging pipe · Sewer backups
- Madera, CASlab leaks · Drain clogs · Water heater replacement
- Union City, CASlab leaks · Water heater replacement · Sewer lateral clogs
- Palo Alto, CAGalvanized supply pipe · Sewer lateral trouble · Water heater replacement
- Yorba Linda, CAHard water scale · Slab leaks · Water heater failure
- Davis, CASlab leaks · Water heater replacement · Drain clogs
Plumbing Codes, Permit Offices and Water Hardness by California City
| City | Plumbing code | Permits issued by | Water hardness |
|---|---|---|---|
| Los Angeles | Los Angeles Plumbing Code, based on the California Plumbing Code | Los Angeles Department of Building and Safety (LADBS) | Hard |
| San Diego | California Plumbing Code | City of San Diego Development Services Department | Very hard |
| San Jose | California Plumbing Code | City of San José Development Services Permit Center | Hard to very hard depending on the source |
| San Francisco | San Francisco Plumbing Code, based on the California Plumbing Code | San Francisco Department of Building Inspection | Not published |
| Fresno | California Plumbing Code | City of Fresno Building and Safety Services | Not published |
| Sacramento | California Plumbing Code | City of Sacramento Community Development, Building Division | Soft to moderately hard |
| Long Beach | California Plumbing Code | Long Beach Building & Safety, Permit Center | Not published |
| Oakland | California Plumbing Code | City of Oakland Planning and Building Department | Soft to moderately hard |
| Bakersfield | California Plumbing Code | City of Bakersfield Development Services, Building Division | Moderately hard on average |
| Anaheim | California Plumbing Code | City of Anaheim Building Division | Not published |
| Stockton | California Plumbing Code | City of Stockton Permit Center | Moderately hard to hard |
| Riverside | California Plumbing Code | City of Riverside Building and Safety Division | Hard |
| Santa Ana | California Plumbing Code | City of Santa Ana Building Safety Division | Very hard |
| Irvine | California Plumbing Code | City of Irvine Building and Safety | Moderately hard to hard |
| Chula Vista | California Plumbing Code | City of Chula Vista Development Services | Not published |
| Fremont | California Plumbing Code (2025 edition) | City of Fremont Permit Center | Not published |
| Santa Clarita | California Plumbing Code | City of Santa Clarita Building & Safety | Hard |
| Modesto | California Plumbing Code | City of Modesto Building Safety Division | Hard |
| San Bernardino | California Plumbing Code | City of San Bernardino Building & Safety Division | Hard |
| Huntington Beach | California Plumbing Code | City of Huntington Beach Permit Center | Hard |
| Fontana | California Plumbing Code | City of Fontana Building & Safety | Not published |
| Sunnyvale | California Plumbing Code | City of Sunnyvale One-Stop Permit Center | Not published |
| Pasadena | California Plumbing Code | City of Pasadena Permit Center | Very hard |
| Escondido | California Plumbing Code | City of Escondido Building Division | Very hard |
| Torrance | California Plumbing Code | City of Torrance Building and Safety | Not published |
| Roseville | California Plumbing Code | City of Roseville Permit Center | Not published |
| Ontario | California Plumbing Code | City of Ontario Building Department | Not published |
| Salinas | California Plumbing Code | City of Salinas Permit Center | Hard |
| Santa Rosa | California Plumbing Code | City of Santa Rosa Building Division | Moderately hard |
| Oxnard | California Plumbing Code | City of Oxnard Building and Engineering | Hard |
| Hayward | California Plumbing Code | City of Hayward Permit Center | Not published |
| Visalia | California Plumbing Code | City of Visalia Building Safety | Soft to moderately hard |
| Concord | California Plumbing Code | City of Concord Building Division | Not published |
| Elk Grove | California Plumbing Code | Not listed | Not published |
| Redding | California Plumbing Code | Not listed | Soft |
| Vallejo | California Plumbing Code | Not listed | Not published |
| Fairfield | California Plumbing Code | Not listed | Not published |
| Rancho Cordova | California Plumbing Code | Not listed | Not published |
| Citrus Heights | California Plumbing Code | Not listed | Not published |
| Folsom | California Plumbing Code | Not listed | Slightly hard |
| Rocklin | California Plumbing Code | Not listed | Not published |
| Arden-Arcade | California Plumbing Code | Not listed | Varies with the blend of well and surface water |
| Carmichael | California Plumbing Code | Not listed | Not published |
| El Dorado Hills | California Plumbing Code | Not listed | Not published |
| Placerville | California Plumbing Code | Not listed | Not published |
| South Lake Tahoe | California Plumbing Code | Not listed | Not published |
| Galt | California Plumbing Code | Not listed | Not published |
| Fair Oaks | California Plumbing Code | Not listed | Not published |
| Orangevale | California Plumbing Code | Not listed | Not published |
| North Highlands | California Plumbing Code | Not listed | Not published |
| Antelope | California Plumbing Code | Not listed | Not published |
| Rio Linda | California Plumbing Code | Not listed | Not published |
| Foothill Farms | California Plumbing Code | Not listed | Not published |
| Florin | California Plumbing Code | Not listed | Not published |
| Cameron Park | California Plumbing Code | Not listed | Not published |
| Auburn | California Plumbing Code | Not listed | Soft |
| Granite Bay | California Plumbing Code | Not listed | Not published |
| Vineyard | California Plumbing Code | Not listed | Not published |
| Rosemont | California Plumbing Code | Not listed | Not published |
| Gold River | California Plumbing Code | Not listed | Not published |
| Rancho Murieta | California Plumbing Code | Not listed | Not published |
| La Riviera | California Plumbing Code | Not listed | Not published |
| Parkway | California Plumbing Code | Not listed | Not published |
| Lemon Hill | California Plumbing Code | Not listed | Not published |
| Loomis | California Plumbing Code | Not listed | Not published |
| Shingle Springs | California Plumbing Code | Not listed | Not published |
| Diamond Springs | California Plumbing Code | Not listed | Not published |
| Rancho Cucamonga | California Plumbing Code | Not listed | Moderately hard to hard |
| Oceanside | California Plumbing Code | Not listed | Not published |
| Victorville | California Plumbing Code | Not listed | Varies widely by well |
| Inglewood | California Plumbing Code | Not listed | Very hard |
| Vista | California Plumbing Code | Not listed | Hard |
| Vacaville | California Plumbing Code | Not listed | Varies by area |
| Lakewood | California Plumbing Code | Not listed | Hard |
| Upland | California Plumbing Code | Not listed | Not published |
| Cupertino | California Plumbing Code | Not listed | Not published |
| Santa Cruz | California Plumbing Code | Not listed | Moderately hard |
| Paso Robles | California Plumbing Code | Not listed | Hard |
| La Mesa | California Plumbing Code | Not listed | Not published |
| Cerritos | California Plumbing Code | Not listed | Not published |
| Monrovia | California Plumbing Code | Not listed | Not published |
| Arcadia | California Plumbing Code | Not listed | Hard |
| Watsonville | California Plumbing Code | Not listed | Hard to very hard |
| Glendale | California Plumbing Code | Not listed | Very hard |
| Moreno Valley | California Plumbing Code | Not listed | Not published |
| Garden Grove | California Plumbing Code | Not listed | Not published |
| Santa Clara | California Plumbing Code | Not listed | Varies by source |
| Berkeley | California Plumbing Code | Not listed | Soft to moderately hard |
| Fullerton | California Plumbing Code | Not listed | Very hard |
| Corona | California Plumbing Code | Not listed | Hard |
| Palmdale | California Plumbing Code | Not listed | Not published |
| Lancaster | California Plumbing Code | Not listed | Not published |
| Pomona | California Plumbing Code | Not listed | Not published |
| Thousand Oaks | California Plumbing Code | Not listed | Not published |
| Simi Valley | California Plumbing Code | Not listed | Not published |
| Orange | California Plumbing Code | Not listed | Not published |
| Yuba City | California Plumbing Code | Not listed | Not published |
| San Rafael | California Plumbing Code | Not listed | Soft to moderately hard |
| Novato | California Plumbing Code | Not listed | Not published |
| Lodi | California Plumbing Code | Not listed | Varies from 1 to 20 grains per gallon |
| Tracy | California Plumbing Code | Not listed | Soft |
| Manteca | California Plumbing Code | Not listed | Not published |
| Petaluma | California Plumbing Code | Not listed | Not published |
| Rohnert Park | California Plumbing Code | Not listed | Not published |
| Murrieta | California Plumbing Code | Not listed | Not published |
| Temecula | California Plumbing Code | Not listed | Hard |
| Menifee | California Plumbing Code | Not listed | Not published |
| Burbank | California Plumbing Code | Not listed | Very hard |
| Carlsbad | California Plumbing Code | Not listed | Not published |
| El Monte | California Plumbing Code | Not listed | Very hard |
| Downey | California Plumbing Code | Not listed | Not published |
| Norwalk | California Plumbing Code | Not listed | Not published |
| Daly City | California Plumbing Code | Not listed | Not published |
| San Mateo | California Plumbing Code | Not listed | Soft |
| Clovis | Not listed | Not listed | Not published |
| Antioch | Not listed | Not listed | Not published |
| Richmond | Not listed | Not listed | Not published |
| East Los Angeles | Not listed | Not listed | Not published |
| Santa Maria | Not listed | Not listed | Very hard. The city lists a typical blend of about 15 grains per gallon (250 mg/L) |
| Costa Mesa | Not listed | Not listed | Not published |
| Ventura | Not listed | Not listed | Very hard. The city reports about 17 to 39 grains per gallon depending on the source |
| West Covina | Not listed | Not listed | Not published |
| Jurupa Valley | Not listed | Not listed | Not published |
| El Cajon | Not listed | Not listed | Hard. Helix reports its imported water averages 14 grains per gallon |
| Rialto | Not listed | Not listed | Not published |
| Chico | Not listed | Not listed | Not published |
| Hesperia | Not listed | Not listed | Not published |
| San Marcos | Not listed | Not listed | Not published |
| Carson | Not listed | Not listed | Not published |
| Compton | Not listed | Not listed | Not published |
| Chino | Not listed | Not listed | Not published |
| Mission Viejo | Not listed | Not listed | Not published |
| Merced | Not listed | Not listed | Not published |
| Indio | Not listed | Not listed | Not published |
| South Gate | Not listed | Not listed | Not published |
| Hemet | Not listed | Not listed | Not published |
| Santa Monica | Not listed | Not listed | Not published |
| Westminster | Not listed | Not listed | Not published |
| San Leandro | Not listed | Not listed | Not published |
| Santa Barbara | Not listed | Not listed | Not published |
| Lake Forest | Not listed | Not listed | Not published |
| Whittier | Not listed | Not listed | Not published |
| San Ramon | Not listed | Not listed | Not published |
| Livermore | Not listed | Not listed | Moderately hard to very hard |
| Hawthorne | Not listed | Not listed | Not published |
| Newport Beach | Not listed | Not listed | Not published |
| Mountain View | Not listed | Not listed | Soft to moderately hard |
| Buena Park | Not listed | Not listed | Not published |
| Redwood City | Not listed | Not listed | Not published |
| Alhambra | Not listed | Not listed | Not published |
| Perris | Not listed | Not listed | Not published |
| Tustin | Not listed | Not listed | Not published |
| Milpitas | Not listed | Not listed | Not published |
| Napa | Not listed | Not listed | Not published |
| Chino Hills | Not listed | Not listed | Not published |
| Alameda | Not listed | Not listed | Not published |
| Pleasanton | Not listed | Not listed | Variable |
| Bellflower | Not listed | Not listed | Not published |
| Pittsburg | Not listed | Not listed | Not published |
| Apple Valley | Not listed | Not listed | Not published |
| Redlands | Not listed | Not listed | Not published |
| Turlock | Not listed | Not listed | Not published |
| Lake Elsinore | Not listed | Not listed | Not published |
| Tulare | Not listed | Not listed | Not published |
| Dublin | Not listed | Not listed | Hard to very hard |
| Eastvale | Not listed | Not listed | Not published |
| Camarillo | Not listed | Not listed | Hard |
| Baldwin Park | Not listed | Not listed | Not published |
| Walnut Creek | Not listed | Not listed | Very soft on EBMUD water |
| Redondo Beach | Not listed | Not listed | Hard to very hard |
| Madera | Not listed | Not listed | Not published |
| Union City | Not listed | Not listed | Not published |
| Palo Alto | Not listed | Not listed | Soft |
| Yorba Linda | Not listed | Not listed | Very hard |
| Davis | Not listed | Not listed | Much softer since river water arrived. The city measured 2.8 grains per gallon in 2017 |
California Counties With Plumbing Guides
How to Check a Plumber's License in California
Plumbing contractors in California are licensed by the state. Before work begins, ask for the license number and look it up with the Contractors State License Board (CSLB).
Plumbing Services Available Across California
- Emergency PlumbingBurst pipes, flooding, sewage backups and loss of water, any hour.
- Drain CleaningClogged sinks, tubs, toilets and main sewer lines.
- Water Heater Repair & ReplacementNo hot water, leaking tanks, tank and tankless repair or replacement.
- Leak Detection & RepairHidden, slab and pipe leaks found and fixed before they cause damage.
- Sewer Line RepairCamera inspection, sewer repair and trenchless replacement.
- Pipe Repair & RepipingBurst, frozen and corroded pipes repaired or replaced.
- Toilet RepairRunning, clogged, leaking and broken toilets repaired or replaced.
- Faucet & Fixture RepairFaucets, garbage disposals and shower valves.
- Sump Pump RepairSump pump repair, replacement and battery backups.
- Gas Line RepairGas leak repair and appliance hookups by licensed plumbers.
- Water Softeners & FiltrationWater softeners, whole-house filtration and well pumps.
- Commercial Plumbing & BackflowCommercial plumbing service and backflow testing.