Concrete Retaining Walls in Union City CA - a wall planned around water and weight
Slope slumping or an old wall starting to lean? We pour a concrete wall that holds the soil and lets water drain.
What goes into building a retaining wall in Union City?
A concrete retaining wall holds back the soil on a sloped yard in Union City by resisting its sideways push, so the ground above stays put and the flat space below stays usable. A well-built one also has to handle groundwater, the slope around it and earthquake shaking, which is why the planning matters as much as the pour.
Most of the walls I'm asked about sit where a yard drops toward a driveway, patio or house, either because an old wall has started to lean or because you want to level a slope for something new, like a concrete patio. The price moves with the wall's height and length, how much ground has to come out, how easy it is to get equipment to the spot and how much drainage goes behind it, while the schedule turns mostly on permit review and the cure time before soil goes back against the wall. My written estimate lists what's included and what isn't, so you see your own figure before anything is decided.
How we plan and build concrete retaining walls
Before I sketch anything, I ask what sits near the wall now and what you might add later, like a driveway, because parked cars and nearby buildings press on a wall and shape the design more than its height does. Drainage goes into that first sketch too, since water building up behind a wall adds a lot of load and pushes through as leaks. Once the design is set, our crew digs out, pours the footing, the wide base the wall stands on, and ties in rebar, the steel inside that helps the concrete resist the soil's push, then sets forms and pours the wall. We let it cure, the wait while concrete gains strength, before the drainage and backfill go in, and we keep that backfill to the plan, because changing the fill or adding loads later can undo a wall's design even when the concrete is strong.
A retaining wall usually makes room for something, and it helps to plan that work with the wall. If you're cutting into a slope for a backyard pool, our concrete pool decks can be laid out so the deck's runoff and the wall's drains work together. When the wall sits beside a new garage, shop or addition, our concrete floor installation work can be planned at the same time so the slab and the wall's loads are accounted for together.
Permits and ground conditions for retaining walls in Union City
The city's Building Division handles permits for this work, and it takes over-the-counter permits as well as full plan submittals. Its list of work that doesn't need a permit names walls, fences and hedges under seven feet but not retaining walls, so that list doesn't settle your wall, and the Building Division is the office to ask. The state also maps areas prone to liquefaction, which is when soil soaked with water gives way in a quake, and to earthquake-triggered landslides, and cities are required to use those maps when they review building permits, so where your lot sits is part of the picture. When a permit is needed, we take care of the application and inspections and keep you informed along the way.
On jobs around Union City we mostly see walls at the back of hillside lots, along driveways cut into a slope and in yards where an older wall was built with little way for water to get out. We start each one by finding where the water runs on your lot and where it should leave. We're based in Union City and do the same work in Fremont and Hayward, plus Newark and many of the cities around them.
How a retaining wall job works
Call or send a message
When you call or fill out the form, we set a time for me to come out, look at the site and hear what you have in mind. We're reachable 6 AM to 9 PM on weekdays and 7 AM to 9 PM on weekends, so it's easy to find a time.
I walk the site with you
I come out myself to look at the slope, what sits near it and where the water goes, then write an estimate that lists what's included and what isn't. We talk through the choices, like height, drainage and finish, before you decide anything, so you know exactly what you're paying for.
We handle permits and pour
Once you're ready, we take care of any permit steps, dig out, set the footing and forms and pour, with our crew of finishers and laborers doing the work and me checking in on site. The drains go in before the backfill, while we can still see them.
Walk the finished wall together
When the wall is backfilled and the site is cleaned up, I walk it with you and show you where the drain outlets are. I also explain how to keep them working so the wall keeps doing its job.
Get an estimate for your retaining wall and drainage plan
Send us a few details and we'll reply within 1 business day to set a time for me to come out. The estimate is free, done in person at your property and written out so you can see what's included, and there's no pressure to book.
Questions before you build a retaining wall
How much does a concrete retaining wall cost in Union City?
Across the US, hiring a contractor to build a poured concrete retaining wall usually costs about $30 to $50 per square foot, and that's a national figure, not our price. One price report for nearby Pleasanton leaves out removing an old wall, terraced walls, decorative concrete, extra height and curved designs, so expect those to add to a quote. Your written estimate shows what your own wall includes.
What is the best way to drain a concrete retaining wall?
A concrete retaining wall needs a layer of loose drainage stone behind it, filter fabric to keep soil from clogging that stone and perforated drain outlets that stay reachable for cleaning. That's the part I won't trim when a budget gets tight, because it's buried once the backfill goes in and it's what keeps water from building up behind the wall.
How do I keep my retaining wall drains working?
Check the drainage twice a year and walk along the wall after any heavy rain. On that walk, make sure water is coming out of the weep holes, the small openings near the base, and out of the pipe outlet. If they stay dry after a downpour, call us and we'll take a look.
Is my Union City lot in a soils hazard zone?
It may be if you're east of Mission or west of Union City Boulevard, where the city's Building Division lists soils hazard zones. If your lot falls in one, raise it with the Building Division when the plans go in, and I'll ask about it at the estimate so the design accounts for it.
Can a block retaining wall hold up in an earthquake?
One trade group's guide reports that segmental retaining walls, built from stacked concrete blocks, can be more robust than conventional walls when they're properly designed. Its finding comes from how those walls held up after several recent earthquakes, and the key words are properly designed, since the same planning for loads and drainage applies to any wall.
What should I ask a contractor about backfilling a retaining wall?
Ask when they'll backfill and how far back they'll keep heavy equipment from the top of the wall. For block walls, one trade group's note says backfilling waits until the masonry has gained enough strength or the wall is braced, and heavy equipment stays back from the top by a distance equal to the wall's height. I'm glad to walk you through how we'd handle it on your lot.
Why Union City homeowners call Professional Union City Concrete for retaining walls
Trained on crews, open since 2021
I started on concrete crews while I was still in school and learned forms, finishing and cleanup from the finishers who trained me before opening our business in 2021. That background is why I spend the most time on what ends up hidden, like the ground, the footing and the drains.
Licensed and fully insured
We're licensed and fully insured, so you're covered while digging and heavy forms are underway on your property. California's contractor board describes a concrete contractor as one who forms, pours, places and finishes concrete, which is exactly the work a poured retaining wall takes.
Soils zones checked before design
On Union City lots I check whether you're in one of the city's soils hazard zones before I sketch the wall, because it comes up when plans go to the Building Division. Catching it early can save you a redesign after the plans are already in.
On a retaining wall, the work that counts most ends up buried behind it, so I'd rather plan it carefully with you up front. Our promise is simple. Your satisfaction, guaranteed. Request your estimate and we'll set a time for me to come out.
Work that often goes with a retaining wall
Concrete pool decks
Leveling a slope for a pool often means a new deck at the wall's edge, and planning both together keeps runoff headed toward the drains.
Concrete floor installation
If the wall clears room for a garage, workshop or addition, a new concrete floor poured on prepared ground gives that space a solid, level start.
Plan your retaining wall and drainage with us
Call Professional Union City Concrete at (510) 319-6825 or use our estimate form, and have the wall's rough height and length, a few site photos and any plans for a nearby driveway handy so the first visit covers what matters.
