Garage Floor Concrete in Simi Valley CA - a solid, level floor under your car
Cracked, chipped or sinking garage floor? We check what's under it, then resurface or replace it so it's solid again.
- Licensed and insured.
- Free quotes on site.
- Replies within 1 business day.
What does a garage floor concrete job involve?
Garage floor concrete work in Simi Valley comes down to one of two jobs. We either lay an overlay, a thin new top layer, over your old slab, or tear the slab out and pour a new one. Which one fits your garage depends more on what's going on under the surface than on how the top looks.
Most calls start with a floor that's cracked, chipped or dusty, or one section that's dropped below the rest by the door. The price moves with the size of the garage, whether we resurface or tear out, how much base work the ground needs once the old concrete is up, and whether you want a coating on top. The schedule turns on that same choice, because a new slab needs curing, the wait while concrete hardens enough to take weight, before you park on it, and a coating adds its own wait after that. I'll give you the figure for your floor in a written estimate once I've seen it.
How can you tell your garage floor needs work?
A crack with a lip
If one side of a crack sits higher than the other, the slab has moved, usually because the ground underneath shifted. Waiting lets that edge grow into a trip hazard and lets water get under the slab, and once that happens an overlay usually isn't an option.
One section dropped near the door
A section that's sunk by the house door or the garage door is usually sitting on fill that was raked level instead of dug out and packed, or fill that water has washed away. The longer it sinks, the more water pools there and the bigger the step gets.
Dust and flakes on top
A floor that sheds powder or flakes when you sweep usually has a weak top layer, often from a pour finished in midday heat or mixed too wet. It won't stop on its own, and a coating laid over it tends to lift right along with it.
How we handle garage floor concrete
Before we talk about an overlay, I check whether the old slab has moved, because a new top layer won't fix a floor that's shifting. If it's sound, we clean and grind the surface, fill the cracks and lay the overlay. If it isn't, we saw-cut and break out the old concrete, haul it off, then dig out and pack the subgrade, the dirt and gravel the slab sits on, so the new floor doesn't settle the way the old one did. We set forms so the floor meets the house door and the driveway at the right height and sheds water out the garage door instead of back toward the house. Then we lay rebar, the steel inside that holds the slab together if it cracks, and pour early in the day so the top doesn't dry out in the midday heat. After finishing, we cut control joints, shallow grooves that give the concrete a straight place to crack instead of a random one. If you want a coating on the new floor, we build the wait for it into your plan. The base is the part nobody sees once the concrete is down, and it's the first thing people want to cut from the budget. I'd rather spend there and keep the finish simple, because a nice surface on a soft base cracks anyway.
Garage work often runs into the rest of the lot. If you'd like the floor to be more than bare gray, decorative concrete can add color or pattern, and it's easier to plan before the pour than after. When a garage is cut into a slope and the yard is crowding the back wall, we look at concrete retaining walls first, because a new floor won't do much good if the ground behind it keeps moving.
Overlay over a sound slab
This suits a floor that's flat and solid but worn, stained or chipped on top. It costs less and wraps up sooner than a tear-out, but it only works on concrete that's staying put.
Tear-out and a new slab
This suits a floor that has sunk, heaved or cracked through, or one you plan to live with for a long time. It's more work, but it fixes the base instead of covering it up.
Get a written estimate for your garage floor
We get back to you within one business day to set up a visit. I come out, look the floor over and give you a free written estimate, with no pressure and no obligation.
(805) 261-5009- Based in
- Simi Valley, CA 93065
- Hours
- Mon–Fri: 6 AM–9 PM, Sat–Sun: 8 AM–10 PM
What happens after you call about your garage floor?
From your first call to the finished floor, here's who does what and what you'll have in hand before you decide anything.
Call or send a message
Tell us the size of the garage and what the floor is doing, and send photos of the cracks if you can. Then we set a time for me to come out.
I look the floor over
I walk the garage, ask a lot of questions and give you a written estimate that says whether we'd resurface or replace and what the price covers. If something can't be known until the old concrete comes up, the estimate says so.
We permit, prep and pour
Once you say go, we sort out any permit with you, and the city runs plan reviews and inspections every day. Then the crew lead and our crew prep and pour while I check in at the base, the forms and the joints before we hand the floor back to you.
Why homeowners in Simi Valley hire us for garage floors
I come out and estimate myself
I framed houses for years before I moved to concrete and started this business in 2017, and I'm the one who walks your garage and writes the estimate. You get your answers from the person who'll be checking the base and the joints later, not from a salesperson.
Licensed and insured contractor
We're licensed and insured, and California only allows unlicensed work on jobs up to $1,000 that need no permit and have no hired help, so nearly any garage floor falls outside that. Ask anyone you're comparing to show you their license.
Straight answers about the unknowns
If I can't tell what the subgrade looks like until the old slab is out, I'll say so and explain what it could change rather than guess. Our work is backed by our satisfaction guarantee.
If your floor is cracking or sinking, send us a message or call (805) 261-5009 and I'll come take a look.
Garage floors, permits and slab work in Simi Valley
Plan the permit before anything gets scheduled. The City of Simi Valley issues construction permits, and many of them can be applied for online. Whether your garage floor needs one isn't something I'll guess at, so before work starts we tell you which office handles it, and we can pull the permit as your contractor or help you pull it yourself. If you'd like to ask the city directly, the Building & Safety front counter is at (805) 583-6723.
A lot of the garages we work on are attached to the house, so the new floor has to meet the step at the house door and the driveway without a lip, and water has to run out, not in. We're based in Simi Valley and take jobs across the cities around it, and we run into the same tight fit on garage jobs in Thousand Oaks and Moorpark.
Questions about garage floor concrete in Simi Valley
Should I resurface or replace my garage floor?
Resurface only if the slab underneath is sound, because an overlay holds up on solid concrete but fails over a slab that moves, cracks that keep opening or poor ground below it. One repair guide says resurfacing the whole floor makes sense when the damage is shallow and spread across most of it. If the trouble runs deeper than the surface, replacement is usually the answer.
How long does a garage floor overlay last compared to a new slab?
One concrete guide expects a properly installed overlay to last about 8 to 15 years and a full replacement about 20 to 30 years. If you plan to stay in the house a long time, that gap is worth weighing when you compare quotes.
How much does a new garage floor slab cost in Simi Valley?
A garage floor slab of 400 to 600 square feet in the Los Angeles area usually costs about $4,000 to $9,000 for the whole job. That's a regional figure, so a Simi Valley quote can land differently once tear-out, base work and any coating are counted. Your written estimate gives you the figure for your own floor.
How soon can I put epoxy on a new garage floor?
One coating maker's epoxy instructions ask for 28 days on new concrete before it's coated, so a replaced floor usually sits bare for about a month. Follow the instructions for the coating you pick, since that maker sets the wait.
What causes epoxy to peel off a garage floor?
Moisture coming up from the ground is a common cause, and one guide names a missing vapor barrier, a layer under the slab that blocks that moisture, as the biggest reason garage coatings peel. Many garage slabs sit without one, so it's worth knowing before you spend money on a coating.
How do I tell if a crack in my garage floor is serious?
Lay a straightedge across the crack and see whether one side sits higher than the other, which is the check one repair guide suggests. If it does, the slab has moved, and lifting or replacing it is the conversation to have, not a repair kit.
Related services for your garage and yard
When a plain gray floor isn't the look you want, color, scoring or a polished finish can make a garage feel more like part of the house.
If a hillside behind or beside your garage is pressing on the walls or sending mud and water inside, a wall built to hold that ground comes first.
Cities we work in around Simi Valley
Custom Simi Valley Concrete is based in Simi Valley, CA, and takes garage floor jobs across the cities around it, including Camarillo and Agoura Hills. The 12 cities below each have their own page, and if yours isn't listed, ask us.
Simi Valley, CA
Send us your garage floor size and photos
A few photos of the worst cracks let me ask better questions before I come out, so the visit goes straight to what matters.