
Cracked, pitting, or constantly patched garage floor? We replace and finish garage floors in Chino Hills built to handle the local clay soil, summer heat, and years of vehicle use - so you stop patching and start using your garage again.

Garage floor concrete in Chino Hills, CA means removing the old cracked or failing slab, preparing the ground underneath for clay soil conditions, and pouring a fresh four-inch reinforced slab - most standard two-car garages are demo-to-walkable in two to three days, with full vehicle use by day seven.
Most Chino Hills homeowners reach out because their garage floor has been patched once or twice already and the cracks keep coming back. The real problem is almost never the surface - it is the clay-heavy soil underneath, which expands and contracts with the seasons and pushes the slab around no matter how many times you fill the cracks. The fix is a proper base, not another layer of patch compound.
If you are also thinking about what goes on top of the new slab, our decorative concrete service covers the coating and finishing options - from basic sealers to full epoxy floors - that protect the surface and make the space actually usable.
Small hairline cracks are normal and usually harmless. But cracks wider than about a quarter inch, especially ones that seem to be growing, signal that the slab is moving. In Chino Hills, this is typically caused by the clay-heavy soil shifting beneath the floor. Patching will not stop it - it only delays the problem.
If part of your garage floor is noticeably higher or lower than the rest, the soil underneath has shifted. Chino Hills clay soils swell in wet winters and shrink in dry summers, and that movement eventually pushes slabs up or lets them drop. An uneven floor also creates a tripping hazard and can prevent your garage door from sealing properly.
That chalky white deposit - called efflorescence - means moisture is wicking up through your concrete from below. It signals that your slab is absorbing more water than it should. Over time, this moisture weakens the concrete from the inside, causing it to flake and crumble.
If your floor looks rough and pitted, or if you can sweep off small chunks of concrete, the surface layer has deteriorated. Many Chino Hills homes were built in the late 1980s and 1990s, which means original garage floors are now 30-plus years old. Once the surface starts breaking down across a large area, patching is rarely worth the cost.
Every garage floor project starts with demolition of the existing slab and proper preparation of the ground underneath. In Chino Hills, that means checking and correcting the soil compaction, adding a gravel base layer to manage the clay soil movement, and making sure drainage is directing water away from the slab. Skipping this step is the most common reason homeowners end up with another cracked floor a few years later. We pour standard four-inch residential slabs and can go thicker for garages with heavy equipment or larger vehicles.
Once the concrete has cured, we offer coating and sealing options that protect the surface from oil stains, moisture, and the general wear of daily garage use. For homeowners who want more than a plain grey slab, we also work with our concrete floor installation team on specialty finishes - including polished and overlaid surfaces for workshops, ADUs, and converted spaces.
Homeowners replacing a cracked or failed existing floor with a clean four-inch slab, properly prepped for clay soil conditions.
Garages used for trucks, RVs, heavy equipment, or workshop use that need extra thickness to handle the load without cracking.
Homeowners who want basic oil and moisture protection on their finished floor without the cost of a full epoxy coating.
Homeowners who want a hard, easy-to-clean surface that resists chemical spills, tire marks, and heavy traffic - and looks sharp doing it.
Most homes in Chino Hills were built between the late 1970s and mid-1990s, which means original garage floors in many of these homes are now 30 to 45 years old. At that age, even a floor that was well-poured originally is often near the end of its useful life - especially in Chino Hills, where the expansive clay soil has been working on it from below every year. The combination of aging concrete, seasonal soil movement, and occasional moisture wicking means that what looks like a surface problem almost always has a foundation in what is happening underneath.
Summer heat is the other local factor that matters. Chino Hills regularly sees temperatures above 95 degrees Fahrenheit, and concrete poured in the middle of a hot afternoon cures too fast on the surface before fully hardening underneath - which leads to surface cracking. Homeowners in communities like central Chino Hills and those closer to Ontario both deal with the same heat conditions, and both benefit from crews that schedule pours for early morning during summer months.
We come to your garage in person to look at the existing slab, soil conditions, and any drainage concerns. Most estimates are ready within one business day of the visit.
We check whether the scope of your project requires a City of Chino Hills permit and handle the application for you. If your neighborhood has HOA rules, we help you navigate that process before any work begins.
We break up the old slab and haul it away, then inspect and prepare the ground underneath - compacting and leveling the subbase, and adding a gravel layer where needed for the clay soil conditions common in Chino Hills. Summer pours are scheduled early morning to avoid heat-related cracking.
The concrete cures over several days. If you chose a sealer or coating, we return once it has cured enough to apply it. We walk the finished floor with you and confirm when it is ready for vehicle use - typically one week after the pour.
We come to your Chino Hills home, look at the existing floor and soil conditions, and give you a clear written estimate - no vague numbers, no obligation. Most estimates are ready within one business day.
(909) 729-4539The expansive clay soil under many Chino Hills garages is the main reason floors crack prematurely. We prepare the subbase properly before every pour - compaction, gravel base, and correct drainage - so your new floor holds up through the seasonal soil movement that causes so many local slabs to fail.
We check permit requirements with the City of Chino Hills before starting and coordinate the inspector visit when required. Your finished floor comes with the documentation that protects you if you ever file an insurance claim or sell the home.
From a basic penetrating sealer to a full epoxy coating, we finish your floor to match your budget and how you use the space. A sealed or coated floor is easier to clean and holds up significantly longer than bare concrete in the Inland Empire climate.
California requires any contractor doing work valued at $500 or more to hold a valid state license. We carry an active C-8 Concrete Contractor license, which you can verify on the California Contractors State License Board website. We also carry general liability and workers' compensation insurance.
Every garage floor job we take in Chino Hills gets the same treatment: proper subbase work first, the right concrete thickness for how you use the space, and a walkthrough before we leave to make sure you are satisfied with the result. The American Society of Concrete Contractors sets the industry standards for proper subbase preparation and curing practices that we follow on every pour.
Upgrade the look of your garage or outdoor surfaces with stamped patterns, stain, or decorative overlays that add curb appeal and protection.
Learn MoreNeed a concrete floor in a workshop, ADU, or commercial space? We handle new slab installations from the ground up.
Learn MoreSummer books fast in the Inland Empire - reach out now and lock in your project before the schedule fills up.