Water damage restoration in California
- 1,846 ZIP codes covered in California
- 4 city guides
- Free referral, no obligation
What causes water damage in California
Atmospheric rivers
A string of winter storms, as in January 2023, can drop months of rain in days, flooding streets, garages and ground floors statewide.
Burn-scar mudflows
Hillsides stripped by wildfire shed water and debris; the 2018 Montecito debris flow is the worst recent example.
Slab leaks and aging plumbing
Copper under slabs develops pinhole leaks, and galvanized pipe in mid-century homes is at the end of its life.
Homes and how they are built
Southern California is mostly stucco homes on slabs, with plumbing below and flat or low-slope roofs on many buildings. The Bay Area and older parts of Los Angeles have raised-foundation homes with crawl spaces. Apartments and condos are a large share of housing in every major city, and many have ground-level or underground parking that floods first.
When it happens
The rainy season runs roughly November through March. The rest of the year, plumbing and appliance failures cause most damage.
Rules and insurance in California
California requires a Contractors State License Board license for all but the smallest jobs; check the license number before hiring. Landlords have disclosure duties about mold. Earthquakes can also break water lines, which is a separate earthquake-coverage question.
In every state, homeowners insurance excludes rising floodwater, which needs a separate flood policy. See what homeowners insurance covers.
Where we can connect you in California
As of October 5, 2026, independent restoration companies in our network cover 1,846 ZIP codes in 733 cities and towns in California. Coverage changes often, so check your ZIP code.
City guides in California
Los Angeles
San Fernando Valley, Hollywood, the Westside
137 ZIP codes →San Diego
North Park, Pacific Beach, La Jolla
79 ZIP codes →San Francisco
the Mission, the Sunset, the Richmond
50 ZIP codes →San Jose
Willow Glen, Almaden Valley, Evergreen
54 ZIP codes →Covered places include: Los Angeles, San Diego, San Jose, Fresno, San Francisco, Oakland, Long Beach, Pasadena, Bakersfield, Stockton, Anaheim, Riverside, Irvine, San Bernardino, Santa Barbara, Glendale, Burbank, Berkeley, Inglewood, Santa Monica, Modesto, Torrance, Santa Ana, Chula Vista, Orange, Whittier, Oceanside, Fullerton, Concord, Oxnard, Santa Rosa, Moreno Valley, Garden Grove, Santa Cruz, Corona, Hayward.
Services most relevant in California
Slab leak water damage
Leaks in pipes under the foundation.
Learn more →Storm and flood cleanup
Rising water, flash floods and water driven in by storms.
Learn more →
Storm and roof leak water damage
Hail, wind, ice and heavy rain getting in through the roof.
Learn more →
Mold remediation after water damage
Mold that grows when wet materials don't dry in time.
Learn more →See all water damage services or what to do in an emergency.
California at a glance
- Region
- West
- Main causes
- Atmospheric rivers; Burn-scar mudflows; Slab leaks and aging plumbing
- ZIP codes we cover
- 1,846
- Cities and towns covered
- 733
- Coverage data as of
- October 5, 2026
Questions from California homeowners
Is mudflow covered by homeowners insurance?
Generally not. Mudflow is treated as flood and needs a flood policy. Insurers have been directed to cover mudslides directly caused by a covered wildfire in some cases, so ask your insurer about your situation.
Why are slab leaks so common in California?
Millions of homes were built on slabs with copper water lines beneath. Decades of water chemistry, soil conditions and abrasion wear pinholes in the pipe.
How do I check a contractor's license?
Look up the license number on the Contractors State License Board website and confirm it is active and covers the work.
Neighboring states
Water damage in California?
Call and we'll connect you with an independent restoration company that serves your ZIP code. Free, no obligation.