Alameda County
San Leandro, CA water damage cleanup and restoration
In San Leandro, CA, the most common water damage sources are leaking appliances and plumbing, roof leaks and storm runoff. 52% of San Leandro's 32,285 homes were built before 1960, so galvanized pipe, cast-iron drains, plaster walls and older foundations are common. Restoration companies in our network serve 4 San Leandro ZIP codes in Alameda County.
Check a San Leandro ZIP
Fast callback on emergency requests · 4 ZIP codes covered
Quick answer
For water, fire or smoke damage in San Leandro, 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; 4 San Leandro ZIP codes are covered. With many older homes here, hidden pipe and drain leaks are common, so ask for a moisture check behind walls.
Local risks
What causes water damage in San Leandro
Aging pipes and drains
With 52% of homes built before 1960, many San Leandro houses still have galvanized supply lines that corrode from the inside and cast-iron or clay drains that crack. Leaks often start slowly inside walls or under floors.
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.
Census data
San Leandro homes by the numbers
- Homes
- 32,285
- Median year built
- 1959
- Built before 1960
- 52%
- Owner-occupied
- 58%
Among the 213 California cities with pages on this site, San Leandro ranks #80 by number of homes and has older housing than 92% of them (median build year 1959). Its share of pre-1960 homes (52%) is well above the 24% average for those cities, which points to more pipe, drain and foundation leaks.
Source: U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates (tables B25034, B25035, B25003); 86,571 residents per the 2024 population estimate.
Disaster history in Alameda County
Since 2000, FEMA has included Alameda County in 7 major disaster declarations: 4 severe storms, 3 floods. 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
San Leandro water damage questions
Who do I call for water damage in San Leandro?
For water, fire or smoke damage in San Leandro, 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; 4 San Leandro ZIP codes are covered. With many older homes here, hidden pipe and drain leaks are common, so ask for a moisture check behind walls.
How old are homes in San Leandro?
The median home in San Leandro was built in 1959. About 52% of its 32,285 homes were built before 1960 and 6% 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 Alameda County had federally declared disasters?
Yes. Since 2000, FEMA has included Alameda County in 7 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 San Leandro?
Restoration companies in our network cover 4 San Leandro ZIP codes. Coverage is set ZIP by ZIP, so enter yours in the ZIP checker or call to confirm a company serves your address.
Common calls
Most requested in San Leandro
ZIP codes covered in San Leandro
94577, 94578, 94579, 94622
Water damage help near San Leandro
- Water damage restoration in Castro Valley, CA5 mi
- Water damage restoration in Oakland, CA6 mi
- Water damage restoration in Hayward, CA6 mi
- Water damage restoration in Alameda, CA6 mi
- Water damage restoration in South San Francisco, CA12 mi
- Water damage restoration in Berkeley, CA13 mi
- Water damage restoration in San Mateo, CA13 mi
- Water damage restoration in San Ramon, CA13 mi
Also covered in Alameda County: Oakland · Fremont · Hayward · Berkeley · Livermore · Alameda · Pleasanton · Dublin · Union City · Castro Valley · Newark · San Lorenzo · Albany · Emeryville · Sunol
Guides for San Leandro homeowners
Water damage in San Leandro?
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