Concrete Floor Installation in Redwood City CA - a slab that's ready for your flooring
Building an addition or replacing a cracked, uneven slab? We prep the base, then pour and finish a solid floor for whatever goes on top.
- Licensed and fully insured.
- Free quotes on site.
- Replies within 1 business day.
What goes into a new concrete floor in Redwood City?
Concrete floor installation in Redwood City means getting the ground ready, laying a vapor barrier, then pouring, finishing, jointing and curing a slab that either takes your finish flooring or serves as the floor itself. The longest part is usually the wait while the slab dries before flooring goes down.
Most people who call about a floor are building something, like an addition, a shop or a garage floor, or they're replacing a tired slab, and what they want to know is when the flooring installer can come in. The price mostly moves with the size of the floor, whether it needs steel in it, how much digging and base work the ground needs and how easily we can get concrete to the spot. When budgets get tight, people want to cut the base because nobody sees it on day one, and I'd cut a fancy finish first every time, because a nice surface on a bad base is just a nicer-looking crack. The schedule turns on the cure and on how long the slab takes to dry for your flooring, and the written estimate puts a figure on your floor.
How do you know it's time for a new concrete floor?
Cracks with a high side
If a crack has one edge sitting higher than the other, or the floor rocks a table, the base under it has usually settled. New flooring laid over it will show those cracks again, so it's worth fixing the slab first.
Flooring lifting or bubbling
Tile popping loose, vinyl bubbling or a musty smell under the rug usually means moisture is coming up through the slab, often because there's no barrier under it or it's torn. Putting new flooring on top without dealing with that just means paying for flooring twice.
A new room with no floor
An addition, a garage conversion or a backyard unit needs a slab planned before the rest of the schedule gets locked in. Leave it to the last minute and the floor gets rushed, and concrete doesn't like being rushed.
How we handle concrete floor installation
We start below the concrete. We dig out and check the subgrade, which is the ground the slab sits on, then pack a base over it so the floor doesn't settle with the dirt. Then we lay the vapor barrier, a heavy sheet that keeps ground moisture from rising into the slab, and we walk it for tears before the pour, because a hole you find afterward stays there for good. If the floor calls for rebar, steel bars that stiffen the slab and hold it together, we set it up off the ground so it ends up inside the concrete and not lying underneath it. Then we pour, finish the surface, cut control joints, which are shallow grooves that give the slab a place to crack where we chose, and let it cure, the slow stretch where concrete gains its strength. Finishing, jointing and curing run on the concrete's clock, not ours, so we plan the pour to stay out of midday heat that leaves a weak, dusty top. When it's done, I'll tell you to hold off on finish flooring until the slab is dry enough to take it, and I'll tell you now that a floor with no cracks at all isn't realistic.
The work around a new floor often goes to the same crew. If the room opens onto the yard with a drop at the door, we build concrete steps so nobody steps off a ledge, and if the floor runs out toward the pool, concrete pool decks get the same attention to the base.
A slab for finish flooring
This suits rooms where tile, wood or vinyl goes on top, so we finish it smooth and flat for the installer. The surface won't be on show, so the work goes into a flat slab and a dry one.
Concrete as the finished floor
This suits shops, garages and spaces where you'll walk on the concrete itself, so the troweling and sealing matter more because there's nothing on top to hide them. It's a good fit when you want a tough floor you can hose off.
A slab with rebar
This suits floors that carry real weight, like vehicles, heavy shelving or equipment, because the steel helps keep the slab in one piece if it cracks. I'll tell you at the estimate whether yours needs it, and I won't add it just to raise the price.
Get a free on-site estimate for your concrete floor
Send the form and you'll hear back from me within one business day. I'll set a time to come out, look the job over and write up a free estimate, with no obligation to go ahead.
(650) 587-4028- Based in
- Redwood City, CA 94063
- Hours
- Mon–Fri: 7 AM–11 PM, Sat–Sun: 6 AM–10 PM
What happens after you call about a concrete floor?
Here's how a floor job runs from your first call to the final walk-through, and who you'll be dealing with at each step.
- +01
Tell me about the floor
Call or send the form and tell me what the floor's for, whether that's an addition, a shop or a garage. That decides how thick and how strong it needs to be.
- +02
I look the job over
I come out, look at the ground and how we'll get concrete in, ask a lot of questions and write up the estimate. It lays out what's included and what's driving the price, so you're comparing apples to apples.
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Our crew pours the floor
Our own crew does the prep, the barrier check, the pour and the finishing, and I check the work as it goes. We'll tell you ahead of time when to keep the area clear.
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We walk it with you
When it's finished, we walk the floor with you. We go over when it can take foot traffic and when your flooring can go down.
Why Redwood City homeowners call us for concrete floors
Tell me what the floor is for and where it's going, and I'll come take a look. Get in touch or call (650) 587-4028.
I come out, our crew pours
I look at every job myself, and our own crew does the work. The person who heard what you need is the same one checking the floor as it goes in.
Our own business since 2013
We've been at this for 13 years, and before that I ran crews and pours for another contractor. A slab doesn't have many ways to surprise me anymore, though it still tries.
Covered before we start digging
We're licensed and fully insured. Our work is backed by our satisfaction guarantee.
Based right here in Redwood City
Most of our calls come from homeowners in Redwood City and the cities around it, plus builders who've used us before. That's why I'd rather tell you no than sell you a floor you don't need.
Permits, hazard zones and concrete floors in Redwood City
Whether your floor needs a permit depends on the job, so I'll tell you at the estimate, and if it does, we handle the paperwork with your city or the county. In Redwood City, permits go through the city's Building Department, which sets up accounts for contractors who hold a valid Redwood City business license. It's also worth putting your address into the state's EQ Zapp map, which shows whether a property sits in a mapped earthquake hazard zone, because inside a state seismic hazard zone the permit process may call for the hazard to be looked into and reduced before work goes ahead.
A lot of the floors we pour around here go into additions, garage conversions and backyard units on older lots, where getting the concrete to the spot is half the planning. We're based in Redwood City and work up and down the Peninsula and into the South Bay, and we see the same kinds of jobs in San Carlos and Menlo Park.
Questions about concrete floors in Redwood City
How much does a concrete floor cost in Redwood City?
Putting in a concrete slab in the Bay Area usually costs about $9 to $18 per square foot, and that's the going rate around here, not a quote from us. Reinforced slabs cost more per square foot than plain concrete pads, so your floor's design moves where you land in that range. The estimate gives you the figure for your floor.
How long does a new concrete floor take to cure before I can walk on it?
A new slab should be walkable within 48 hours, but it takes 28 to 30 days to fully cure. To be safe, many owners wait a week before heavier loads go on it, so you can walk through long before the room is in full use.
How do I know when new concrete is dry enough for flooring?
It's ready when the moisture inside the slab has dropped to an acceptable level for the coating or flooring going on it. Put flooring down too soon and the moisture under it can cause discoloration, buckling, blistering, failed adhesive or mold, so plan for the finish floor to follow the slab, not chase it.
Will my new concrete floor crack?
It may, and that's normal. Concrete floor guidance says that even with the best design and proper construction, a completely crack-free and curl-free floor isn't realistic, curl being the slab's edges lifting slightly as it dries. The control joints we cut give the cracks that do show up a straight line to follow.
What does a vapor barrier under a concrete floor do?
Its main job is to stop water vapor from moving up out of the ground into the slab, which one barrier maker says protects floor finishes and helps prevent mold. Installation guidance calls for marking torn or badly laid spots well before the concrete goes in so they get fixed first, so it's fair to ask any crew who checks it before the pour.
Does a contractor need a license for a small concrete job in California?
Often, yes, even for small jobs. California's Contractors State License Board licenses home improvement contractors, and a project under $1,000 still requires a license when the work is subject to a permit of any kind or the contractor hires workers. Ask for the license before anyone starts digging.
Other concrete work around a new floor
A pool deck takes splashing, bare feet and wet chairs, so it needs a slip-resistant surface and a slope that sends water away from the pool.
When a new floor sits higher or lower than the yard, solid concrete steps at the door make the drop safe and keep water from running in.
Cities we serve for concrete floors
Elite Redwood City Concrete is based in Redwood City, California, and pours floors in the cities around it, including San Mateo and Palo Alto. The 12 cities below have their own page, and they're not the only places we work.
Get a price on your concrete floor
Call (650) 587-4028 or send the form with the floor's rough square footage and the property address, so I show up with a good idea of the job already in hand.
Redwood City, CA