Concrete patio construction in Concord CA - a slab that drains and grips when wet
Old patio cracked, sunken or holding puddles? We dig out, pack the base and pour a sloped slab with a finish you've felt first.
- Licensed and insured.
- Free in-person estimates.
- Expect a reply within 1 business day.
What does it take to build a concrete patio in Concord?
Concrete patio construction in Concord, CA means pouring a new slab over firm, packed ground, sloped so water runs away from your house and finished so it holds your footing. Most of the waiting comes after the pour, while the concrete cures.
Most patio calls start with an old slab that's cracked, sunk at a corner or holding water by the back door, or with a patch of dirt you're tired of tracking inside. The price moves with the size, how much old concrete and soft ground has to come out, how easy the yard is to reach and the finish you choose. If your back door sits above the yard, new concrete steps down to the slab add to it too. The schedule turns on the digging and base work, the weather on pour day and the stretch after the pour when we keep the slab damp so it hardens slowly and strong. My written estimate puts your own numbers on all of that.
How do you know your patio needs replacing?
Puddles that sit for hours
If water stands on the patio or runs toward the back wall after rain or the sprinklers, the slab has usually settled or was poured without enough fall away from the house. The longer you wait, the more water ends up against your foundation, and the greener and slicker that low spot gets.
Cracks with a raised edge
When one side of a crack sits higher than the other, the ground under the slab gave way, usually because it was raked level instead of dug out and packed. That edge catches toes and chair legs, and it tends to grow as the dirt underneath keeps moving.
Dusty, flaking top surface
If the top wears off as powder or flakes away in patches, the slab was often poured in midday heat or dried out too fast. That weak top layer keeps shedding every season, and patching over it rarely holds for long.
How we handle concrete patio construction
On a patio the finish is what your bare feet deal with, so before you choose I let you feel a smooth sample and a broom finish, a light texture dragged in with a stiff broom, and see how each grips when it's wet. Then we mark out the control joints together, the grooves we cut so that when the slab cracks it cracks along a line we picked instead of across the middle. On the job we break out any old slab, dig out the topsoil and soft spots, and pack the subgrade, the soil or gravel the slab rests on, until it's firm. We set forms so the slab falls away from your house and lay rebar, steel bars that hold the slab together. We pour early in the day so midday heat doesn't leave a weak, dusty top, then finish it, cut the joints on time and keep it damp while it cures. If the budget's tight, I'd keep the base work and go plainer on the surface, because you'll never see the base again once it's poured, and a nice finish on ground that settles is still a cracked patio.
A patio rarely stands alone. If you'd like a pattern that looks like stone or brick, our stamped concrete services press it into the same pour, and if you need a way to reach the patio from the driveway or side gate, our concrete sidewalk building crew can form the path at the same time so the two meet at the same height.
Broom-finished slab
This suits most open patios and any yard with kids, dogs or a hose nearby, because the texture gives your feet something to hold. It's also the plainest finish, so more of your budget goes into the base.
Smooth troweled finish
This suits a covered patio that stays dry, where you want a clean look that's easy to sweep. Out in the open I'll usually talk you toward texture instead.
Stamped or colored surface
This suits a patio that's the center of the yard and the place you entertain. It costs more than a plain slab and still needs the same packed base underneath it.
Get a written estimate for your new patio
Send the form and we'll get back to you within one business day to set a time. I come out, walk the yard with you and leave a free written estimate, with 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
What happens when you call about a patio in Concord?
Here's how a patio job runs from your first call to the final walk-through, and who you'll be dealing with at each step.
Call or send the form
You reach us at (925) 536-0945 or through the form, and we set a time for me to come out. A rough size and a few photos of the yard help me show up with the right questions.
Walk the yard together
I look at the ground, the slope and where the water runs, then explain the finish and joint choices. You get a written estimate that spells out the base work, the finish and the price, so you know what each part costs before you decide.
Sort out the city side
Once you're set, we find out what the city or county that covers your address needs for your patio before anyone digs. That's covered in more detail below.
Pour, cure and walk it
I'm on site with our form setters and finishers from the dig through the pour. When it's ready, we walk the finished patio with you and point out where the joints are and why.
Why Concord homeowners call King Concord Concrete Works for patios
The owner comes out and stays
I look at the job and write the estimate myself, and I work on site with our small crew when we pour. You explain your yard once, to the person who'll be there building it.
In business since 2020
I learned concrete on small jobs and on other people's crews before starting King Concord Concrete Works in 2020. We stand behind the work with satisfaction guaranteed on every job.
Licensed and insured in California
We're licensed and insured, and the Contractors State License Board is the state office that licenses and regulates contractors here. Its rules also cap what a contractor can take up front, which the questions below spell out.
The part of a patio you'll never see decides how it holds up, so ask for an estimate and I'll show you what we'd do under yours.
Patios, walkways and permits in Concord
Whether your patio needs a permit depends on the job and the address, so we check before we dig instead of guessing. In Concord, the city's Project Pal tool shows which permits a project needs and estimates the fees, and a staff member at the Concord Permit Center is there to help during regular hours with no appointment needed. If your address falls under the county instead, we check there. When a permit is needed, we handle the paperwork.
In the yards we work in, we see plenty of older patios poured flat or tipped toward the house, and slabs that sank where the base was only raked smooth. We find the same on jobs in Walnut Creek and Pleasant Hill, and the fix doesn't change: dig out, pack it firm and set the slope before the pour.
Questions about concrete patios in Concord
Will my new concrete patio crack?
Probably somewhere, yes, because all concrete tends to crack and nobody can pour a slab that's truly crack-free. A good job manages it with a packed base, joints that give cracks a place to go and proper curing. Plan on a few fine lines rather than none.
Does wire mesh or rebar stop a concrete patio from cracking?
No, mesh and rebar can't stop a slab from cracking, but placed in the right spot in the slab they keep cracks narrower. What you're paying for with steel is tighter cracks that hold together, not a slab that never cracks.
What is the best concrete finish for a patio that gets wet?
A broom finish is the usual practical choice when grip matters, because the texture gives your shoes something to catch. Smooth concrete can get slick when it's wet, dusty or growing algae, so I keep it for covered spots that stay dry.
How much does a new concrete patio cost per square foot?
A concrete patio installed in San Francisco usually runs about $6 to $15 per square foot, covering materials, labor and site prep. That's the going rate in the city, not our price. Your size, the digging and the finish decide where yours lands, and your written estimate gives you the real figure.
How long does a new concrete patio take to cure?
New concrete should be kept moist for at least 3 days, either sprayed with a liquid curing compound or covered with damp burlap. That early dampness lets it harden slowly instead of drying out weak on top. I'll tell you on the walk-through when it's ready for furniture.
How much can a contractor ask for up front on a patio in California?
On a home improvement job in California, a contractor can't ask for or accept a down payment of more than $1,000 or 10 percent of the contract price, whichever is less. That's the Contractors State License Board's rule, and any later payments have to be listed in the contract and tied to work already done or materials already delivered to your home.
Concrete work that pairs with a new patio
Stamped concrete services
If you'd like the patio to look like slate, brick or flagstone, a pattern and color pressed into the fresh concrete gives you that look in one pour.
Concrete sidewalk building
When the walk from your driveway or side gate to the new patio crosses grass or loose gravel, a poured path keeps the trip steady and level.
Service areas for concrete patio work
King Concord Concrete Works is based in Concord, California, and builds patios in the cities around it. The 12 places below have their own pages, from Antioch to Martinez, and if your city isn't listed, call and ask.
Concord, CA
Get a price on your new patio
Call (925) 536-0945 or send the form with the patio's rough size, the finish you're leaning toward and a few yard photos, so our first visit starts with your yard instead of the basics.