Concrete Retaining Walls in Walnut Creek CA - a wall that holds your slope in place
Slope sliding into your yard or an old wall leaning out? We build concrete retaining walls from a designer's plans, with drainage behind them.
- Fully licensed and insured.
- Free in-person estimates.
- We reply within 1 business day.
How do I get a concrete retaining wall built in Walnut Creek?
A concrete retaining wall in Walnut Creek is a poured, precast or interlocking concrete wall built to hold back the weight of the soil behind it, so a slope stays where it is and you get flat ground you can use.
Most people call when a hillside is creeping onto a patio, an old wall has started to lean, or they want a level yard where there's only slope. The price moves with the wall's length and height, the type of wall, how much digging, steel and drainage the design calls for, and how easily we can get equipment to the spot. The schedule turns mostly on the design and any permits, since we don't start until both are settled, and if yours needs a permit we tell you at the estimate and handle the application with the city or county office that covers your address. I come out and write it all up so you can see each part of the job before you decide.
How do you know if you need a new retaining wall?
Wall leaning at the top
If the top of an old wall is tipping out past the bottom, the soil and water behind it are pushing harder than it was built for, often because the water has nowhere to go. A lean usually gets worse with each wet winter, and the longer it goes, the more of the slope comes down with it when it gives.
Mud on the patio
Dirt and mud washing onto your patio, walkway or driveway after rain means the slope is moving and nothing is holding it. Every storm carries a little more down, and soil piling against a slab or the house holds water right where you don't want it.
Cracks that keep widening
A hairline crack can be cosmetic, but one that opens wider or steps out of line usually means the footing is settling or the wall is moving. Catching it early gives you time to plan a new wall properly instead of rushing one in after the old one fails.
How we build a concrete retaining wall
A wall that holds back real weight starts on paper, so when yours calls for an engineer or architect I'll say so at the estimate and we build from their plans. Once the design is set, we dig out for the footing, then either form the wall and tie in the rebar, the steel that keeps concrete from pulling apart under load, and pour it, or set the precast or interlocking units the plans call for. Then we put in the drainage the design shows behind the wall and place the backfill, the soil that goes back behind it, the way the plans say, before we clean up. We stay in touch with your designer the whole way and ask early about any driveway or fence planned near the wall, because those change what it has to carry. If something has to give on budget, I'll trim the finish on the face before I touch the footing or the drain, since nobody sees those once it's backfilled and they're what decide whether the wall stands.
Holding back a slope usually makes flat ground for something else. Plenty of walls go in so a yard can take a pool, and we can build the concrete pool deck around it once the ground is level. Where a wall backs up to a new garage, shop or storage room, we handle the concrete floor installation inside it too.
Poured-in-place concrete
We build the forms on your site, tie the steel inside and pour the wall to fit that exact spot. It suits taller walls, odd shapes and walls that sit near a driveway or carry other extra weight, because the design can be shaped around what's there.
Precast concrete
The wall sections are made off site and set on a prepared footing, so there's less forming and less mess in your yard. They suit straight runs where there's room to bring in the equipment to lift them.
Interlocking concrete units
Heavy concrete units stack and lock together, which suits lower garden walls, terraces and gentle curves. They're easier to fit into a tight backyard, but the designer decides how tall they can go on your slope.
Get a written estimate for your retaining wall
Send the wall's rough length and height and a few photos of the slope. We reply within one business day, then I come out and give you a free written estimate, with no obligation.
- Based in
- Walnut Creek, CA 94596
- Hours
- Mon–Fri: 7 AM–11 PM, Sat–Sun: 6 AM–10 PM
What happens when you call about a retaining wall in Walnut Creek?
Here's how a retaining wall goes from your first call to the final walk-through, with the design and permits settled before anyone picks up a shovel.
Call or send a message
Call (925) 532-0140 or use the form, and tell us roughly where the wall would go and how tall the slope is. We get back to you to set a time for me to come out.
I walk the site with you
I look at the slope and ask how you'll use the ground above and below the wall. You get a written estimate that lists each part, from digging and footing to drainage and backfill, so you can see what you're paying for.
Design and permits get lined up
If your wall needs a permit, an engineer or a designer, we get that lined up before we put you on the schedule. That way nobody digs until the plans are drawn and the permits are in place.
We build it and walk it
My crew and I build the wall, backfill it and clean up, then we walk it with you when it's done. Your satisfaction, guaranteed.
Why Walnut Creek homeowners call Walnut Creek Concrete Works for retaining walls
I look at every wall myself
I come out to every job before it's priced, and I'm on site with my crew while it gets built. The person who talked through your footing and drainage is the one watching them go in.
Fully licensed and insured, every job
We're fully licensed and insured, and that covers retaining walls like everything else we build. A wall holds back real weight beside your house, so it's not a job to hand to someone who can't show you that.
Based in Walnut Creek since 2023
I started this business in Walnut Creek in 2023 after learning the trade on crews around the East Bay, so the city's design and permit rules for walls are part of the plan from the first visit. I'd rather tell you a wall isn't worth building than sell you one that won't hold up.
On a retaining wall, what counts is the footing and the water behind it, and that's what I look at first. Send us a message or call (925) 532-0140 to set up a visit.
Retaining walls and the permits behind them in Walnut Creek
Walnut Creek decides which permits a wall needs, and plenty of walls here need more than one. The city requires a building permit for a retaining wall over 4 feet tall measured from the bottom of the footing, or one that carries a surcharge, which is extra weight on the soil behind it such as a parking area, sloping ground or another retaining wall. A building permit is also needed when the wall takes load from a building or puts load on one, or holds up a mostly solid fence over 3 feet high. A separate Site Development Permit applies to walls more than 3 feet above the lowest ground right beside them, or ones carrying a surcharge, and any tree 9 inches or more across falls under the city's tree preservation rules, which matters when we're digging near one. Tiered walls, lots in an Alquist-Priolo Special Studies Zone and sites with past settling also need a soils report from a registered civil or geotechnical engineer, which adds a step before we dig. I'll tell you at the estimate what I think applies and we handle the application, but it's worth checking your wall against the city's retaining wall rules too.
We're based in Walnut Creek and work across the cities around it, and a lot of the yards we see sit on a slope with a driveway, a fence or a big tree close to where the wall needs to go. That's why I ask about all of them at the first visit, before anything is drawn, and we plan the same way on hillside jobs in Lafayette and Orinda.
Questions about retaining walls in Walnut Creek
How much does a concrete retaining wall cost in Walnut Creek?
Across the US, precast, poured and interlocking concrete retaining walls usually cost about $45 to $270 per linear foot, and that's the market's range, not our price. Height, wall type, how much digging and drainage the design calls for and how hard the site is to reach decide where a wall lands, and your written estimate shows each part on its own line.
Who has to design a retaining wall in Walnut Creek?
In Walnut Creek, retaining walls have to be designed by a licensed architect, a registered civil engineer or a registered structural engineer. That makes the designer your first hire, ahead of the builder, though if you call us first I'm glad to come out and talk through the site with you.
How long does a concrete retaining wall last?
On average, a concrete retaining wall lasts 50 to 100 years, depending on how well it was designed and built, how it's maintained and the soil it holds back. Careful design, solid building and steady upkeep move a wall toward the long end of that range.
What causes retaining walls to fail?
Poor communication on the project team and water that isn't managed cause most of them. One industry talk on retaining wall failures put a large majority down to those two things, so ask how your design handles the water behind the wall and make sure your designer and builder are talking.
Can I add a driveway near my retaining wall later?
It's best to decide before the wall is designed, because adding a driveway near it, changing the backfill behind it or letting water build up there can undo what the design assumed, even when the concrete itself is strong. Tell your designer about any driveway or backfill changes you're planning so the wall is drawn for them.
How do I check that a contractor can legally build my retaining wall in California?
Ask the builder for their license number. California only lets an unlicensed person take a job under $1,000 when the work needs no permit and they employ no one, so a wall that needs a permit falls outside that.
Other concrete work that often goes with a wall
Concrete floor installation
A garage or shop built against your new wall needs a level floor, poured over a base we dig out and pack rather than rake flat.
Concrete pool decks
When a wall levels a slope for a pool, the deck around it needs a finish bare feet can grip and a pitch that sends water away.
Where we build retaining walls in the East Bay
Walnut Creek Concrete Works is based in Walnut Creek, CA, and we build retaining walls in the cities around it, including Concord and San Ramon. The 12 cities below each have their own page, though they aren't the only places we work.
Get your retaining wall planned right
Call (925) 532-0140 or use the form, and mention any driveway, fence or large tree near the wall, since those can change both the design and the permits.