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Garage floor concrete in Glendora CA - a floor that holds up under your car

Cracked, sinking or dusty garage floor? We'll tell you honestly whether it needs a repair, a resurface or a new slab, then do it right.

A dark exposed-aggregate concrete walkway and steps lead to a brick house entrance, bordered by grass and river stones.
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  • Free quotes on site.
  • Expect a reply within 1 business day.

Does my garage floor need a repair or a whole new slab?

Garage floor concrete work in Glendora means either repairing the floor you have, by filling cracks, lifting a sunken section or resurfacing a worn top, or breaking it out and pouring a new slab, and the right choice depends on whether the concrete underneath is still sound. A repair is usually the shorter job, while a new slab means a curing wait before the car goes back in.

Most calls I get start with a crack that has grown, a corner that has dropped or a floor that has gone dusty, and the homeowner wants to know if the whole thing has to go. The price mostly moves with the size of the garage, whether the old floor has to be broken out and hauled away, how much digging and packing the ground needs, and how easy it is to bring a crew and equipment to the garage. The schedule turns on which fix the floor needs and on the curing wait after a new pour, and I'll give you your own figure in a written estimate that lists what's included.

How can you tell your garage floor needs attention?

Cracks that keep getting wider

If a crack you noticed last year is wider now or has new branches, the floor is still moving. Left alone, it lets water under the slab, which softens the ground and makes the next repair a bigger one.

One side higher than the other

When one edge of a crack sits above the other, you'll catch a toe or a tire on it. It usually means the ground has dropped under part of the slab, and that section tends to keep sinking until the cause is dealt with.

A dusty, flaking surface

A top that sheds powder or flakes away under tires is often a weak surface left from the original pour. On its own it's mostly a wear problem, but if you wait, the pits grow and start holding oil and water.

Water pooling inside the garage

Puddles that sit near the back wall or along a crack mean the floor no longer slopes toward the door. Standing water works its way into cracks and under the slab, so a small slope problem turns into a base problem.

How we handle garage floor concrete

I start by looking at the floor and telling you honestly whether it needs a crack repair, a resurface or a new slab, because a new top layer won't help concrete that's still moving and I'd rather say so up front. For a new slab, our crew breaks out the old concrete and hauls it off, then digs out and packs the subgrade, which is the soil and gravel the slab sits on, and checks that the finished floor will fall toward the door so water runs out instead of toward the back wall. We set rebar, the steel inside the slab that holds it together, pour early in the day so the heat doesn't leave a weak, dusty top, and cut control joints, shallow grooves that give the slab a planned place to crack, before it has a chance to crack on its own. Then the slab cures, which is the slow hardening that gives concrete its strength, and we ask you to keep off it until it's ready. If the budget is tight, I'll always suggest spending it on the base rather than the finish, because nobody sees the base once the pour is done, yet a nice surface over loose dirt cracks just the same.

Garage work often ties into other jobs around the house. If you'd like color, a pattern or a smoother look on the floor or the apron outside it, our decorative concrete work covers that, and when the garage backs up to a slope that pushes soil toward the slab, concrete retaining walls can hold that ground back.

  • Crack filling for stable cracks

    Filling suits a crack that has stayed put, because it keeps water and grit out of it. It won't steady ground that's still moving, so we don't offer it as a fix for a floor that's shifting.

  • Resurfacing a worn top

    This suits a floor that's dusty, pitted or stained but still solid underneath. It gives you a fresh surface without the cost of breaking out the slab.

  • A new reinforced slab

    This suits a floor that's sinking, broken up or cracked through in several places. We break out the old concrete and start again from the ground up.

Get a written garage floor estimate, free and on site

We reply within one business day and set a time for me to come out to your house, and there's no obligation. I'll look at the floor, the ground under it and the drainage, then give you a written estimate that lists what's included.

(626) 513-4658

What a sound garage floor concrete quote includes in Glendora

Please ask who will actually do the concrete. In California, a concrete contractor is the trade licensed to form, pour, place and finish flat concrete like a garage floor. If you hire a general builder for the concrete alone, the state licensing board lets them take that job directly only if they hold the concrete license themselves or bring in a properly licensed concrete contractor, so it's fair to ask which one applies to your job.

Thickness is the other thing to check. Around Los Angeles, garage slabs are poured toward the thicker end of the usual range for home floors, since they carry cars, so a quote here should call for more than a room floor would. We see the same worn and cracked garage floors on jobs in Azusa and San Dimas, and we plan the slab the same way there.

What happens when you call about your garage floor

  1. Call or send the form

    We get back to you and set a time for me to come out. Please mention anything that has changed lately, such as a crack that has grown or a corner that has dropped.

  2. I look at the floor

    I check the cracks, the ground, the drainage and how we'll reach the garage, and I answer your questions. Your written estimate lists each part of the work, so you can see what you're paying for before you decide.

  3. Our crew preps and pours

    If you'd like to go ahead, we handle any permit the job needs, and I'll tell you at the estimate if I expect one. Our crew does the prep and the pour with me on site.

  4. Walk the finished floor together

    When the work is done, we walk the floor with you and go over how to care for it while it cures. That includes when it's ready for foot traffic and when it's ready for the car.

Frequently asked questions

Can a worn garage floor be resurfaced instead of replaced?

Yes, a worn garage floor can be resurfaced when the concrete underneath is sound and stable. If the slab under that worn top is moving or breaking up, a new surface layer won't hold, and you're usually looking at a deeper repair or a new slab. I'll tell you which one I see when I come out.

Which cracks in a garage floor need a closer look?

A crack needs a closer look when it keeps growing, one side sits higher than the other, water gets into it, or nearby walls, doors or windows start to change too. Any of those means the floor should be checked before you pick a repair. A level crack that stays the same may only need watching, so it helps to note any change over time before you call.

How long does it take before I can park in my garage after a new slab is poured?

A new slab should be walkable within 48 hours, but waiting a week before you drive or park on it is the safe choice. Concrete keeps curing for about a month, 28 to 30 days, before it's fully cured, so plan on keeping the garage out of heavy use for that first week.

How much does a new garage floor slab cost in the Los Angeles area?

A reinforced concrete garage floor slab in the Los Angeles area usually costs about $8 to $15 per square foot. Where your floor falls depends mostly on how much of the old floor has to come out and how much base work the ground needs. Our written estimate lists what's included, so you can compare it fairly with other quotes.

Can a sunken section of garage floor be lifted instead of replaced?

Lifting can correct some height differences in a garage floor, but it won't stop ground that's still eroding or moving underneath. If the soil keeps shifting, a lifted section can settle again, so I look for the cause before I recommend lifting over a new slab.

What causes a garage floor to crack?

Most garage floor cracks start with the ground under the slab, usually a base that was raked level instead of dug out and packed, so it settles with the dirt. Water running under the slab, a pour in the midday heat and control joints cut late or skipped all add to it. A new slab can still crack, but a packed base and joints cut on time help keep cracks small and where they were planned.

Glendora, CA

Tell us about your garage floor

If you send the garage size, a photo of any cracks and a note on what has changed lately, I'll know what to look for before I arrive.

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