California · 127 covered places · 501 ZIP codes
Plumbers in Los Angeles County, CA
We cover 127 cities and towns in Los Angeles County, California, across 501 ZIP codes, including Los Angeles, Long Beach, Lancaster. About 9,839,000 people live in those ZIP codes. 43% of the homes were built before 1960, so galvanized pipe and old cast iron drains are common.
| Year built | Share of homes |
|---|---|
| Before 1940 | 14% |
| 1940–1959 | 29% |
| 1960–1979 | 28% |
| 1980–1999 | 18% |
| 2000 or later | 11% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Los Angeles | 2,384,216 | 52% |
| Long Beach | 468,810 | 54% |
| Lancaster | 194,781 | 14% |
| Whittier | 187,139 | 63% |
| Palmdale | 186,319 | 9% |
| Glendale | 173,495 | 42% |
| Torrance | 172,123 | 41% |
| Van Nuys | 170,079 | 36% |
| Pomona | 153,902 | 42% |
| North Hollywood | 152,081 | 38% |
What goes wrong in Los Angeles County homes
Pre-1960 homes: galvanized pipe and cast iron
43% of homes in Los Angeles County's covered ZIP codes were built before 1960, 14% of them before 1940. Houses that old often still have galvanized steel supply lines that rust closed from the inside, and cast iron or clay sewer pipe that cracks and lets roots in. Weak pressure at upstairs fixtures, brown water after a shutoff and slow drains are the usual clues. Typical fixes are whole-house repiping and a sewer camera inspection.
Natural gas in most homes
63% of occupied homes here heat with utility gas, so gas water heaters, ranges and dryers are common. That means gas line extensions for new appliances, flexible connector replacements and venting checks when a water heater is swapped. If you smell gas, leave first and call the gas utility from outside. See gas line repair.
1960s and 70s homes reaching end of life
28% of the housing here dates from 1960 to 1979. Original copper supply lines in those homes are now 45 to 65 years old, and cast iron drains of that age scale up inside and crack. Seized shutoff valves, pinhole leaks and recurring main-line clogs are common calls. A camera inspection shows the condition of the sewer line before anyone digs.
Common plumbing work in Los Angeles County
City pages in Los Angeles County
Other covered towns in Los Angeles County
- Acton (1 ZIP)
- Agoura Hills (2 ZIPs)
- Alhambra (6 ZIPs)
- Altadena (2 ZIPs)
- Arcadia (4 ZIPs)
- Artesia (2 ZIPs)
- Avalon (1 ZIP)
- Azusa (1 ZIP)
- Baldwin Park (1 ZIP)
- Bell (1 ZIP)
- Bell Gardens (1 ZIP)
- Bellflower (2 ZIPs)
- Beverly Hills (5 ZIPs)
- Calabasas (2 ZIPs)
- Canoga Park (4 ZIPs)
- Canyon Country (3 ZIPs)
- Carson (5 ZIPs)
- Castaic (2 ZIPs)
- Cerritos (1 ZIP)
- Chatsworth (2 ZIPs)
- City Of Industry (3 ZIPs)
- Claremont (1 ZIP)
- Compton (5 ZIPs)
- Covina (3 ZIPs)
- Culver City (4 ZIPs)
- Diamond Bar (1 ZIP)
- Duarte (3 ZIPs)
- El Monte (4 ZIPs)
- El Segundo (1 ZIP)
- Encino (4 ZIPs)
- Gardena (3 ZIPs)
- Glendora (2 ZIPs)
- Granada Hills (2 ZIPs)
- Hacienda Heights (1 ZIP)
- Harbor City (1 ZIP)
- Hawaiian Gardens (1 ZIP)
- Hawthorne (2 ZIPs)
- Hermosa Beach (1 ZIP)
- Huntington Park (1 ZIP)
- La Canada Flintridge (2 ZIPs)
- La Crescenta (2 ZIPs)
- La Mirada (3 ZIPs)
- La Puente (4 ZIPs)
- La Verne (1 ZIP)
- Lake Hughes (1 ZIP)
- Lakewood (5 ZIPs)
- Lancaster (6 ZIPs)
- Lawndale (2 ZIPs)
- Littlerock (1 ZIP)
- Lomita (1 ZIP)
- Lynwood (1 ZIP)
- Malibu (3 ZIPs)
- Manhattan Beach (2 ZIPs)
- Marina Del Rey (2 ZIPs)
- Maywood (1 ZIP)
- Monrovia (2 ZIPs)
- Montebello (1 ZIP)
- Monterey Park (3 ZIPs)
- Montrose (2 ZIPs)
- Newhall (2 ZIPs)
- North Hills (2 ZIPs)
- Northridge (6 ZIPs)
- Norwalk (3 ZIPs)
- Pacific Palisades (1 ZIP)
- Pacoima (3 ZIPs)
- Palmdale (6 ZIPs)
- Palos Verdes Peninsula (1 ZIP)
- Panorama City (2 ZIPs)
- Paramount (1 ZIP)
- Pasadena (25 ZIPs)
- Pico Rivera (3 ZIPs)
- Playa Del Rey (2 ZIPs)
- Playa Vista (1 ZIP)
- Pomona (4 ZIPs)
- Porter Ranch (1 ZIP)
- Rancho Palos Verdes (1 ZIP)
- Redondo Beach (2 ZIPs)
- Reseda (2 ZIPs)
- Rosemead (3 ZIPs)
- Rowland Heights (1 ZIP)
- San Dimas (1 ZIP)
- San Fernando (2 ZIPs)
- San Gabriel (3 ZIPs)
- San Marino (2 ZIPs)
- San Pedro (4 ZIPs)
- Santa Clarita (5 ZIPs)
- Santa Fe Springs (2 ZIPs)
- Santa Monica (11 ZIPs)
- Sherman Oaks (4 ZIPs)
- Sierra Madre (2 ZIPs)
- Signal Hill (1 ZIP)
- South El Monte (1 ZIP)
- South Gate (1 ZIP)
- South Pasadena (2 ZIPs)
- Stevenson Ranch (1 ZIP)
- Studio City (2 ZIPs)
- Sun Valley (2 ZIPs)
- Sunland (2 ZIPs)
- Sylmar (2 ZIPs)
- Tarzana (2 ZIPs)
- Temple City (1 ZIP)
- Toluca Lake (1 ZIP)
- Topanga (1 ZIP)
- Tujunga (2 ZIPs)
- Universal City (1 ZIP)
- Valencia (3 ZIPs)
- Valley Village (2 ZIPs)
- Venice (2 ZIPs)
- Verdugo City (1 ZIP)
- Walnut (2 ZIPs)
- West Hills (2 ZIPs)
- West Hollywood (1 ZIP)
- Westlake Village (2 ZIPs)
- Whittier (10 ZIPs)
- Wilmington (2 ZIPs)
- Winnetka (2 ZIPs)
- Woodland Hills (4 ZIPs)
Los Angeles County plumbing FAQ
Which towns in Los Angeles County do you cover?
127 places: Acton, Agoura Hills, Alhambra, Altadena, Arcadia, Artesia, Avalon, Azusa, Baldwin Park, Bell, Bell Gardens, Bellflower, Beverly Hills, Burbank, Calabasas, Canoga Park, Canyon Country, Carson, Castaic, Cerritos, Chatsworth, City Of Industry, Claremont, Compton, Covina, Culver City, Diamond Bar, Downey, Duarte, El Monte, El Segundo, Encino, Gardena, Glendale, Glendora, Granada Hills, Hacienda Heights, Harbor City, Hawaiian Gardens, Hawthorne, Hermosa Beach, Huntington Park, Inglewood, La Canada Flintridge, La Crescenta, La Mirada, La Puente, La Verne, Lake Hughes, Lakewood, Lancaster, Lawndale, Littlerock, Lomita, Long Beach, Los Angeles, Lynwood, Malibu, Manhattan Beach, Marina Del Rey, Maywood, Monrovia, Montebello, Monterey Park, Montrose, Newhall, North Hills, North Hollywood, Northridge, Norwalk, Pacific Palisades, Pacoima, Palmdale, Palos Verdes Peninsula, Panorama City, Paramount, Pasadena, Pico Rivera, Playa Del Rey, Playa Vista, Pomona, Porter Ranch, Rancho Palos Verdes, Redondo Beach, Reseda, Rosemead, Rowland Heights, San Dimas, San Fernando, San Gabriel, San Marino, San Pedro, Santa Clarita, Santa Fe Springs, Santa Monica, Sherman Oaks, Sierra Madre, Signal Hill, South El Monte, South Gate, South Pasadena, Stevenson Ranch, Studio City, Sun Valley, Sunland, Sylmar, Tarzana, Temple City, Toluca Lake, Topanga, Torrance, Tujunga, Universal City, Valencia, Valley Village, Van Nuys, Venice, Verdugo City, Walnut, West Covina, West Hills, West Hollywood, Westlake Village, Whittier, Wilmington, Winnetka, Woodland Hills. Enter your ZIP code to confirm coverage for your street.
How old are homes in Los Angeles County?
Across the covered ZIP codes, Census estimates put 43% of homes as built before 1960, 28% from 1960 to 1979, 18% from 1980 to 1999 and 11% in 2000 or later.
Who licenses plumbers in Los Angeles County, CA?
The Contractors State License Board (CSLB) licenses plumbing contractors under the C-36 classification, and its online lookup shows license status.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Los Angeles County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Los Angeles County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.