Terms and Conditions

Effective January 1, 2026

Keystone Corona Concrete, concretecorona.com, service@concretecorona.com

Agreeing to these terms

These terms cover your use of the Keystone Corona Concrete website and any concrete work we do for you. By using this site, asking for an estimate or hiring us, you agree to them. If you don't agree, please don't use the site or book work with us.

When you hire us, you also get a written estimate or contract for your job. If that document and these terms say different things, the document for your job wins, because it's written for your property and your project.

What we do

Keystone Corona Concrete is a concrete contractor based in Corona, CA. We build driveways, patios, sidewalks, steps, pool decks, garage floors, retaining walls, footings and foundations, along with stamped and decorative concrete, concrete cutting and foundation raising. We work in Corona and the cities around it.

The services on our home page and service pages describe the kind of work we do in general terms. They aren't a promise that we can take on a particular job, because every property is different. You can read more about our crew on our About page.

Estimates and pricing

Estimates are free, we give them at your property, and there's no obligation to hire us. An estimate is based on what we can see and measure during the visit, such as the size of the area, how much old concrete has to come out, access for equipment, the ground the slab will sit on, drainage and the finish you choose.

Some things only show up once the old concrete is out or the digging starts, like soft or wet soil, buried roots or debris, or old footings. If we find something that changes the work or the price, we'll stop, show you and explain your options, and we won't go ahead with extra work until you approve it.

Your estimate states how long its price holds. After that date, we may need to update it, because material and labor costs change.

Scheduling, weather and cancellation

We'll agree on a start date with you and do our best to keep it. Concrete depends on the weather, so we may move a pour if rain, high wind or extreme heat would weaken the slab or spoil the finish. If that happens, we'll tell you as soon as we know and set a new date with you.

If you need to cancel or reschedule, let us know as early as you can. Once we've ordered concrete, rebar or forms for your job, or the crew has started work, your contract may require you to pay for those materials and the work already done. Your written estimate or contract states the cancellation terms for your job.

Payment

The payment schedule, the amounts due and the payment methods we accept are listed in your written estimate or contract. Please pay each amount by the date it's due, because we order materials and schedule crews around that plan.

If a payment is late, we may pause the work until your account is current. Any charges for late payment will be stated in your contract and will stay within what California law allows.

Your part of the job

You agree to give our crew safe access to the work area and the route our equipment needs, and to keep children and pets clear while we work. Please tell us about anything we can't see, such as sprinkler lines, private utility lines, septic systems or known drainage problems, so we can work around them.

You're responsible for knowing where your property lines are and for any approval your homeowners association requires. If your job needs a permit, your written contract will say who arranges it.

Concrete, curing and cracking

Concrete is a natural material, so color, texture and finish can vary from slab to slab, and from a sample or photo to the finished job. Stamped and colored concrete will vary too, and the same pattern won't look exactly alike from one pour to the next.

New concrete needs time to cure, which is the wait while it hardens and gains strength before you use it. We'll tell you when it's safe to walk and drive on it. Using it sooner, or letting heavy trucks or equipment onto it, can cause damage we're not responsible for.

All concrete can crack, even when it's built right. We cut control joints, which are planned grooves that give the slab a place to crack where you won't notice it. They make cracks less likely to wander across the surface, but they don't promise a slab will never crack. Small hairline cracks are normal and aren't a defect.

Our guarantee and what it doesn't cover

We guarantee your satisfaction on every job. If something about our work isn't right, call us and we'll come back to look at it and make it right where the problem comes from our workmanship. Any written warranty for your job is stated in your contract.

Our guarantee doesn't cover damage from things outside our control, such as tree roots, ground movement or settling of soil we didn't prepare, earthquakes, flooding, changes to drainage made after we finish, deicing salts or harsh chemicals, heavy loads beyond what the slab was built for, or using the concrete before it has cured. It also doesn't cover normal wear, minor color changes as the concrete ages, or hairline cracks.

Apart from the guarantee above and any written warranty in your contract, and to the extent California law allows, we make no other promises about our work or this website, whether stated or implied.

Limitation of liability

Keystone Corona Concrete is fully licensed and insured. To the extent California law allows, we aren't liable for indirect, incidental or consequential losses, such as lost use of your property, lost income or inconvenience, that come from our work or from using this website.

To the extent the law allows, our total liability for any claim about a job is limited to the amount you paid us for that job. Nothing in these terms limits any right you have that California law says can't be limited.

Using this website

The information on this site is general information about concrete work and our services. It isn't engineering advice for your property, and it doesn't replace an estimate at your house. We try to keep it accurate and current, but we can't promise it's free of errors.

The text, photos and design on this site belong to Keystone Corona Concrete or are used with permission. Please don't copy them for business use without our written okay. If this site links to an outside website, we don't control that site and aren't responsible for its content.

Resolving a disagreement

If you're unhappy with our work or have a billing question, please call us first. Most problems get fixed quickly once we've talked and looked at the job together.

If we can't settle it that way, we both agree to try mediation, which means a neutral person helps us reach an agreement, before either of us goes to court. If mediation doesn't settle it, either of us may take the matter to a court with jurisdiction in Riverside County, California, or to small claims court where the amount allows.

Governing law

These terms and any work we do for you are governed by the laws of the State of California.

Changes to these terms

We may update these terms from time to time, and the version posted on this page is the current one. Changes don't affect a contract you've already signed with us, because that job follows the terms in place when you signed.

Questions about these terms

If you have a question about these terms or about a job, call us at (951) 393-1209 or reach us through our Contact page. We'll get back to you within 1 business day.