La Sierra is the west end of Riverside, between the 91 freeway, the Santa Ana River, and the Norco city line, built out from the late 1950s through the 1970s as single-story slab ranch tracts around La Sierra University and the La Sierra Avenue commercial strip. The 1980s and 1990s added two-story tracts in La Sierra Hills and La Sierra Acres toward the Norco hills, and a handful of older farmhouses from the Hole Ranch days survive on the big lots near the river. About 60,000 people live in the La Sierra neighborhoods.
The river is close. The Santa Ana runs along the north edge, Hole Lake sits in the river bottom near Hidden Valley, and the land near the river is deep, soft alluvial fill that moves when it gets wet. The January 2023 and February 2024 atmospheric rivers put water through the river bottom and across the low streets near Pierce and Collett, and Tropical Storm Hilary did the same in August 2023. The copper under the 1960s slabs has carried hard water for sixty years.
This site routes La Sierra homeowners to an independent local water damage provider by phone. The provider meters the house before setting a scope.
A warm floor in a 1960s La Sierra ranch house is a leak detection call, and the drying afterward is slab leak water damage work. River and street water across a garage slab near the bottom is storm flood cleanup. A tank that failed in a side-yard closet is water heater leak cleanup.
La Sierra University, founded in 1922 on the old La Sierra rancho, anchors the neighborhood at Pierce Street and Sierra Vista and is one of its largest employers. Rebuild permits go through the City of Riverside, and water service in La Sierra is split between Riverside Public Utilities and Western Municipal Water District depending on the street.
Call (951) 631-2989 and tell us what you found. We route the call to a local water damage provider serving La Sierra.
Standing water pulled off slab-floor tile, laminate, and carpet in a Riverside house, then the first meter readings to see how far it ran.
Air movers and dehumidifiers run until slab-side drywall, cabinets, and flooring hit their dry target, even on a cool, damp January week.
A warm tile, a spinning meter, or a soft wall traced to a pitted copper line under the slab or inside a wall before anyone cuts concrete.
Carpet, laminate, and the bottom of the walls soaked by a line that failed under the slab, dried out and documented once the plumber has it stopped.
Muddy street runoff and Santa Ana River bottom water pulled out of a garage or ground floor after an atmospheric river, with contaminated materials removed.
A tank that let go in a garage, side-yard closet, or hall cabinet and the drywall and flooring it soaked on the way across the slab.
A stained, sagging, or dripping ceiling under a second-floor bath, a roof-mounted swamp cooler, or an attic air handler, dried and opened only where wet.
Wet attic insulation, ceilings, and walls dried out after Santa Ana winds lifted tile or a winter storm found the valley flashing.