Water Damage Restoration in California

California markets we serve

Our California coverage includes 776 ZIP codes grouped into 16 local markets. Each market page lists every ZIP code and city it covers.

Water Damage in California: An Overview

California is often associated with drought, but water damage is a regular problem for homes and businesses across the state. The same climate that produces long dry stretches also delivers intense winter storms that can drop large amounts of rain in a short time. Add a large inventory of mid-century homes, widespread slab foundations, seismic activity, and the aftereffects of wildfire, and California property owners face a distinctive mix of water damage risks.

Restore My Water Damage serves selected markets in California, concentrated in Southern California, the Bay Area, and the Central Valley. This page explains the state-specific risks behind water damage, the housing features that affect how damage spreads, the insurance context, and practical steps to take. The markets we serve are listed below this guide, along with ZIP coverage.

California Water Damage Risk Drivers

Atmospheric rivers and winter storms

Atmospheric rivers are long, narrow bands of concentrated moisture in the atmosphere. When one stalls over California, it can produce heavy, persistent rain and mountain snow. These storms supply a large share of the state's annual precipitation, and the strongest ones can cause flooding, mudslides, roof leaks, and saturated ground that pushes water into lower levels and crawl spaces. The winter of 2022 to 2023 brought a series of atmospheric river storms that caused flooding and damage in many parts of the state, a reminder that dry years can be followed by very wet ones.

Because many California homes see little rain for months, roof and drainage problems often go unnoticed until the first major storm. Clogged gutters, cracked flashing, worn roofing, and blocked yard drains are common sources of water intrusion early in the rainy season.

Wildfire followed by flooding and debris flows

Wildfire changes how land handles water. Severe burns can remove vegetation and leave soils that shed water rather than absorb it. When heavy rain falls on burned slopes, runoff can pick up ash, mud, rocks, and debris and move rapidly downhill. The January 2018 debris flows in Montecito, which followed the Thomas Fire, showed how destructive this can be. Properties downslope of recent burn areas can face higher flood and debris risk for several years after a fire.

Water damage from debris flows and post-fire flooding is typically contaminated. Mud and floodwater should be treated as Category 3 water, which affects what materials can be saved and how cleanup must be handled. See water damage categories explained.

Slab leaks

A large share of California homes, especially postwar tract housing, sit on concrete slab foundations with water lines running beneath or through the slab. When those pipes develop leaks, water can spread under flooring, into walls, and along the slab before visible signs appear. Warning signs include:

• Warm spots on the floor, which can indicate a hot water line leak.
• The sound of running water when all fixtures are off.
• An unexplained increase in the water bill.
• A water meter that moves when no water is being used.
• Damp or buckling flooring, or mildew odor with no obvious source.

Slab leaks usually require a plumber for leak detection and repair, followed by drying of the affected flooring and walls. Our structural drying page explains the drying side.

Aging plumbing

Many older California homes were built with galvanized steel water piping, which corrodes from the inside over time. Corrosion can restrict flow and eventually cause leaks at joints and threads. Some homes built in roughly the late 1970s through the mid-1990s may have polybutylene piping, which has a history of failures. Flexible supply lines to toilets, faucets, and appliances are another frequent source of sudden leaks regardless of home age. Our burst pipe cleanup page covers what happens after a supply line fails.

Earthquakes

Seismic shaking can break water lines, dislodge water heaters, and crack fire sprinkler piping. California requires residential water heaters to be braced or strapped to reduce this risk. After any significant earthquake, check for leaks at the water heater, under sinks, and at appliance connections, and know where your main water shutoff is.

Central Valley flooding

Communities in the Central Valley, including the Stockton and Modesto areas, sit in a region shaped by rivers, the Sacramento-San Joaquin Delta, and an extensive levee system. Heavy rain and snowmelt can raise river levels, and low-lying areas can be vulnerable to flooding. Property owners in these areas should check their flood zone and consider flood insurance.

Condensate, water heaters, and fire sprinklers

In hotter inland areas such as the Inland Empire, air conditioning runs heavily for much of the year. Clogged condensate lines and failed drain pans can leak into ceilings or walls. Water heaters in garages, closets, and attics can fail without warning, and commercial buildings and newer multifamily properties have fire sprinkler systems that can release significant water if damaged.

California Housing Features That Affect Water Damage

Homes built before 1978 may contain lead-based paint, and older materials may contain asbestos. Removing water-damaged drywall, plaster, or flooring in these homes should follow lead-safe practices and appropriate testing. Our standards page explains the EPA RRP rule.

California Seasonal Water Damage Risk

California's climate varies widely from the coast to the desert and mountains, so this table is a general guide for the lower-elevation regions where most of our markets are located.

California Insurance Context

Insurance is often the biggest question after water damage. Coverage depends entirely on your policy, but some general points apply in California.

California Department of Insurance

The California Department of Insurance regulates insurance companies doing business in the state. It provides consumer information, a help line, and a process for filing complaints if you believe a claim was handled improperly. If you have questions about your rights during a claim, it is a good place to start.

Flood insurance

Standard homeowners policies typically exclude flood damage. Flood insurance is available through the National Flood Insurance Program (NFIP) in participating communities, and private flood policies may also be available. NFIP policies generally have a waiting period before coverage begins, so it is best not to wait until a storm is forecast. You can check flood zone maps through FEMA's Flood Map Service Center.

The California FAIR Plan

Some California property owners who cannot find coverage in the regular market obtain fire coverage through the California FAIR Plan, which is often paired with a separate policy for other risks. If you have a FAIR Plan policy, review carefully what water damage coverage you have and through which policy.

Common policy issues

• Sudden versus gradual: policies often treat a sudden pipe burst differently from a slow, long-term leak.
• Mudslide and earth movement: these are commonly excluded from standard policies.
• Earthquake: earthquake damage generally requires separate coverage, such as through the California Earthquake Authority or a private insurer.
• Condominiums: the association's master policy and the unit owner's policy may cover different parts of a loss.
• Tear-out and access: coverage for accessing a slab leak may differ from coverage for the resulting water damage.

This is general information, not insurance advice. Always review your own policy language and discuss questions with your insurer or agent. Our insurance claims guide covers the claims process in more detail.

What to Do After Water Damage in California

1. Stay safe. Avoid standing water near electrical outlets or appliances. During storms, follow local evacuation orders, especially near burn scars or rivers.
2. Stop the source. Shut off the main water valve for plumbing leaks. For a suspected slab leak, shut off water and call a plumber.
3. Check gas after earthquakes. If you smell gas, leave and call your gas utility from a safe location.
4. Document the damage with photos and video before cleanup.
5. Protect belongings by moving valuables and lifting furniture off wet floors.
6. Avoid contaminated water. Treat flood and debris-flow water as hazardous.
7. Notify your insurer promptly and keep receipts for emergency expenses.
8. Arrange professional drying for anything beyond a small, clean spill.
9. Take care with older homes. Do not sand or demolish painted surfaces in pre-1978 homes without lead-safe precautions.
10. Check hidden areas such as crawl spaces, wall cavities, and under cabinets.

For more detail, see what to do after a water leak and the restoration checklist.

Prevention Tips for California Properties

• Clean gutters and downspouts before the rainy season and make sure water drains away from the foundation.
• Have your roof inspected after long dry spells, before the first major storm.
• Replace rubber washing machine hoses with braided stainless steel lines and check toilet and faucet supply lines.
• Confirm your water heater is strapped and note its age.
• Consider a leak detection system or automatic water shutoff valve.
• Clear AC condensate lines before summer.
• If you live near a recent burn area, sign up for local emergency alerts and learn evacuation routes.
• If you have galvanized plumbing, ask a licensed plumber about its condition.

More prevention ideas are in our water damage prevention guide.

How California Markets Are Organized

California is too large to describe as a single service area. Our coverage is grouped into markets based on metropolitan regions. In Southern California, markets cover parts of Los Angeles County, including Los Angeles, Long Beach, Inglewood, Torrance, and Whittier; Orange County, including Anaheim, Irvine, Santa Ana, and a Greater Orange County market; and the Inland Empire, including Riverside, Corona, and Moreno Valley. In Northern California, markets include San Jose and Santa Clara in the South Bay, and Stockton and Modesto in the Central Valley.

These regions face different conditions. Coastal Los Angeles and Orange County see mild temperatures but heavy storm runoff and hillside drainage issues. The Inland Empire is hotter, with more air conditioning use and exposure to flash flooding near burned foothills. The South Bay has a mix of older and newer housing on varied foundations. Central Valley communities are shaped by river systems and levees.

Each market below lists the ZIP codes we serve. Use the ZIP lookup on the service areas page to confirm coverage for a specific address.

Services Available in California Markets

• Emergency water damage restoration
• Flood damage restoration
• Storm and rain water damage
• Burst pipe water damage cleanup
• Mold and water damage
• Fire and water damage restoration
• Commercial water damage restoration

Licensing in California: the restoration work is performed by independent providers, and contractor licensing or registration rules in California depend on the type and size of the job. Before work starts, ask your provider for their California license or registration number and proof of liability insurance, and verify it with the state licensing board. Our guide to choosing a restoration company lists the questions to ask.

Helpful California Resources

• California Department of Insurance: consumer help and complaint process.
• NFIP FloodSmart: flood insurance information.
• FEMA Flood Map Service Center: flood zone lookup.
• California Governor's Office of Emergency Services (Cal OES): disaster preparedness and recovery.
• National Weather Service: storm and flood watches and warnings.

For help with water damage in a covered California ZIP code, call (833) 435-4276 or visit the contact page. The markets we serve are listed below.

Frequently Asked Questions