Water damage repair and restoration in Altadena, CA
Water damage in Altadena, 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. 78% of Altadena's 15,744 homes were built before 1960, and 38% before 1940, so galvanized pipe, cast-iron drains, plaster walls and older foundations are common. Restoration companies in our network serve 2 Altadena ZIP codes in Los Angeles County.
Quick answer
For water, fire or smoke damage in Altadena, 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; 2 Altadena ZIP codes are covered. With many older homes here, hidden pipe and drain leaks are common, so ask for a moisture check behind walls.
Census data
Altadena homes by the numbers
- Homes
- 15,744
- Median year built
- 1945
- Built before 1960
- 78%
- Owner-occupied
- 78%
Among the 213 California cities with pages on this site, Altadena ranks #184 by number of homes and has older housing than 100% of them (median build year 1945). Its share of pre-1960 homes (78%) 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).
Local risks
What causes water damage in Altadena
Aging pipes and drains
With 78% of homes built before 1960, many Altadena 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.
Common calls
Most requested in Altadena
Disaster history in Los Angeles County
Since 2000, FEMA has included Los Angeles County in 14 major disaster declarations: 7 fires, 5 severe storms, 2 floods. The most recent was Wildfires and Straight-Line Winds in 2025 (DR-4856).
Source: OpenFEMA disaster declarations, retrieved October 5, 2026.
FAQ
Altadena water damage questions
Who do I call for water damage in Altadena?
For water, fire or smoke damage in Altadena, 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; 2 Altadena 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 Altadena?
The median home in Altadena was built in 1945. About 78% of its 15,744 homes were built before 1960 and 5% 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 Los Angeles County had federally declared disasters?
Yes. Since 2000, FEMA has included Los Angeles County in 14 major disaster declarations for storms, floods, fires and similar events, most recently Wildfires and Straight-Line Winds (2025). Federal assistance is only available for declared events; most water damage is handled through homeowners or flood insurance.
Do you cover all of Altadena?
Restoration companies in our network cover 2 Altadena 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 Altadena
91001, 91003
Water damage help near Altadena
- Water damage restoration in Pasadena, CA2 mi
- Water damage restoration in Glendale, CA6 mi
- Water damage restoration in Arcadia, CA7 mi
- Water damage restoration in San Gabriel, CA7 mi
- Water damage restoration in Alhambra, CA8 mi
- Water damage restoration in Rosemead, CA9 mi
- Water damage restoration in Monrovia, CA9 mi
- Water damage restoration in El Monte, CA10 mi
Also covered in Los Angeles County: Canoga Park · Chatsworth · Encino · Granada Hills · Harbor City · Los Angeles · North Hills · North Hollywood · Northridge · Pacific Palisades · Pacoima · Panorama City · Playa Del Rey · Playa Vista · Porter Ranch · Reseda · San Pedro · Sherman Oaks
Guides for Altadena homeowners
Water damage in Altadena?
Stop the source if you can, then call. We'll connect you with a local restoration company that serves your ZIP.
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