Concrete floor installation in Petaluma CA - a solid slab ready for your flooring
Old floor cracked, dusty or uneven? We dig out, pour and cure a new concrete floor that's flat and ready for the flooring you choose.

- Licensed and fully insured.
- Free on-site estimates.
- Replies within 1 business day.
What does it take to put in a concrete floor in Petaluma?
Concrete floor installation in Petaluma means our crew lays a new slab, then finishes it, cuts its joints and cures it so the surface holds up to everyday wear and to whatever flooring goes on top. The pour itself is the quick part, and most of the wait is the curing that follows.
Most people call us when an old floor has cracked or gone uneven, or when a new room, shop or garage floor needs a slab under it. The price moves with the floor's size and thickness, whether it needs steel reinforcement and how much old concrete or dirt has to come out first, while the schedule turns on whether the city needs a permit and how long the concrete has to cure before you use the room. I'll come out and give you a written estimate that lists what's included for your floor, and we work from Petaluma across the cities around it in the North Bay.
How do you know your concrete floor needs replacing?
Cracks with raised edges
A crack where one side sits higher than the other usually means the ground under the slab settled or the floor never had joints to crack along. Left alone, it becomes a trip hazard, and any tile or wood laid over it tends to crack right along the same line.
Dust that won't sweep clean
If the surface keeps powdering no matter how often you sweep, the top was usually finished at the wrong time or dried out too fast. It keeps wearing down, and paint, coatings and flooring adhesive won't hold well on it.
Flooring lifting or smelling damp
Wood that cups, tile that loosens or a musty smell under carpet often points to ground moisture coming up through a slab with no barrier, or one in the wrong place. Until the floor underneath is fixed, new flooring on top usually fails the same way.
How we handle concrete floor installation
Before anything else, I ask what flooring will go on top, because that decides where the moisture barrier sits so it protects that flooring best. Then our crew digs out and packs the subgrade, the ground the slab rests on, instead of raking loose dirt level, since a floor settles right along with a soft base. We set the barrier and any rebar the floor calls for, steel bars that hold the slab together if it does crack, and pour early in the day when we can so the top doesn't dry too fast in the heat and turn weak and dusty later. From there I watch the timing closely, because finishing, jointing and curing are where a floor holds up or doesn't, so we trowel the surface when it's ready, cut control joints, shallow grooves that give the slab a planned place to crack, and keep it covered while it cures, the slow hardening that gives concrete its strength. If a budget has to be trimmed, I'd rather give up a fancier finish than skimp on the base, because you can redo a surface but you can't fix what's under a poured floor without tearing it out.
A new floor is often one piece of a bigger job. If the room opens onto the yard, we can pour concrete steps down from the door, and if there's a pool out back, our crew builds concrete pool decks with the same care for the base.
Get a written estimate for your new concrete floor
Send the form and we'll get back to you within one business day to set a time for me to come out. The estimate is free, done on site and comes with no pressure to book.
- support@petalumaconcretecontractor.com
- Based in
- Petaluma, CA 94952
- Hours
- Mon–Fri: 8 AM–10 PM, Sat–Sun: 6 AM–9 PM
What happens when you call about a concrete floor in Petaluma?
Here's how a floor job runs from your first call to the day I walk the finished slab with you.
Call or send the form
Reach us at (707) 283-3110 or through the form and tell us roughly how big the floor is and what it's for. We'll set a time for me to come see it.
I look and write it up
I come out, ask how you'll use the room and what flooring goes on top, then send a written estimate that lists what's included. That list is what you compare against other bids, because it shows whether the base work, barrier and joints are in the number.
We handle the city steps
If your floor needs a permit, we plan our start date around the city's approval. Petaluma issues some permits over the counter or within a few days, but most take a few weeks or even several months, so it helps to start early.
Pour, cure and walk through
Our crew forms, pours and finishes the floor, cuts the joints and lets it cure. I walk the finished job with you before we pack up and tell you when it's ready for use.
Why Petaluma homeowners call Allied Petaluma Concrete for a new floor
Every job is backed by our satisfaction guarantee. Send us a few details or call (707) 283-3110, and I'll come out to look at your floor.
The owner sees every job
I come out myself to look at the floor and write the estimate, and our own crew does the forming, pouring and finishing. You talk to the person who priced the job, and the people pouring it work for us.
In business since 2013
We've been at this since 2013, and I learned the trade on a flatwork crew long before that. It's long enough to have seen what a raked base or a late joint cut does to a floor a few years on.
Licensed for work over $1,000
We're licensed and fully insured. California's state licensing board only lets someone work unlicensed on a job under $1,000 that needs no permit and where they hire no one, so a floor of any real size calls for a licensed contractor.
Concrete floors, flood zones and building rules in Petaluma
If your home sits in one of Petaluma's FP-C floodplain zones, the city requires a new or substantially improved home to set its lowest habitable floor at least 12 inches above the base flood elevation, and that includes basements. On some lots the depth number on the flood insurance rate map sets the mark instead, so I'll ask about your flood zone status before we settle the floor height, because it decides how high the new slab has to sit. Whether or not your floor needs a permit, all work in Petaluma has to meet the California Building Standards Code and the city's own codes, and we build to them either way.
Around Petaluma, a lot of floor calls come from older houses adding a room or turning a garage into living space, where the new slab has to meet an existing floor at the right height. We check those heights and how the new floor ties in before we pour, the same way we do on jobs in Santa Rosa and Novato.
Questions about concrete floors in Petaluma
How much does a concrete floor cost in the Bay Area?
A concrete slab in the Bay Area usually costs about $8 to $16 per square foot, before any staining or stamping. Where your floor lands in that range depends on its size, its thickness, whether it's reinforced and what has to come out first, and my written estimate spells out what's included.
How soon can I walk on a new concrete floor?
A new slab should be walkable within about 48 hours, though concrete takes around a month to fully cure. Waiting a week before heavier loads like furniture, equipment or a car is the safer plan, and we'll tell you when the room can go back into use.
What goes under a concrete slab to keep moisture out?
A vapor barrier, a sheet that blocks moisture coming up from the ground, goes under the slab. An industry guide finds it best protects floor coverings when it sits directly against the concrete, and it says the plain polyethylene sheeting used in the past falls short of the standard for under-slab moisture protection. That's why we ask about your flooring before we set it.
Does Petaluma require a permit for a new concrete floor?
Petaluma doesn't require a permit for most concrete flatwork, the slabs on the ground like patios and floors, but its list names foundations and not floors, so check before you assume yours is exempt. The city does require a permit when flatwork is in the public right-of-way, on an accessible path or supports a permitted structure or equipment, and the Building Division answers specific project questions by email at building@cityofpetaluma.org. When a permit is needed, we help with the application.
What causes a new concrete floor to crack or wear out early?
Poor timing usually does, because an industry guide says getting the finishing, jointing or curing out of step can lead to cracking, dusting, scaling or high and low spots. It also says the crew's schedule for each step is a fair thing to ask before work starts, and I'm glad to walk you through ours.
How do I get ready for a new concrete floor?
Start by knowing the floor's size, the flooring you plan to put on top and whether your lot is in a flood zone, because those three shape the estimate. Before the crew arrives, clear the space and plan where your things will stay until the slab can take weight.
Other concrete work that goes with a new floor
Concrete pool decks
If your new floor opens onto a backyard pool, a deck poured over a well-packed base keeps the ground outside the door as solid as the room inside.
Concrete steps construction
When a new floor sits higher than the yard or driveway, poured concrete steps give you an even, safe climb to the door instead of stacked blocks.
Service areas for concrete floors around Petaluma
Allied Petaluma Concrete is based in Petaluma, CA, and we pour floors in the cities around it across the North Bay. Our 12 service area pages include Rohnert Park and San Rafael, and they aren't the only places we work.
Petaluma, CA
Book a site visit for your floor
If you're comparing bids, a visit lets me see what has to come out before the new floor goes in, which is often the biggest unknown in the price.
