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United Irvine Concrete
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(949) 518-3401

Slab foundation building in Irvine CA - a solid base built for the soil underneath

Planning a home or addition and unsure what the ground needs? We form and pour a slab built to your plans and your soil.

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(949) 518-3401Request an estimate
Broad stamped concrete steps and walkways lead through a landscaped lawn to a house.

What goes into building a slab foundation in Irvine?

Slab foundation building in Irvine means forming, pouring and finishing a concrete base right on the ground, so your new home or addition has a solid, even floor to sit on from the start.

Most people who call us about a slab are planning an addition or a new home, and many of the big decisions are already in the plans. The price moves with the size of the slab, the design the engineer calls for, the soil work underneath and how easily a truck and crew can reach the spot. The schedule usually turns on plans and approvals more than on the pour itself. A slab is one kind of foundation, and our foundation installation work covers the others.

For work in Irvine, the City of Irvine's permit application calls for structural plans that include a foundation plan and details, so the drawings and the slab we pour have to match. When your job needs a permit, we prepare and file it and keep you posted on where it stands.

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What happens after you call us about a slab foundation in Irvine?

  1. Call or send us a message

    You call (949) 518-3401 or fill out the form, and we get back to you to set a time for me to come out. Let us know whether it's a new home, an addition or another kind of slab.

  2. I look over your site

    I take measurements, check how the truck and crew will reach the spot, and ask how you'll use the slab. You get a written estimate that shows exactly what's included.

  3. We prepare the ground and forms

    Our own crew digs out and packs the subgrade, the ground the slab sits on, then sets the forms and steel to the plans. Either I or my foreman runs the job on site the whole way through.

  4. We pour and walk it together

    We pour, finish and clean up after ourselves. Before we leave, I walk the finished slab with you so you can see what you're getting and ask anything you like.

How a slab foundation in Irvine gets built right

We build the slab from the engineer's plans and the soil report when there is one, because the ground decides which slab will hold. On soils that swell when wet and shrink as they dry, the trade group for post-tensioning says slabs with steel cables tightened after the pour are a cost-efficient, high-performance choice. Before the pour we check the vapor retarder, the plastic sheet under the concrete, so any damage gets fixed first.

Building in Irvine adds a few layers, and each one leads back to the soil report. The county has noted expansive soil in some areas, and state-mapped earthquake hazard zones call for geologic and engineering studies that can catch ground failure risks before anything is built. The city also says your HOA will likely have its own approval process. We work across Orange County and will give you the drawings and details your HOA needs.

What our slab foundation work covers:

  • Digging out and packing the subgrade
  • Forms and steel set to plans
  • Vapor retarder checked before pouring
  • Pour, finish and cleanup

Reusing an old slab or building a new slab foundation

Homeowners planning an addition often ask whether the old patio slab can carry it, and usually it can't, because a patio is flatwork, the thinner outdoor concrete we pour for walks and driveways, not a foundation built to hold walls and a roof. Cracks in an existing slab can sometimes be patched, but whether it can bear a building is the engineer's call. I'd sooner tell you plainly that it has to come out than build on something that won't hold.

Where your slab foundation budget should go

Digging out soft ground and packing the base under a slab cost money nobody sees on day one, so it's the first place a tight budget looks to trim. I won't trim it, because a nice top on a poorly packed base settles with the dirt, and fixing that costs far more than it saved. It's the same base work we do under every concrete parking lot we build. Where your plans leave room, the surface finish is the better place to save, since flooring usually covers it.

United Irvine Concrete keeps its word

I learned concrete under a strict, old-school boss who made me tear out forms and set them again until they were right. I started United Irvine Concrete in 2013 and have run it that same careful way since, with quotes that say plainly what you're paying for and work that matches them.

On your property, we do exactly what we said we'd do and leave it as tidy as we found it. If something under the slab isn't right, I'll tell you before we pour, sir or ma'am, not after. Satisfaction guaranteed on every job.

Call about your slab foundation today

Call with your address and any plans, soil report or HOA approval, and I'll know what to look at when I come out.

(949) 518-3401

Get a written estimate for your slab foundation

Give us your address, the project and any plans or soil report you have. We reply within one business day to book my visit, and the written estimate is free with no obligation.

(949) 518-3401

Slab foundation questions from Irvine homeowners

How much does a concrete slab foundation cost in Orange County?

A reinforced concrete slab in Orange County usually costs about $8 to $14 per square foot, and that's the going rate for the slab itself, not our price. Where your job lands depends on the engineer's design, the soil work and the site. Your own figure comes from the written estimate I give after looking at the site and the plans.

What does a soil report cover for a slab foundation in Irvine?

A soil report maps the engineer's test borings and describes the soil found, and when the city calls for one, a qualified civil or geotechnical engineer prepares and signs it. It also recommends the foundation type and design, including steps to limit the effects of expansive soil. We build to it, so it shapes your slab from the start.

How long does a new concrete slab take to cure before I can walk on it?

A slab should be walkable within 48 hours, though concrete takes a month to fully cure. Curing is the time the concrete needs to gain its strength, so waiting a week before heavier loads may be safer, and it's worth building that wait into your schedule.

Who is allowed to pour a slab foundation in California?

A contractor licensed by the state licensing board should pour it, since the board's concrete class covers forming, pouring, placing, finishing and installing concrete. Minor work needs no license only when the whole contract, labor and materials included, is under $500, and that exemption ends when the small job is part of a larger project. We're licensed and insured.

What causes a slab foundation to move or crack?

Slab-on-ground foundations can move throughout their whole life, and the ground underneath is usually the reason, from soil that swells and shrinks with moisture to a base that was raked level instead of dug out and packed. That's why we build from the soil report and the engineer's design and won't skimp on the base. We also plan pours around the midday heat, which can leave a weak, dusty top.

How much can a contractor ask for up front on a home improvement job in California?

State law caps the down payment on a home improvement contract at $1,000 or ten percent of the contract price, whichever is less, not counting finance charges. Our written estimate shows what's included, so you can see what you're paying for before any work starts.

Slab foundations in Irvine and nearby cities

We're based in Irvine and build slab foundations in the cities around it, including Tustin and Costa Mesa. Choose your city below, or call (949) 518-3401 if yours isn't listed.

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