Concrete patio construction in Antioch CA - a patio built on solid, packed ground
Cracked, sinking or puddling back yard slab? We dig out, pack the base and pour a new concrete patio that sits flat and sheds water.
- Licensed and fully insured.
- Free on-site estimates.
- Replies within 1 business day.
What does it take to build a concrete patio in Antioch?
At Excel Antioch Concrete Company, concrete patio construction in Antioch means our crew digs out your yard, packs a firm base, sets forms, then pours and finishes a flat slab you can put a table and a grill on.
Most people who call about a patio have bare dirt, an old cracked slab or pavers that have heaved, and they want to know the cost, how long they'll lose the yard and whether the new one will crack. The price moves most on how we get concrete to your back yard, by wheelbarrow through a side gate or with a pump over the house, and that matters more than the size. After that it's the ground, because clay that swells needs more under the slab, and then the finish you pick. The schedule turns on the weather, the curing wait and anything the city or county needs before we dig. You get your own number in a written estimate once I've seen the yard.
How do you know your patio needs replacing?
Cracks with one side higher
A hairline crack is normal, but when one side of a crack sits higher than the other, the ground under the slab has moved. Leave it and that edge turns into a trip point, and water keeps working into the gap and making it worse.
A corner that has sunk
A low corner or edge usually means the base was raked level instead of dug out and packed, so the dirt settled and took the slab down with it. It rarely stops on its own, and the more it tips, the more water it sends where you don't want it.
Puddles against the house
Water sitting against your wall after rain or sprinklers means the patio falls toward the house instead of away from it. Every storm sends that water to your foundation, which turns a patio problem into a bigger one.
How we build a concrete patio
We start before anyone picks up a shovel. I look at the route the concrete will take and ask whether your disclosures mention expansive soil, because that decides what goes under the slab. Then we dig out the soft dirt and roots and pack the subgrade, the ground the slab sits on, so it's far less likely to settle the way raked fill does. We set the forms with a slight fall away from the house so rain runs off instead of toward your walls, lay rebar where the job calls for it so the steel holds the slab together if it cracks, and pour. Our crew finishes the top, usually with a broom finish, a light brushed texture that gives you grip when it's wet, then cuts control joints, shallow grooves that give the slab a straight place to crack instead of a random one. We keep it covered or damp while it cures, the slow hardening that gives concrete its strength.
A patio is often one piece of a bigger yard project. If you'd like the surface to look like stone or brick, our stamped concrete services can go into the same pour, and if there's no good way to walk out to the patio, we can add a new concrete sidewalk from the side gate or driveway while the forms and the truck are already there.
Broom-finished patio
This suits most back yards, because the brushed surface grips when it's wet and it's the least expensive finish. If the budget is tight, I'd rather you keep the plain finish and pay for a proper base, since nobody sees the base on day one but it's the part you can't redo once the concrete is down.
Stamped or colored patio
This suits a patio that's the centerpiece of the yard, where you want the look of stone or brick in plain view. It costs more and needs a sealer kept up over the years, so it makes the most sense where people will actually see it.
Get a written price for your new patio
We get back to you within one business day, then I come out, measure the yard and look at access before sending a written price. The estimate is free, and there's no pressure to book.
Call (925) 503-1201- Based in
- Antioch, CA 94509
- Hours
- Mon–Sun: 6 AM–11 PM
What happens when you call about a patio in Antioch?
Here's how a patio job runs on your side, from the first call to the walk-through at the end.
Call or send a message
Call (925) 503-1201 or use the form and tell us roughly what you have in mind. We set a time for me to come look at the yard.
I walk and measure the yard
I come out myself, look at the site, what's around it and how we'll get concrete to it, then send you a written estimate. You see the price for your patio in writing before you decide anything.
We handle permits and pour
Once you say go, we sort out anything the city or county needs, then set forms, pour and finish. Any city review happens before we dig, so it can add time at the front of the job, not the middle.
Walk the finished patio together
I walk the finished job with you before we leave and go over how long to keep off the slab. If something doesn't look right to you, that's the time to say so.
Why Antioch homeowners call Excel Antioch Concrete Company for patios
I measure and price it myself
The person who walks your yard and writes the estimate is the same one working the job with the crew. What we talked about in the yard is what gets built, with nothing lost between a salesman and the pour.
Learned on my dad's jobs
I grew up pouring and finishing beside my dad, and I started this business in Antioch in 2023. What he drilled into me is that the grade and the layout get settled before the truck shows up.
Licensed and fully insured
We're licensed and fully insured. In California, forming, pouring and finishing flat concrete like a patio falls under the state licensing board's C-8 Concrete Contractor class, so it's a fair question to put to anyone bidding your job.
The ground under a patio decides how it holds up, and that starts with someone looking at it in person. Ask for an estimate or call (925) 503-1201.
Patios, walks and permits in Antioch
In Antioch, the city's Building Services Division issues building permits, checks plans against the building codes and inspects the work. The city's building permit page lists the location, the size and the distance from every property line among what it wants to see for decks and patios, and it counts a detached patio cover more than five feet from the house as an accessory structure, the same as a shed or a gazebo. I won't guess whether your slab needs a permit. Before we start, we check with the office that handles your address, and if a permit is needed we apply for it as your contractor or help you file it yourself.
Most patios we pour around here go into fenced back yards with a narrow side yard, so the plan for wheelbarrows or a pump gets settled at the estimate, not on pour day. If your disclosures say nothing about expansive soil, the city's building department is one place to ask, and we deal with the same access and soil questions on jobs in Pittsburg and Oakley.
Questions about concrete patios in Antioch
Call (925) 503-1201Concrete slab work in California usually runs about $9 to $18 per square foot installed, with labor and materials included. That's the going rate across the state, not our price, and on a patio the biggest swing is access, since wheelbarrowing through a side gate or bringing in a pump is the most variable part of the bill. A phone quote off a square-footage number is worth very little, which is why I measure on site and send a written price.
Plan on about a week after the pour before you use it normally. A poured patio typically takes two to three days on site, and the slab needs 7 days of curing before normal use, so keep the furniture and the grill off it for that week.
Clay soil swells as it soaks up water from sprinklers or rain, and that swelling can lift and crack a patio slab. Your home buyer's disclosures or a soil engineer can tell you whether your lot has expansive soil. One national guide says a packed rock base can suit a small, lightly used patio with no sign of serious soil or drainage trouble, but calls for an engineer's design input when the slab connects to the house, carries vehicles, or sits on constant seepage or on clay known to swell and shrink a lot.
Pour early and keep the slab from drying out too fast. National hot-weather guidance calls for dampening the forms and the ground, placing concrete early in the morning where possible, and putting up temporary windbreaks and sunshades. Those steps help limit surface cracking, including the fine web of cracks that forms when the top dries before the water rising through fresh concrete reaches it, so ask any crew which steps they'll take.
It will probably crack somewhere, because concrete cracks where the ground under it moves unevenly. What we control is where and how much, with the packed base and the control joints described above. Getting it right the first time matters, since a repair stays visible and matching older concrete is effectively impossible.
Only on a very small job. California's minor work exemption covers jobs up to $1,000, and only when the work needs no permit and the unlicensed person has no employees. A patio of any real size goes well past that, so ask whoever bids it for their license.
Other concrete work that goes with a patio
Stamped concrete services
If you'd like the patio to look like stone, slate or brick, we press a pattern and color into the concrete while it's still fresh.
Concrete sidewalk building
A new patio gets used more when there's a flat path to it, and we build walks that connect your side gate or driveway to the slab.
Cities we pour patios in around Antioch
Excel Antioch Concrete Company is based in Antioch, California, and pours patios across the 12 cities listed here, from Concord out to Discovery Bay. Those are the cities with their own pages, and we work in plenty of places in between.
Antioch, CA
Get a written price on your patio
Call (925) 503-1201 or use the form with your patio's rough size, a note about your side gate and anything your disclosures say about soil, so the first visit covers what matters.