Concrete contractor in Concord, CA - driveways and patios built on a solid base
Alliance Walnut Creek Concrete Company is a concrete contractor based in Walnut Creek that pours driveways, patios, walks, steps and retaining walls in Concord, CA, with the base, the steel and the drainage worked out first.
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Concord's ranch-house lots and their original concrete
Concord shares a line with Walnut Creek, where we're based, and with Pleasant Hill. It's a bigger, busier city than either, with shops and businesses along the main roads and block after block of single-family homes and duplexes behind them. Most of our calls here come from those streets, and a lot of the houses are ranch-style homes still sitting on their first driveway and back patio, with walks and steps added by whoever owned the place along the way.
That mix shapes the job before we lift a shovel. Tight side yards decide whether we can wheel concrete in or need a pump, and where a lot starts to slope, the ground has to be cut, filled or held back with a wall.
What a Concord job involves before we pour
Whether a concrete job in Concord needs a permit is the city's call, and the city's Permit Center points you to a way to look up which permits a project needs before you ask anyone for a bid. When a sign-off is required we can't pour until it comes through, so the city's timing, more than ours, decides when work starts. Before you hire anyone here, ask to see two things, a state contractor license and a Concord business license, which I cover in the questions below.
We figure out early whether your job reaches the street or needs a city sign-off, and when a permit's needed we handle the application and paperwork for you. After that, the price mostly moves with how much old concrete comes out, how much base the ground needs, whether the truck can reach the spot or we need a pump, and which finish you pick, while the last stretch of the schedule is curing, the wait while new concrete hardens enough to use. A busy street in front of the house matters too, because where the truck can park shapes the whole pour plan, and that's as true here as on our jobs in Oakland. I put your own figures in writing at the estimate.
What do Concord driveways and patios need most?
A lot of Concord's ranch-style houses still have the concrete they were built with, and by now it's usually cracked, lifted at the seams or sunk where the subgrade, the ground the slab sits on, was never packed hard. Patching that rarely holds, so when I look at an old driveway I'm mostly working out whether the base is worth keeping. Usually it isn't, so we dig it out, pack new base and lay rebar, the steel bars that hold a slab together if it does crack.
Water is the other thing I check on every lot here. Old patios and walks often fall toward the house, so water sits against the foundation, and we set the new slab to shed it away from the walls before anything gets poured.
- Call (925) 448-9528
- Mon–Sun: 8 AM–9 PM
- Walnut Creek, CA 94596
Concrete work we do in Concord
Concrete driveway building
Many Concord driveways are the original pour, cracked and lifted after decades on a thin base. We tear out, pack a new base and pour with steel.
Concrete patio construction
Backyard patios here were often poured later on raked dirt, so they sink and tilt. Our concrete patio construction starts with digging out and packing the ground.
Concrete retaining walls
Sloped Concord lots need walls that hold soil and let water drain behind them. We build that drainage in so trapped water doesn't push the wall over.
Concrete cutting
Remodels on older Concord houses often mean cutting through an existing slab. We saw clean, straight lines so new concrete meets old without a ragged edge.
Concrete steps construction
Front steps on ranch homes here tend to crack at the edges and pull away from the porch. We rebuild them with steel inside and even step heights.
Concrete sidewalk building
Walks on Concord lots heave where the base gave out or roots pushed up. We replace the bad panels where we can instead of the whole walk.
How it goes when you call us about a Concord job
Call or send the form
Call (925) 448-9528 or use the form and tell me what's going on with your concrete. I'm usually the one who calls you back to set a time to see it.
I walk the site with you
I come out myself, look at the old concrete, the slope and where the water goes, and ask a lot of questions about what you want. You get a written estimate that shows what's driving the cost, so there's no guessing.
We prep, pour and finish
Once you're ready, we sort out the paperwork and get underground lines marked or scanned before anyone digs. Our own crew then preps the ground, pours and finishes, and I'm on site for the base and the finish, so you don't need to be home for most of it.
Walk the finished job together
At the end I walk the job with you and point out anything you should know about the new concrete. I'll go over how long to stay off it while it cures and how to look after it from there.
Get a written estimate for your Concord concrete job
We reply within one business day, and I'm usually the one who calls you back to set a time to see your Concord property. The estimate is free and in person, I walk the job, ask what you have in mind and put it all in writing, with no pressure and no obligation.
- Licensed and insured.
- Phone
- (925) 448-9528
- Location
- Walnut Creek, CA 94596
- Hours
- Mon–Sun: 8 AM–9 PM
Questions about concrete work in Concord
Do I need a permit to pour a concrete driveway or patio in Concord?
You might, and the city's permit list doesn't settle it for flatwork like driveways and patios, since that older, partial list for single-family and duplex homes names roofs, water heaters, windows and air conditioning instead. If the project moves soil or reaches the public strip along the street, the city says you need separate grading and encroachment permits from its Engineering Division. I check this at the estimate, and we can handle the application if one's needed.
How much does a concrete driveway or patio cost in Concord?
Your price comes from your own site, mainly the size, how much old concrete has to be broken out and hauled off, how much digging and base the ground needs, and how easy it is to get the truck in. A plain broom finish, the light texture that gives feet and tires grip, costs less than stamped or colored work, and any permits add to the total. I walk the job and put each of those in writing at the estimate.
Does a contractor from outside Concord need a Concord business license?
Yes, the City of Concord says anyone doing business in the city needs a business license, and that includes state-licensed contractors and businesses whose office is outside Concord. We work out of Walnut Creek, so the rule reaches contractors like us, and it's a fair question to put to anyone you're thinking of hiring.
When does a concrete contractor need a California state license?
A contractor needs a license from the California Contractors State License Board whenever the project needs a building permit or uses any additional workers, or when labor and materials on one or more contracts for the project come to $1,000 or more. Most concrete jobs on a house hit at least one of those, so ask whoever you hire to show theirs. We're licensed and insured.
How do I keep a new concrete patio in Concord from cracking?
Start under it, because a slab on dug-out, packed base with steel inside moves far less than one poured on raked dirt. Concrete still shrinks as it hardens, so we cut control joints, shallow grooves that give it a straight line to crack along, while it's fresh instead of letting it pick its own spot.
How do I check if my Concord property is in an earthquake hazard zone?
Type your address into the California Geological Survey's EQ Zapp map, which shows whether a property lies in any of its mapped earthquake hazard zones. It's worth a look before foundation or retaining wall work, and I'm glad to talk through what you find when I come out.
Tell us about your Concord concrete project
We pick up seven days a week from 8 AM to 9 PM, so call (925) 448-9528 or send the form and ask which permits your job may need.
Request an estimateCall (925) 448-9528