Concrete Contractor in Walnut Creek, CA - Solid Slabs and Walls for Sloped Yards
C&K Pittsburg Concrete Company is a concrete contractor building driveways, patios, steps and retaining walls for homes in Walnut Creek, CA. We're known for the tricky ones, like a wall on a steep yard.
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Concrete work across Walnut Creek's neighborhoods
The short answer: C&K Pittsburg Concrete Company is a concrete contractor based in Pittsburg, CA, and we take jobs across Walnut Creek, from new driveways and patios to retaining walls, steps and foundation work. I come out to look at every job myself, and we plan the base, the drainage and the permit question before anything gets poured.
Walnut Creek has a busy downtown, but most of the work we're asked about here is in the neighborhoods around it, where houses sit on real yards with driveways, side paths and back patios. A lot of those yards back up toward open space like Shell Ridge, which starts a short distance from downtown and runs all the way to Mount Diablo. We also hear from owners of rentals and small shops, and we do the same kinds of jobs next door in Concord and out in Brentwood.
Those settled yards shape the job more than the concrete does. A sloped lot often needs a wall or steps before a patio can sit flat, and a yard full of mature trees and planting means we plan how the truck and forms get in without tearing up what you've grown.
What Walnut Creek yards and driveways ask of concrete
Plenty of yards here aren't flat, and on a slope, a driveway or patio without a solid base and a planned path for the water tends to sink, pool and crack toward the low side. We dig down to firm ground, pack the subgrade, which is the ground the slab sits on, and the gravel base above it in layers, then set a gentle fall so water runs away from your house. Where the yard drops too fast for that, a wall or steps come first.
The other thing we see is older concrete lifted and split by trees that have been growing beside it for decades. Before we break anything out, I look at where the roots run and what's inside the old slab, because hidden steel or a thick edge changes how we cut it and haul it away.
Concrete services we offer in Walnut Creek
Concrete driveway building
When your driveway has sunk, cracked or been lifted by roots, we tear it out, rebuild the base and pour a new one sloped to drain.
Concrete patio construction
For a sloped or soggy back yard, we grade a level spot, pack the base and pour a patio that sheds water away from the house.
Stamped concrete services
When plain gray won't suit a front entry or a garden patio, stamped concrete gives you the look of stone or brick on one solid slab.
Concrete sidewalk building
Side paths and front walks that trip people where they've heaved get repoured on a packed base, with joints cut so cracks follow a line we chose.
Garage floor concrete
If your garage floor is cracked or sinking toward the door, we break it out and pour a new slab with steel inside to hold it together.
Decorative concrete
Colored, exposed-aggregate or patterned finishes work well around a planted yard, and we pick the finish with you so it fits how the space gets used.
Concrete retaining walls
On a yard that drops off, a concrete wall with drainage behind it holds the soil back so you get flat ground you can actually use.
Concrete floor installation
For a basement, workshop, shed or small shop, we pour an interior floor flat and ready for whatever goes on top, from tile to equipment.
Concrete pool decks
Around a pool, we pour a deck with a textured finish for wet feet and a slope that carries splash water away from the pool and the house.
Concrete steps construction
When the path from the driveway to the door climbs a slope, we pour steps that are all the same height so nobody trips on an odd one.
Slab foundation building
For a new addition, garage or backyard cottage, we prepare the ground and pour the slab foundation the building sits on, to the plans you've got.
Foundation installation
When a project needs more than a flat slab, like a raised floor or a building on a sloped lot, we build the foundation the engineer designs for it.
Concrete parking lot building
For a rental, shop or small business lot, we pour concrete thick enough for daily cars and delivery trucks, with drainage planned so water doesn't sit.
Concrete footings
Walls, posts, decks and additions all need footings, the buried concrete that spreads their weight into firm ground, and we dig and pour them to the plans.
Foundation raising
If doors stick, floors slope or cracks are opening in the walls, we work out what's moved and why before raising the house back toward level.
Concrete cutting
When you need a doorway in a wall, a trench through a slab or one bad section taken out, we saw-cut it clean so the rest stays sound.
Get a free on-site concrete estimate in Walnut Creek
Send the form and we'll get back to you within one business day to set up a visit, with no pressure to book. I come out to your Walnut Creek property myself, walk the job with you, ask what you need and write up a free estimate that spells out what's included and what isn't.
What we know from concrete jobs in Walnut Creek
In Walnut Creek, permits come from the city's Community Development Department, and its rules cover properties inside the city limits. The city asks for a building permit when you add a structure or physically change your property, and whether your job falls under that depends on what it is and where it sits on the lot. So I check your project with the city's building staff early in planning, walk you through what they tell us and pull the permit when one is needed, which keeps the paperwork settled before we put a pour on the calendar. We're fully licensed and insured.
What moves the price here is mostly what has to happen before the pour: how much old concrete comes out, how much work the ground needs before it can carry a slab, whether a slope calls for a wall or steps, how close the truck can get on a hillside street, and how plain or decorative you want the finish. The schedule turns on the permit, if there is one, and on curing, the days new concrete needs to harden before you walk or drive on it. Your estimate lays out what's in the price and what isn't. We take the same kinds of jobs in Pleasant Hill and Clayton, and in other cities around Pittsburg, so call even if yours isn't listed.
How a concrete job runs when you call us in Walnut Creek
Here's how a job goes from your first call to the walk-through at the end, including where Walnut Creek's rules on work days fit in. I'm on it at every step.
- Step 01
Call or send the form
Tell us what's going on, whether it's a sunk driveway, a new patio or a wall on a slope. We get back to you to set up a visit at a time you can be there, because I want to walk it with you.
- Step 02
I look the site over
I check the old concrete, the slope and where the water runs, and I ask a lot of questions so I'm not guessing. Then I write up an estimate that lists what's in it and what isn't, so you know exactly what you'd be paying for.
- Step 03
We set dates around the city
We plan the pour around the permit, if there is one, and the city's work days. Walnut Creek requires an after-hours permit for construction on Saturdays and City Holidays and allows none on national holidays like Independence Day, Thanksgiving or Christmas.
- Step 04
We pour, clean up, walk it
Our crew digs out, packs the base, sets the forms and pours, with me running the job alongside them. When it's done we clean up, walk the work with you and tell you when it's ready for feet and when it's ready for cars.
Concrete questions from Walnut Creek homeowners
Do I need a permit to replace my driveway in Walnut Creek?
Replacing the driveway approach, the part where your driveway meets the street, or the sidewalk in front of your house needs an Encroachment Permit from the city. For the rest of the driveway, I check your plans with city building staff before we schedule anything and tell you what they say.
How do I apply for a building permit in Walnut Creek?
You apply through the city's Online Permit Portal, because Walnut Creek no longer takes paper or emailed applications for any permit type. To issue the permit, the city needs the signature of the legal property owner or a California licensed contractor. When we're doing your concrete work, we handle the application.
Can I remove a tree that's cracking my driveway in Walnut Creek?
Not on your own say-so if it's big enough, because the city protects every tree, dead or alive, that measures 9 inches or more at 54 inches above the ground. The City Arborist may approve removing certain trees through a Tree Removal Permit. If the tree stays, we can often reshape or reroute the new slab around the roots, and I'll go over that on the first visit.
What causes a new concrete driveway to crack?
A new driveway usually cracks because of what's under it or what wasn't cut into it. A base that was raked level instead of dug out and packed settles along with the dirt, and control joints, the shallow grooves cut so the slab cracks along a line we chose, do no good if they go in late or get skipped. We pack the base in layers, add rebar, steel bars that hold the slab together if it does crack, where the job calls for it, and cut the joints on time.
How much does a concrete driveway or patio cost in Walnut Creek?
It comes down to what your lot asks for, and here that often means work beyond the slab itself, like a new approach at the street, pouring around a protected tree or pumping concrete up a sloped yard. If the budget gets tight, I'd cut the fancy finish before the base, because nobody sees the base on day one, but a stamped top on a poorly packed base sinks right along with it.
Will a new slab foundation in Walnut Creek have to sit higher in a flood area?
It may, because the city has a proposed code change that would put the lowest floor of a new building in a flood hazard area at the base flood elevation plus 2 feet, or the design flood elevation if that's higher. The proposal would also reach existing buildings going through a substantial improvement or a repair of substantial damage. Since it's still a proposal, I ask city building staff where it stands and whether it touches your lot before we form a slab.
Tell us about your Walnut Creek concrete job
Call (925) 318-8157 or send the form with a few lines about the job, and I'll show up to the first visit with the right questions, including what to ask the city about permits.