Slab foundation building in Riverside CA - a solid, level base poured to your plans

Building a new home or addition and need a slab? We pour it to your plans, with the base, moisture layer and steel set right.

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  • Licensed and fully insured.
  • Free in-person estimates.
  • Expect a reply within 1 business day.

Problems a new slab foundation solves

A slab problem rarely stays put, because water and settling keep working on a weak base. Catching it early usually means a simpler job and less damage to the floors above.

  • Cracks that keep growing

    Cracks that widen across an old slab usually mean the base was raked level instead of dug out and packed. A new slab starts on firm, packed ground.

  • Floors that slope or sink

    Doors that stick and floors that tilt can mean the ground under the slab has settled. We prepare the subgrade, the soil the slab rests on, so it holds steady.

  • Damp floors indoors

    Musty smells, damp spots or flooring that lifts can come from water vapor rising through the slab. We check that a moisture layer under indoor floors is in your plans.

  • Water against the house

    Water that pools along the walls after rain usually means the slab or the ground around it falls the wrong way. We set the grade so water runs away from your house.

Fix the old slab or pour a new one?

If the floor is still level and dry, a smaller fix often does the job. When the ground underneath has moved or your plans have changed, a new slab usually serves you better.

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  • A repair is enough when:

    • Cracks are thin and not growing
    • The floor still sits level
    • No damp spots show up inside
    • The edges aren't crumbling
    • Water drains away from the house
  • A new slab makes sense when:

    • You're building new or adding on
    • Cracks keep widening
    • Floors have dropped or tilted
    • Moisture keeps coming through
    • Your plans call for a different slab type

How a slab job goes with us

  1. I visit the site

    I come out myself to look at the ground, the access for trucks and how water moves across the lot, and to hear what you and your design team have planned.

    A site visit

  2. You get it in writing

    You get a written estimate that says plainly what's included and what isn't, so you know exactly what you're agreeing to before any work starts.

    A written estimate

  3. We sort out city steps

    We agree on who applies for what the city requires. Riverside issues some simple permits the same day, but others may need plan review first, so we schedule around it.

    A clear permit plan

  4. Base, steel and pour

    Our lead finisher runs the crew through the base, forms, moisture layer and steel, and I'm on site the day we pour so any question gets answered right there.

    A slab poured to plan

  5. Walk-through and clean-up

    When the work is finished, we walk the slab with you and answer your questions, then clean up the site before we pack up.

    A clean, finished site

What our slab foundation work includes

  1. Reviewing your plans

    We work from your design team's plans on slab type and ask any questions before the pour.

  2. Digging out and packing

    We dig down to firm ground and pack the subgrade, so the slab rests on solid soil, not loose fill.

  3. Grading for drainage

    We set the grade so rainwater runs away from the house instead of pooling at the slab edge.

  4. Forms set to plan

    We set and check the forms so the slab comes out the size, height and shape the plans show.

  5. Moisture layer and steel

    We lay the moisture layer under indoor floors and set the steel the plans call for to hold the slab together.

  6. Pour, finish and cure

    We pour before midday heat can weaken the top, then let the slab cure, the wait while it gains strength.

What shapes the cost of a slab foundation?

The biggest things are the size of the building, how thick the plans call for the slab, and which slab type your design team picks, since a post-tensioned slab and one reinforced with rebar use different amounts of concrete, steel and labor. After that comes the site itself, meaning how much digging and packing the ground needs, whether trucks can reach the pour, and how much grading it takes to move water away.

When budgets get tight, people often want to trim the base work because nobody sees it once the concrete is down. I'd rather keep the base and cut somewhere else, because the ground under a slab decides how it holds up for as long as the house stands. The schedule turns mostly on plan review at the city and the weather around pour day, and your written estimate lays out each part of the job.

Why Riverside owners trust us with their slab

I learned concrete on a city public works crew, pouring to a written spec with an inspector watching, and I started this business in Riverside in 2013 to bring that same care to homes. On a slab foundation that means working from your design team's plans, checking that the moisture layer under indoor floors is in them, and asking about anything unclear before the pour, not after.

I'll also tell you plainly when a different approach or a specialist would serve you better. Some of our calls come from property owners with a building or a lot that needs work, so we also handle foundation installation and concrete parking lot building. Call (951) 631-9520 when you're ready to talk through your plans.

  • Licensed and fully insured
  • The owner on site for the pour
  • Satisfaction guaranteed

Get a written estimate for your slab foundation

Send the property address, the planned building size and any soils report. We reply within one business day, and I come out for a free, no-obligation estimate in writing.

(951) 631-9520

Slab foundation questions we hear

How much does a slab foundation cost in Riverside?

We price each slab after seeing the site, because the building's size, the slab type in your plans and the work the ground needs all move the number. Those are the same factors laid out above. Call (951) 631-9520 and I'll come out and put it in writing.

Do I need a permit for a slab foundation in Riverside?

Plan on it, because the city's building official issues permits for most construction and the city's list of exempt work names small sheds, not slab foundations. Confirm for your project on the city's permits page, where permits can go to the owner, the owner's agent or a licensed contractor, and we'll agree up front on who files. The state sends its hazard maps to cities for planning construction, and the city can set rules stricter than state law, so your plans have to meet Riverside's requirements.

Which slab type is best for my soil in Riverside?

That's your design team's call, based on the soil under your lot, so ask them which type your site needs. One trade group says a post-tensioned slab, which holds the concrete squeezed together, resists shrink-swell soil better than an ordinary slab and often goes in faster than a similar slab with rebar, since there are fewer pieces to handle and less concrete to place. Ask each bidder how the slab type changes their schedule.

What is the best way to keep moisture from coming up through a slab?

A vapor retarder, a sheet that slows water vapor rising from the ground, laid directly under and touching every indoor floor slab, is what the national ready-mixed concrete trade group advises. Check that each bid includes it under all indoor floor areas. We confirm it's in your plans before we pour.

How do I check a concrete contractor's license in California?

Look the contractor up with the California Contractors State Licensing Board, which licenses concrete contractors to form, pour, place and finish concrete. A contractor pulling a Riverside permit also has to show proof of that license and hold a current City of Riverside business license. We're licensed and fully insured, and when we apply, we bring our license paperwork to the counter.

How much can a contractor ask for as a down payment in California?

As of this writing, the state contractor board's guidance caps the down payment on a home improvement contract at $1,000 or ten percent of the price, whichever is less, not counting finance charges. If a bid asks for more up front, ask why before you sign.

Serving Riverside and nearby cities

We're based in Riverside and work in many of the cities around it, including Corona and Moreno Valley. Pick your city below, or call if yours isn't listed.

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Plan your Riverside slab with Riverside Concrete Company

Call (951) 631-9520 while your plans are still being drawn, so questions get answered before plan review.

Call (951) 631-9520Get a quote