Concrete retaining walls in South Gate CA - a wall that drains and holds the slope
Dirt sliding onto the patio or a wall leaning out? We pour concrete walls that hold the slope and let the water drain out.
- Fully licensed and insured.
- Free in-person estimates.
- We respond within 1 business day.
When does your yard need a concrete retaining wall?
A concrete retaining wall is a wall we form and pour in place to hold back soil where your yard changes height, and in South Gate we build each one for the water and wet dirt that push on it from behind.
Most people call us when a slope keeps sliding onto the patio or an old wall has started to lean. The price moves with the wall's height and length, whether an old wall has to come out first, the shape and finish of the face, and what sits above it. The schedule turns on whether the wall needs a permit or an engineer, and on curing, the days the concrete spends hardening before we can backfill against it. I give you your own number in a written estimate after I've seen the site.
How do you know your yard needs a new retaining wall?
Wall leaning at the top
A wall that tips out at the top usually has more water and wet soil behind it than it was built for, often because the drain is plugged or was never there. Walls don't lean back on their own, and the longer it goes, the more of it usually has to come out.
Mud running onto the patio
Dirt washing over the top or through cracks after rain means the slope has nowhere to go, or the wall is too short for it. Every storm carries more soil down onto your patio or against the house.
Wet streaks, dry weep holes
Damp stains or white crust on the face while the weep holes stay dry usually means water is trapped behind the wall and finding its own way out. Concrete is strong, but it isn't a dam, and that trapped pressure is what usually pushes a wall over.
How we build concrete retaining walls
Water's the enemy on a wall, so I plan the drain pipe, the gravel and the weep holes, small openings low in the wall that let water out, before the forms go up. Then our crew digs out and packs the ground for the footing, the wide base the wall stands on, ties in the rebar, the steel that keeps the concrete from splitting under the load, sets the forms and pours. Once the concrete has cured, we backfill behind it with gravel so water drops to the pipe instead of sitting there pushing. If the height or what's above the wall calls for an engineer, we tell you early, so it's in the price and the schedule from the start. The footing and the drain end up buried, which makes them the first thing people want to trim from a budget, and I'd rather cut the fancy face than the part holding up your hill.
A wall rarely comes alone. The flat ground it leaves behind is often where new concrete pool decks go, and when a wall holds back one side of a shed or workshop, we can handle the concrete floor installation for the slab inside it.
Short yard and planter walls
These hold a flower bed or a small step in the yard, and they suit most homeowners who just want the dirt to stay put. They still get a footing and a way for water to drain, because a short wall can lean too.
Walls with weight above them
When a driveway, a pool or a steep slope sits above the wall, it needs more steel, a bigger footing and often an engineer's design. Poured concrete suits these because it goes in as one solid piece.
Get a written estimate for your retaining wall
We reply within one business day. The estimate is free, done on site and comes with no obligation, and once I've seen the slope and the water you get a written price.
Call (213) 329-1420- Based in
- South Gate, CA 90280
- Hours
- Mon–Sun: 7 AM–10 PM
What happens when you call about a retaining wall in South Gate?
Here's how a retaining wall job runs from your first call to the final walkthrough, and who you'll be dealing with at each step.
Call, then I come look
You call or send the form, and I come out to measure and look at the ground, where the water runs and anything in the way. Then I send a written estimate, so you see the price and the drain plan before anything gets dug.
Permits, then prep and pour
If the wall needs a permit, we handle it and set up the inspections. Our crew does the digging, the steel, the forms and the pour.
Walk the finished wall
Before we pack up, I walk the finished wall with you. I'll show you where the drain lets out, so you know which openings to keep clear.
Why South Gate homeowners call us for retaining walls
The owner looks at your wall
I come out myself to look at the job and write the estimate, and I'm usually there on pour days. The person who planned your drain is the one watching it go in.
Trained on city sidewalk crews
I learned concrete on a municipal crew pouring sidewalk and curb, then started this business in 2023. City work teaches you to set grades and send water where it belongs, and that habit comes along to every wall.
Licensed and insured in California
We're fully licensed and insured. The state licensing board puts forming, pouring and finishing concrete under its C-8 concrete contractor class, so that's the class that covers this work.
Your satisfaction, guaranteed. Ask for an estimate and I'll come take a look at your slope.
Permits, drainage and retaining walls in South Gate
The city's Building and Safety Division skips the permit for a retaining wall only when it's not over 4 feet, measured from the bottom of the footing to the top, and isn't holding up extra weight like a slope or a driveway. The footing counts, so a wall that looks short from the yard can be over that line once you add what's underground, and the city says most digging projects need a permit anyway. Nothing is settled until we've measured your wall against that rule, and when it needs a permit, we pull it and deal with the city for you.
If you'd rather pull the permit yourself as the owner, the city asks for ID showing you live at the property. If a company or an LLC owns it, the city requires a licensed contractor, so landlords can't take the owner-builder route. Before a wall goes in, you can also type your address into the state's EQ Zapp map to see whether your lot sits in a mapped earthquake hazard zone or one that hasn't been evaluated yet. We run the same checks on walls in Lynwood and Downey, where the office that covers your address may be a different one.
Questions about retaining walls in South Gate
Call (213) 329-1420How much does a concrete retaining wall cost in South Gate?
A concrete retaining wall in the Los Angeles area usually costs about $12 to $54 per square foot, and that's the going rate across the market, not our price. Taking out an old wall, a stamped or multi-colored face, curves, extra height and hard digging all push it toward the top. Your written estimate from the site visit gives your own number.
Should I build a poured concrete or block retaining wall?
Pick the type your site needs, because a dry-laid wall of stacked block costs much less than poured concrete. One trade guide favors block for most landscape grade changes since it goes up faster with no forms or cure time, and favors poured concrete for a hard one-piece face, a tight space, a crisp formed line or a wall that doubles as a foundation. The same guide says a rigid poured wall can crack with small ground movement that block joints flex with, so ask how a poured design allows for that.
What causes retaining walls to fail?
Water, most of the time, as pressure from water and wet soil builds up behind the wall until it pushes the wall out. Gravel backfill, a drain pipe and weep holes give that water a way out, so how a wall drains is the first thing to ask any bidder.
When does a retaining wall need an engineer in South Gate?
One trade guide says walls commonly need a licensed engineer once the exposed height passes about 4 feet, or at any height when a slope, driveway, pool or upper wall sits above. The building department that covers your address sets the exact line, so a taller wall may add an engineer's design and some time to the job.
How long does a concrete retaining wall last?
Built right, poured concrete and block walls both last decades, according to one trade guide. The same guide says drainage decides how long a wall lasts more than the material does, so compare bids on how each one handles water, not just on what the wall is made of.
How do I keep retaining wall weep holes from clogging?
Plan for it, because traditional weep holes are likely to clog at some point over the life of a wall. Keep mulch, soil and leaves off the openings and check after a heavy rain that water is coming out. Before the wall is built, ask how its drains can be kept clear.
Related concrete work around a new retaining wall
Concrete floor installation
When the new wall frees up level ground for a shed, workshop or room addition, the slab inside it needs its own base, steel and drainage done right.
Concrete pool decks
A leveled yard is often where a pool deck goes, and that deck has to shed water toward a drain instead of back against your wall.
Service areas for retaining walls around South Gate
Allied South Gate Concrete Company is based in South Gate, CA, and builds retaining walls across the 12 areas listed below, including Huntington Park and Cudahy. If your city isn't on the list, call and ask.
South Gate, CA
Get a price on your retaining wall
When you call (213) 329-1420 or send the form, have the wall's length, its height and what sits above it ready, so I know what I'm walking into.