Water damage repair and restoration in Rancho Cucamonga, CA
Water damage in Rancho Cucamonga, CA usually starts in one of a few places: a failed supply line or water heater, a roof or window leak, or water that gets into a basement or crawl space. Rancho Cucamonga has 59,894 homes with a median build year of 1988: 4% predate 1960 and 29% were built since 2000, so plumbing ranges from original copper and galvanized lines to newer PEX. Restoration companies in our network serve 5 Rancho Cucamonga ZIP codes in San Bernardino County.
Quick answer
For water, fire or smoke damage in Rancho Cucamonga, CA, shut off the water or power if it's safe, then call (833) 462-1975. We connect you with an independent restoration company that serves your ZIP; 5 Rancho Cucamonga ZIP codes are covered. Drying should start within 24 to 48 hours to prevent mold.
Census data
Rancho Cucamonga homes by the numbers
- Homes
- 59,894
- Median year built
- 1988
- Built before 1960
- 4%
- Owner-occupied
- 63%
Among the 213 California cities with pages on this site, Rancho Cucamonga ranks #24 by number of homes and has older housing than 18% of them (median build year 1988). Its share of pre-1960 homes (4%) is below the 24% average for those cities, so appliance and supply-line leaks are a bigger share of calls.
Source: U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates (tables B25034, B25035, B25003); 176,675 residents per the 2024 population estimate.
Local risks
What causes water damage in Rancho Cucamonga
Mixed-age plumbing
Rancho Cucamonga's housing spans many decades, so leaks come from both ends: corroded original pipes in older homes and failed supply lines and appliances in newer ones.
Atmospheric rivers
Winter storms bring heavy rain, roof leaks and flooding.
Slab leaks
Leaks in pipes under the slab go unnoticed.
Seasonal risks, licensing and FEMA history across the state are on the California page.
Common calls
Most requested in Rancho Cucamonga
Disaster history in San Bernardino County
Since 2000, FEMA has included San Bernardino County in 8 major disaster declarations: 4 severe storms, 3 fires, 1 flood. The most recent was Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides in 2023 (DR-4699).
Source: OpenFEMA disaster declarations, retrieved October 5, 2026.
FAQ
Rancho Cucamonga water damage questions
Who do I call for water damage in Rancho Cucamonga?
For water, fire or smoke damage in Rancho Cucamonga, CA, shut off the water or power if it's safe, then call (833) 462-1975. We connect you with an independent restoration company that serves your ZIP; 5 Rancho Cucamonga ZIP codes are covered. Drying should start within 24 to 48 hours to prevent mold.
How old are homes in Rancho Cucamonga?
The median home in Rancho Cucamonga was built in 1988. About 4% of its 59,894 homes were built before 1960 and 29% in 2000 or later, according to the Census Bureau's American Community Survey. Older homes are more likely to have corroded pipes and drains; newer homes see more appliance and supply-line leaks.
Has San Bernardino County had federally declared disasters?
Yes. Since 2000, FEMA has included San Bernardino County in 8 major disaster declarations for storms, floods, fires and similar events, most recently Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (2023). Federal assistance is only available for declared events; most water damage is handled through homeowners or flood insurance.
Do you cover all of Rancho Cucamonga?
Restoration companies in our network cover 5 Rancho Cucamonga ZIP codes. Coverage is set ZIP by ZIP, so enter yours in the ZIP checker or call to confirm a company serves your address.
ZIP codes covered in Rancho Cucamonga
91701, 91729, 91730, 91737, 91739
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Also covered in San Bernardino County: Victorville · Patton · San Bernardino · Fontana · Ontario · Rialto · Hesperia · Chino · Upland · Chino Hills · Apple Valley · Redlands · Highland · Yucaipa · Colton · Adelanto · Montclair · Twentynine Palms
Guides for Rancho Cucamonga homeowners
Water damage in Rancho Cucamonga?
Stop the source if you can, then call. We'll connect you with a local restoration company that serves your ZIP.
Fast callback on emergency requests