Concrete contractor in Orinda, CA - driveways and walls built for hillside lots
Cornerstone Orinda Concrete is a concrete contractor based in Orinda, building driveways, patios, walks, steps and retaining walls for hillside homes, and setting each one so the water runs away from your house.
- Licensed and fully insured.
- Free quotes on site.
- Expect a reply within 1 business day.
Services in Orinda, CA
Concrete driveway building
Steep driveways here shed water fast and settle when the base is weak. We dig out and pack the ground, then pour concrete driveways that drain away.
Concrete patio construction
Patios here are often cut into a slope, so water from above runs across them. We pitch each one away from the house, toward a drain.
Concrete retaining walls
Sloped yards often need a wall to hold the hill back. We build concrete retaining walls with a drain behind them, so water has somewhere to go.
Concrete steps construction
Hillside entries often climb a run of steps that chip and go uneven with age. We rebuild them with even step heights and a surface that grips.
Concrete sidewalk building
Front walks at older homes crack and lift into trip edges as slabs shift. We break out bad sections and pour new walks on a packed base.
Concrete cutting
Older slabs often need a section cut out for a repair or a drain line. We saw-cut straight edges so the new concrete ties in neatly.
Orinda, CA properties and local conditions
A lot of Orinda houses sit on sloped lots, so the driveway climbs, the patio gets cut into the hill and every hard surface sends water somewhere. When a slab falls toward the house, or the dirt under it was raked flat instead of dug out and packed, you get the pooling, sinking and uneven edges we get called out to fix. We start with the subgrade, the ground the slab actually sits on, digging out the soft stuff and packing it firm, then set the forms so the water runs off toward a spot that can take it.
In the older neighborhoods, storm drains were typically built with corrugated metal pipe, which corrodes over time and costs a lot to repair. So before we tie a driveway drain or downspout line into anything, I look at where it really goes, because pushing more water into a rusted pipe just moves your problem downhill.
How concrete work gets approved and priced in Orinda
Building permits for Orinda jobs come from Contra Costa County, which handles permits and inspections for the city, but on most permit jobs the city's Planning Department has to approve zoning and the waste management plan first, and the county only processes a building permit once every agency involved has signed off. On a job that needs one, that review sets the start date more than our crew does. When your job needs a permit, we pull it as your contractor and handle the paperwork and inspection calls for our part, and I check with the right office before we start rather than guess. Before you hire anyone, look up their California contractor license and ask whether they hold Orinda's business registration certificate.
Getting to the work is half the job here. Plenty of Orinda streets are narrow and winding and plenty of driveways climb steeply off them, so how close a concrete truck can get, how much old concrete has to come out and be hauled away, and how much base and drainage work the ground needs move the price the most. The schedule turns on any permit review and on how much prep the ground takes, and your written estimate lays out what's included. We work the same kind of hills next door in Lafayette and over the ridge in Oakland.
Get a written estimate for your Orinda concrete job, free and on site
Send the form or call, and expect a reply within one business day, most of the time from me. I'll come out to walk your Orinda job with you, look at the ground and where the water goes, and put in writing what's included, like whether hauling the old concrete away is part of it. It's free and comes with no obligation.
(925) 257-6590What happens after you call us about an Orinda job
Call or send the form
Tell us what you're dealing with, whether it's a cracked driveway, a sinking walk or a new patio, and we'll set a time for me to come out. I look at every job myself, so you'll meet the person who prices it.
Walk the lot together
I walk the job with you, listen to what you want and look at the ground, where the water runs and anything in the way. You get a written estimate that spells out what you're paying for, so there's no guessing about what's in it.
Prep, form and pour
Once you're ready, we line up any permits and get the utilities marked before we dig, and on a permit job that review comes before anything else. Then our crew lead and finishers dig out and pack the base, set the forms and pour, and I'm usually there on pour day.
Walk the finished work
I walk the finished concrete with you before we pack up and tell you when it's ready for feet and when it's ready for the car. That wait is curing, the time the concrete needs to gain its strength, and rushing it is how a good slab gets marked up early.
Frequently asked questions
How much does a new concrete driveway cost in Orinda?
The price of a new driveway follows its size and thickness, the finish you pick, and the access, tear-out and base work your lot needs, and I put all of it in writing after walking the job with you. A plain broom finish, the light brushed texture that gives tires and shoes some grip, costs less than stamped or colored concrete. If the budget's tight, I'd rather you trim the decoration than the base, because nobody sees the base on pour day but it's what keeps the driveway from sinking with the dirt, and a fancy finish on a bad base is new paint on a barn with a rotten sill.
Do I need a permit to replace my driveway in Orinda?
If any of the work reaches into the public right-of-way, such as where your driveway meets the street, you need an encroachment permit from the city's Public Works & Engineering. For the rest of the driveway, I check with the county on your job before we start rather than guess. If a permit is needed, we pull it as your contractor.
What is the best way to build a retaining wall on a sloped lot in Orinda?
Start with the height, because under Orinda's rules a retaining wall taller than 3 feet needs a building permit. The city also caps walls at four feet within ten feet of any property line or in the required yard setback, whichever is greater, and at eight feet elsewhere. From there, the wall needs a solid footing and a drain behind it, because water building up behind a wall is what pushes it over, and when an engineer is involved we build from their plans and stay in touch with them.
When does a concrete contractor need a California state license?
A contractor needs a license from the Contractors State License Board whenever a project needs a building permit, uses any additional workers, or totals $1,000 or more in labor and materials. That takes in most driveway, patio and wall jobs, so ask for the license before you sign anything. We're licensed and fully insured.
Does a concrete contractor need a business license to work in Orinda?
Yes, every business operating in Orinda has to get a city business registration certificate before it starts work there. The only exemption is for businesses taking in less than $10,000 a year from work in the city, and even they can register. It's a fair thing to ask any contractor before they start on your house.
What causes a new concrete patio or driveway to crack?
Most cracks in new concrete come from a soft base, water getting under the slab, a pour in the midday heat that leaves a weak, dusty top, or control joints cut late or skipped. Concrete shrinks a little as it cures, so some cracking is normal, and control joints, the shallow lines we cut across the slab, give it a planned place to crack instead of wherever it likes. Where a slab carries a car, rebar, the steel laid inside it, helps hold any crack tight so it doesn't spread apart.
About Orinda, CA
Orinda is mostly houses on winding hillside streets, with a small downtown of restaurants, shops and offices. A lot of the homes in the older neighborhoods have driveways, walks and steps that were poured decades ago and patched more than once since. Some houses sit up above the street, some sit below it, and plenty have a backyard carved right into the slope.
We work the same kind of ground in Moraga and Walnut Creek, and here as there the slope usually decides the job, because how the lot falls sets where the water goes, how much the base needs and how we get concrete to the pour.
Explore the services
Orinda, CA
Let's walk your Orinda job together
The best time to plan where the water goes is before the old concrete comes out, so call (925) 257-6590 or send the form and I'll come take a look.