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Serving Whittier, CA and surrounding areas. (562) 358-3090
Hillside soil creeping, an old wall starting to lean, or a slope taking over your backyard? We build concrete retaining walls in Whittier designed for local clay soils and seismic conditions.
Concrete retaining walls in Whittier hold back sloped or shifting soil on hillside properties - most residential projects take two to five days of active work, plus a permit wait of one to three weeks before construction can begin. The finished wall includes a proper drainage system behind it so water pressure does not build up and push the wall forward over time.
A lot of Whittier properties near the Puente Hills foothills have slopes that are slowly losing ground each year. Clay soils expand and contract with the seasons, and older walls built without reinforcement or adequate drainage are the ones most likely to lean or crack. If you are watching a slope creep or an existing wall start to tilt, waiting makes it worse and more expensive to fix.
If your project also needs steps built into the slope or a transition between levels, our concrete steps construction service works well alongside a retaining wall and is often done in the same project visit.
If you can see the ground on a hillside portion of your yard slowly moving downhill - even just an inch or two over a season - the soil is not stable. In Whittier neighborhoods near the Puente Hills, this kind of slow creep can eventually undermine a fence, a patio, or a structure's foundation. It does not stop on its own.
A retaining wall that is tilting forward or has visible cracks running through it is under stress it was not designed to handle. This is especially common in Whittier with older walls built before modern drainage and seismic standards. A leaning wall does not fix itself - it gets worse until it fails.
When rain collects at the bottom of a sloped area rather than draining away, the soil above is not holding properly. Whittier clay soils absorb water slowly, and saturated clay becomes heavy and unstable. A retaining wall with proper drainage behind it redirects that water before it becomes a structural problem.
If a significant portion of your backyard is too steep for a patio, too unstable for planting, or too messy to maintain, a retaining wall can convert that wasted slope into a flat, usable terrace. Homeowners on Whittier hillside lots often reclaim space they have been ignoring for years.
We handle everything from site assessment and permit application through excavation, forming, pouring, drainage installation, and backfill. Every wall includes gravel backfill and drainage pipe behind the concrete so water pressure does not build up against the wall face. For walls over a few feet tall, we place reinforcing steel inside before the pour - this is standard in Whittier given the seismic activity and expansive clay soils in this area. We coordinate city permits and the inspection from start to finish.
Walls that connect to other concrete features - like a concrete floor installation on a lower terrace - can be planned and built together to keep the project scope clean and the schedule tight. We also handle repair and replacement of failed or deteriorating walls, not just new construction.
Best for homeowners who need the strongest possible wall on a steep slope or where heavy soil load is a concern.
Suits homeowners who want a modular build or need a wall that steps around irregular lot shapes.
Good for properties with an existing wall that is leaning, cracking, or showing drainage failure.
Whittier sits at the base of the Puente Hills, and a large share of residential lots in neighborhoods like Friendly Hills are built on sloped terrain. That topography, combined with the expansive clay soils throughout this part of Los Angeles County, means retaining walls here face a combination of pressures that flat-lot cities do not. The clay swells in wet winters and shrinks in dry summers - that repeated movement pushes against whatever holds the soil back. A wall built without accounting for soil type, drainage, and the seismic activity near the Whittier Fault will not last. The City of Whittier Building and Safety Division requires permits for walls over a certain height precisely because these conditions make proper engineering important.
We work on hillside properties throughout the area. Homeowners in Pomona and West Covina face similar slope and soil challenges, and our crews are familiar with what those conditions require from foundation depth to drainage design.
We respond within 1 business day and schedule a free on-site visit. Your property needs to be seen in person - no one can give you an honest quote for hillside work over the phone.
We walk the slope, check soil conditions, measure the area, and give you a written estimate that covers excavation, drainage, forming, pour, permit, and cleanup. No partial numbers or hidden add-ons.
We apply to the City of Whittier Building and Safety Division on your behalf. Permit approval typically takes one to three weeks. No work begins until the permit is in hand.
The crew excavates, forms and pours the wall, and installs drainage before backfilling. A city inspector reviews the work before it is covered. After the concrete cures for about a week, the project is complete.
We respond within 1 business day - no obligation, no pressure. After you submit, someone from our office will call to schedule a free on-site visit. You will have a written quote before any work begins, and we handle the permit process for you.
(562) 358-3090Our California C-8 Concrete Contractor license covers structural work including retaining walls. You can verify our license on the CSLB website in under two minutes. A licensed contractor means accountability and legal recourse if anything goes wrong.
We are based in Whittier - not a franchise dispatching from another county. We know the Puente Hills neighborhoods, the city permit office, and what the local inspector expects to see before signing off on a wall.
Walls over a few feet in Whittier get reinforcing steel inside the concrete as standard practice - not an upgrade. Whittier sits near an active fault, and a wall without internal reinforcement is a wall that is more likely to crack when the ground moves.
We apply for and manage the city permit on every job that requires one - which is most retaining wall projects in Whittier. That means a city inspector checks the work, and you get documentation that protects your home's value.
The American Concrete Institute publishes the standards used for reinforced concrete structural work nationwide - our crews follow these guidelines for mix design, reinforcement placement, and curing so your wall meets the same benchmarks as any commercial project in this area.
If the terrace behind your new wall needs a concrete surface for a patio or workspace, we install floors that work with the retaining structure.
Learn moreSteps cut into or alongside a retaining wall give you safe, permanent access between levels on a sloped Whittier property.
Learn moreCall today for a free on-site estimate - spring permit season fills up fast, and a slope that is already moving will not wait.