Slab foundation building in Placentia CA - a slab that keeps moisture out of your floors
Adding a room or building on an empty lot? We get the ground, the barrier and the steel right before the concrete goes in.

What goes into building a slab foundation in Placentia?
A slab foundation is a concrete base poured directly on prepared ground. In Placentia, we form, pour and finish it so your house or addition sits on a solid, level floor with the moisture barrier intact underneath.
Most slab calls come from people adding a room, building a garage or starting a house, and from property managers who need a pad for a new building. The price moves with the slab's size and thickness, how much dirt has to come out and get packed back, and the rebar your plans call for. Rebar is the steel bars set inside the concrete. Price also depends on how easy it is to get a concrete truck to the spot. The schedule turns on your plans and the city's review, and when a job needs a permit, we handle the application and book the inspections. If your plans call for deeper footings instead of a slab, that's our foundation installation work, and if you need paving rather than a building pad, look at concrete parking lot building. Your own number comes from a written estimate that spells out what's included for your lot.
Why people hire us for slab foundations
You'll get straight answers, bad news included, and the parts nobody sees after the pour done right. Here's what that looks like on a slab job.
I write your estimate
I come out myself to look at the lot and talk through what's going on top of the slab.
In business since 2013
I ran a landscaping company before this, and seeing cracked concrete in yards is what pulled me into the trade.
A crew lead on site
Our crew lead runs the work with our crew, and I stop by at the steps that matter most.
Fully licensed and insured
Ask about it at the estimate, so you know exactly who's working on your lot before we dig.
Your satisfaction, guaranteed
I tell you what we'll do before we start, and then we do it, because that's what brings people back.
Kinds of slab foundations we build
Your plans, your lot and what's going on top decide which type fits. When the job has an engineer, their design has the final word.
Let's talk about your slab foundation
Call or send the form with your address and any plans you have, and I'll come look at the lot.
Why Placentia homeowners trust Premier Placentia Concrete with slab foundations
The part of a slab that matters most is the part nobody sees after the pour. When a budget gets tight, people want to cut the base first. I'd rather cut almost anything else, because a slab on raked dirt settles with the dirt. We dig out and pack the subgrade, which is the ground the slab sits on, until it's firm.
Before the forms go up, I check where the water runs on your lot, because ground that drains toward the house causes trouble under a slab. On pour day we work around the midday heat, since concrete finished in hot sun can end up with a weak, dusty top. After that it cures, which is the slow hardening that gives a slab its strength.
Slab foundation questions we hear
How much does a concrete slab foundation cost in Orange County?
Reinforced concrete slab work in Orange County usually costs about $8 to $14 per square foot. That's the going rate in the area, not our quote. An unreinforced pad prices a little lower, and plans, engineering and heavy dig-out push a house slab up. Your written estimate spells out what's included for your lot.
Will my new slab foundation crack?
Probably a little, and that's normal. A national slab design guide says some cracking and curling, where the edges lift slightly as the concrete dries, happens on every project, even with good design and proper work. It doesn't mean something went wrong, and I'll tell you at the estimate what to expect on yours.
How do I apply for a building permit in Placentia?
You apply in person at Placentia City Hall, because the city's online permit center is still in beta testing. Planning and zoning clearance comes first. Then the application and plans go to the city for review, and the city's building permit page lists what to bring. The property owner, a licensed contractor or the owner's authorized agent can sign the application.
Which contractor license covers concrete work in California?
The state's concrete contractor license covers forming, pouring, placing and finishing concrete, which is what a slab foundation is. A general building contractor can take on your concrete work if they hold that license or hire a licensed concrete contractor to do it, so it's fair to ask which license covers your slab.
Do I need an engineer for a slab foundation in Placentia?
If your project needs plans, Placentia requires them to be stamped and signed by a California licensed architect or engineer. Structural calculations need a California licensed engineer's stamp. If your lot sits inside a state earthquake hazard zone, a geologic and engineering investigation comes before construction to find and reduce ground hazards.
What causes moisture to come up through a concrete slab?
Moisture can come up through a slab when the vapor barrier is torn or punctured. That barrier is the plastic sheet laid under the concrete, and one barrier maker points to foot traffic during construction as a way it gets damaged. Even small holes let much more moisture through, which can ruin flooring and hold up the job, so we keep traffic off the barrier while we build.
What happens when you call about a slab in Placentia?
Every slab is planned around what you're building and how you'll use it, so the first steps are listening and looking before anything gets priced.
You get in touch
Call (657) 226-2480 or send the form with what you're building and where, and we'll set a time for me to come out.
I look at the lot
I walk the spot, check where the water goes and ask how you'll use the space once it's built.
Your written estimate
You get the estimate in writing with everything that's included. If the job needs plans or a permit, we sort that out before we schedule.
The pour and walkthrough
We book the inspections, which the city schedules Monday through Thursday and never same-day. Then we pour, walk the slab with you and tell you how to treat it.
Building a slab foundation in Placentia and nearby
Placentia's Building Division reviews permit plans. Its list names room additions and remodels but not slabs, so we ask the city before we price yours. We also build in Fullerton, Yorba Linda, the other cities below and ones nearby.
Get a slab estimate in Placentia
Email quotes@concreteplacentia.com or call (657) 226-2480 with your address and any plans, so I can look them over before I come out.
