Concrete Contractor in Discovery Bay, CA - Driveways and Patios Built on a Solid Base
Excel Antioch Concrete Company is a concrete contractor based in Antioch, pouring driveways, patios, walks, steps and pool decks for homes in Discovery Bay, with the ground dug out, packed and graded before the truck arrives.

- Licensed and fully insured.
- Free on-site estimates.
- Replies within 1 business day.
Discovery Bay driveways and backyards as we see them
Discovery Bay sits off Highway 4 in east Contra Costa County, with Brentwood and Oakley as its neighbors to the west. It's mostly homes, and the shopping center, the community center, the marina and the country club are the places everybody knows.
On our jobs here, most calls are about the front driveway, the walk to the door or the yard out back. Lots sit close together, so a backyard patio or pool deck usually means getting concrete past the house through a narrow side yard. That access decides how we pour, whether it's straight from the truck, by pump or by wheelbarrow, before we've set a single form.

Concrete work we do for Discovery Bay homes
Concrete driveway building
When an older driveway has sunk at the edges or cracked across, we tear it out, dig down and pack a new base before the pour.
Concrete patio construction
Most patio calls here are for a bigger, flatter place out back, and we pitch the slab away from the house so water doesn't sit against it.
Stamped concrete services
If you want a patio or entry that looks like stone or brick, stamped concrete presses the pattern into one slab, with the base done the same way.
Concrete sidewalk building
Front walks that have heaved or settled into a trip edge get torn out and repoured, set to meet your driveway and porch at an even height.
Garage floor concrete
A garage floor that's cracked, stained or out of level gets a new slab with the right fall toward the door, so water runs out instead of pooling.
Decorative concrete
Color, exposed stone and patterned borders can dress up an entry or a back patio, and we pour them on a base we dug and packed ourselves.
Concrete retaining walls
Where a yard steps down or a planting bed needs holding back beside a driveway, a concrete wall on a proper footing holds the grade.
Concrete floor installation
For a shop, a converted garage or a room addition, we pour interior floors flat and level so whatever goes on top sits right.
Concrete pool decks
Pool decks see bare feet and splashing all season, so we give them a texture that grips and pitch them to drain away from the pool.
Concrete steps construction
Front steps that rock, crumble or sit uneven are a trip hazard, so we rebuild them with every step the same height on a solid footing.
Slab foundation building
For a new garage, workshop or addition, we lay out and pour the slab it sits on, square and level, with steel set inside.
Foundation installation
When an addition or outbuilding needs a full foundation, we dig, form and pour it to the plans so the walls go up on something true.
Concrete parking lot building
For small business owners here with a shop or office lot, we pour concrete paving with the slope and joints laid out before the trucks arrive.
Concrete footings
A patio cover, a block wall or a deck needs footings dug deep and wide enough to carry it, and we dig and pour them to fit.
Foundation raising
When a slab or part of a house has settled, we find out why first, because lifting it without fixing the cause only buys time.
Concrete cutting
When you need a clean edge, a trench for a line or a bad section of slab removed, we saw-cut it so the rest stays whole.
Get a free written estimate for your Discovery Bay job
We get back to you within one business day. I come out myself, measure the job and send you a written price, free and with no pressure to book.
Call (925) 503-1201- Based in
- Antioch, CA 94509
- Hours
- Mon–Sun: 6 AM–11 PM
Working in Discovery Bay: county permits and state licenses
Discovery Bay has no city government of its own, so the permit question for your job goes to Contra Costa County, not the Town of Discovery Bay, which runs the water, sewer and parks. The county building official issues permits for building, altering or repairing a regulated structure, and when a job needs one, the pour waits until it's issued, so the permit usually sets the start date. Before we start, we check with the county for your address, and if a permit's needed we apply for it as your contractor or help you file it yourself. The other thing to check is the contractor, since California requires a state contractor's license for many jobs like yours, and the questions below cover when.
We're a concrete contractor in Antioch, CA, and Discovery Bay is a straight run out Highway 4 for our crew and the concrete truck. What moves the price here is mostly the ground work, meaning how much old concrete comes out, how much digging and packing the base needs, and how easily the truck reaches the pour. The schedule turns on the permit, if there is one, and on curing, the wait while fresh concrete hardens before it can take your weight or your car's. Your written estimate gives you the price for your job.

Why Discovery Bay driveways and patios need redoing
A lot of the driveways and walks we look at in Discovery Bay have sunk at the edges, cracked across or lifted into a trip edge at the garage. Usually the cause is a base that was raked level instead of dug out and packed, so the slab settled with the dirt under it. We dig down to firm ground and pack the subgrade, the ground the slab sits on, before a form goes up. If the budget's tight, cut the finish, not the base, because nobody sees the base on day one and it's the one part you can't fix once the concrete is down.
Out back, it's usually water and cracks. A patio or pool deck that falls toward the house sends every rain and sprinkler run against your foundation, so I check where the water goes before we set forms. Concrete cracks, and I won't tell you otherwise, so we cut control joints, shallow grooves that give it a place to crack, as soon as the slab will take the saw, and the cracks usually stay in the joints instead of wandering across the middle.
How a concrete job runs when you call us from Discovery Bay
Here's how it goes from your first call or message to the final walk-through, and you'll have a written price in hand before anything gets booked.
Call or send us a message
Call (925) 503-1201 or use the form and tell us what you've got and where it is. We'll set a time for me to come out.
I walk and measure it
I come out myself to look at the slab, the grade, what's around it and how we'll get concrete to it. Then I send you a written estimate, so you know the cost before you decide anything.
We handle permits, then pour
Once you say go, we take care of anything the county needs, and if a permit is required we schedule the pour after it's issued. My crew and I set forms, pour and finish, starting early so the top doesn't dry out too fast in the midday heat.
Walk the finished job together
I walk the finished job with you before we leave and go over the joints, the finish and how to treat the slab while it cures. You'll know when it's ready for feet and when it's ready for the car.
Questions about concrete work in Discovery Bay
Call (925) 503-1201Call the county's Building Inspection Division at 925-655-2700 with your address and what you're planning. The county's list of work that needs no building permit names finish work like tiling and counter tops, not driveways or patios, so it doesn't settle a concrete job on its own. That list is general guidance, and the answer for your address comes from the county.
A retaining wall can be exempt if it's no taller than three feet, measured from the top of the footing to the top of the wall, according to the county's list. A wall that holds back a steep bank or extra weight, like a driveway above it, or one where the ground in front slopes away more than gently, falls outside that exemption. Tell me what's above the wall when I come out, and we'll check with the county before we plan it.
No, the county treats concrete and masonry walls as walls, not fences, and they need a building permit. Fences no taller than 7 feet are on the county's no-permit list, but that doesn't carry over to a block or poured wall along your property line.
Yes, the Contractors State License Board requires a license when the job needs a building permit, uses any additional workers, or totals $1,000 or more in labor and materials. That $1,000 mark is the figure on the board's licensing page, so check with the board for the current amount. We're licensed and fully insured.
You get the price on a written estimate after I measure your driveway, because concrete can't be priced honestly off a phone call. Beyond the tear-out and base work, the size and thickness move it, and so do the rebar we set inside to hold the slab together if it cracks and the finish you pick. A plain broom finish, the brushed texture that gives your tires and shoes some grip, costs less than stamped or colored work.
Longer than it takes before you can walk on it, and I give you both days when we finish, because the wait depends on the mix, the thickness and the weather the week we pour. Driving on it early is how a new slab gets cracked or marked, so keep cars, trailers and delivery trucks off it until that day.
Antioch, CA
Get your Discovery Bay concrete job measured
If a slab is already sinking or holding water, call or send the form now, because settling usually keeps going and the fix grows with it.




