Concrete Contractor in Concord, CA - Driveways and Patios Built on a Solid Base
King Concord Concrete Works is a concrete contractor based in Concord, CA. We pour driveways, patios, walkways, steps and foundations for homes and small properties across the city, with me on site alongside a small crew.
- Licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
Concord homes and the concrete around them
Concord is home base for us, and most of our calls come from homeowners here, plus some small property owners with a lot or a walkway to redo. The work is mostly single-family houses and duplexes, with driveways, back patios, front walks and steps that have been patched more than once over the years. We do the same work next door in Walnut Creek and Pleasant Hill, and the houses there bring up a lot of the same questions.
On an older Concord lot, the job usually depends on what's under and around the old concrete. Mature trees, a side yard the truck can't reach and a slab poured tight against the house all change how we dig out and how we pour.
Concrete work we do on Concord homes
Concrete driveway building
Many Concord driveways have sunk at the garage lip or cracked over tree roots. We tear out the old slab, rebuild the base and pour new.
Concrete patio construction
For backyards with a tired slab or bare dirt, we pour a patio sloped away from the house so water runs off, not toward your foundation.
Stamped concrete services
For a patio or entry that should look like stone or brick, we press a pattern into fresh concrete, color it and seal it.
Concrete sidewalk building
Front walks that have heaved into trip edges get replaced, and if the work reaches the public sidewalk, we check the city permit side first.
Garage floor concrete
Older garage floors here often carry oil stains, wide cracks and a low spot by the door. We break out and repour, or fix the worst sections.
Decorative concrete
Colored concrete, exposed stone finishes and borders dress up an entry or patio, and we show you samples before you choose one.
Concrete retaining walls
Sloped backyards and side yards often need a wall to hold the dirt back. We build concrete walls with drainage behind them so water doesn't push them over.
Concrete floor installation
For a new shop, studio or room addition, we pour an interior floor that's flat and level enough for whatever goes on it next.
Concrete pool decks
Around a backyard pool, we pour a deck with a textured surface that grips wet feet and sends water away from the pool edge.
Concrete steps construction
Front steps that have cracked, tilted or pulled away from the porch get rebuilt with even step heights, so nobody misjudges one coming home in the dark.
Slab foundation building
For an addition, a garage or a backyard cottage, we pour the slab the building sits on, after checking with the city what the plans call for.
Foundation installation
When a new building needs a full foundation under it, we dig, build the forms, set the steel and pour to the engineer's plans.
Concrete parking lot building
For small property owners with a worn lot or a few spaces behind a building, we pour concrete that handles daily car traffic and drains properly.
Concrete footings
Decks, sheds and patio covers sit on footings, the concrete pads under each post. We dig and pour them sized for what they carry.
Foundation raising
When a corner of a slab or foundation has dropped and doors start sticking, we lift it back toward level and fill the gap beneath.
Concrete cutting
We saw cut openings for doors, drains and new utility lines, and cut out cracked sections cleanly so a patch ties into straight edges.
Get a written estimate for your Concord concrete job
We reply within one business day. I come out to your Concord home, look at the job with you and put a free estimate in writing, and there's no obligation to go ahead.
(925) 536-0945- Based in
- Concord, CA 94519
- Hours
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 8 AM–9 PM
Permits, licenses and scheduling for Concord concrete work
Permits for work on Concord homes go through the City of Concord Permit Center. The city's list of work needing a permit on single-family homes and duplexes is a partial one from an older city handout, and it names things like roofs, water heaters and windows without settling flatwork, our word for driveways, patios and walks, so I check what your address and your job call for before we pick a pour date, and we handle the paperwork when a permit is needed. That check is usually what sets the start date. Before you hire anyone, ask for two things, a California contractor license from the Contractors State License Board and a Concord business license, which the city requires of every contractor working here, including ones whose office is in another city. We're licensed and insured.
Price mostly follows the size of the job, how much old concrete has to come out and the finish you pick, and I write all of that into the estimate so you can see what you're paying for before you decide. We work the same way in Clayton and Martinez, checking with whichever city or county office covers the address.
Why Concord driveways and patios crack and sink
The cracked, sunken driveways we see around Concord usually didn't fail because of the concrete itself. Somebody raked the dirt level instead of digging it out and packing a solid base, so the slab settled as the dirt did, and the control joints, the shallow cuts that tell a slab where to crack, went in late or not at all, so it cracked where nobody chose. We dig down to firm subgrade, the ground the slab rests on, pack the base and cut the joints on time. If the budget's tight, the base is where I'd spend and the finish is where I'd save, because you can redo a surface later but you can't fix a bad base without tearing the whole thing out.
The other thing I look for is where the water goes. A patio or driveway that tips back toward the house sends water against your foundation and leaves it pooling by the garage door, so we check the slope before we build any forms and set the new slab to carry water away.
How a concrete job runs when you call us in Concord
From your first call to the last walk-through, here's how a job with us goes and who you'll be dealing with along the way.
Call or send us a message
Call (925) 536-0945 or use the form, tell us what you've got and where, and we set a time for me to come out. A photo or two of the old slab helps, but it isn't required.
I look at it with you
I walk the site with you, check the base and where the water runs, and explain the choices, from thickness to finish. You get the estimate in writing, so you know what you're paying for before you decide anything.
We handle permits, then pour
Once you're set, we sort out the city or county side, then dig out, build the forms and pour, with me on site alongside our form setters and finishers. You don't need to be home for the pour as long as we can reach the work.
We walk the finished job
When the forms come off, we walk it together and I explain curing, the wait while concrete hardens and gains strength. I'll tell you when it's ready for foot traffic and when it's ready for a car.
Questions about concrete work in Concord
How much does a new concrete driveway cost in Concord, CA?
I give you that number in a written estimate after I've seen your driveway, because the same square footage can price very differently from one house to the next. Beyond size and tear-out, the price moves with thickness, whether it needs rebar, the steel bars that keep the pieces from drifting apart if it cracks, and the finish. A plain broom finish, the light brushed texture that keeps shoes and tires from slipping, costs less than stamped or colored work.
Will a new concrete patio crack like my old one in Concord?
A hairline crack or two can still show up, because concrete shrinks as it cures, but a slab on a packed base with joints cut on time usually doesn't break up the way an old one on loose dirt did. We also pour early in the day, because concrete finished in midday heat can end up with a weak, dusty top.
How do I find out which permits my concrete project needs in Concord?
Start with the city's Permit Center page, which points you to a way to look up zoning and see which permits a project requires. It's a sensible first step before you collect bids, and if you'd rather not, I check it for your address as part of the estimate.
Do I need a separate permit if my driveway work reaches the sidewalk in Concord?
Yes, the city says work in the public right-of-way, the strip along the street, needs a separate encroachment permit, and moving soil needs a separate grading permit, both from its Engineering Division. Those come on top of any building permit, so they're worth sorting early, and we take care of that paperwork when your job needs it.
When does a concrete contractor need a California state license?
A contractor needs a state license when the project requires a building permit, uses any additional workers, or when labor and materials on one or more contracts for the project add up to $1,000 or more. Ask every bidder for their license before you sign anything.
How do I check whether my Concord home is in an earthquake hazard zone?
Type your address into EQ Zapp, the California Geological Survey's statewide map tool, and it shows whether the property lies in any of its mapped earthquake hazard zones. That's worth knowing before you plan a new slab foundation or a retaining wall, so bring what it shows to the estimate.
Concord, CA
Tell us about your Concord concrete job
Send a few lines about the project with your address, and I can look into which permits apply before I come out, so the estimate covers the whole job.