Foundation installation in Riverside CA - a base built for the soil under your house
Building a home or addition and worried the ground will shift? We start from a soil study and pour a foundation that fits your lot.

- Licensed and insured.
- Free estimates at your property.
- Replies within 1 business day.
What goes into a new foundation for a house in Riverside?
Foundation installation in Riverside means building the concrete base your house sits on, most often a reinforced slab poured on ground that's been dug out and packed. It's worth getting right, because it's the one part of the house you can't easily redo later.
Most people who call about a foundation are building a new home or an addition, and the big worry is whether the ground underneath will stay put. The price moves with the size of the footprint, the slab type your soil study points to and how much dirt has to move. The schedule mostly turns on getting that study and the permits in hand before anyone digs. I'll put your figure in a written estimate after I see the lot. We're based in Riverside and work in many of the cities around it in Riverside and San Bernardino counties. If your house is already standing and has settled, that's foundation raising, which is a different job.
How we handle foundation installation
On a new foundation we start from an engineer's soil study, because that's what tells us which system fits your lot, and I lay out the cheaper and sturdier options honestly so you can weigh the price against the risk. Once the plan is set, our crew digs out and packs the subgrade, the soil the slab rests on, since a base that's only raked level settles along with the dirt under it. We grade so water runs away from the house, set the forms and place the steel the plan calls for. When it's hot we pour early in the day, because a slab that bakes at midday can end up with a weak, dusty top. The base is the part people want to trim first, since nobody sees it after the pour, but everything above rests on it, so it's the last place I'd cut. Concrete can still crack a little as it dries, and I'd rather you hear that from me now than be surprised later.
Some projects call for concrete footings instead of a full slab, and the ground under those gets the same attention. For property owners putting up a building with parking beside it, concrete parking lot building uses the same dig-out-and-pack approach across a bigger area.
Rebar-reinforced slab
This suits lots where the soil study shows fairly stable ground and owners keeping a close eye on the budget. Rebar, the steel bars tied in a grid inside the concrete, holds the slab together and helps keep cracks from opening wide.
Post-tensioned slab
This suits lots the soil study flags for movement, where the extra cost buys a stiffer slab. Steel cables run through the concrete and get pulled tight once it hardens, which squeezes the slab so it moves with the ground as one piece.
Call while your house plans are still taking shape, because the soil study and permits set the start date. We reply within one business day.
What happens after you call us about a new foundation?
I handle the estimate myself and run our crew on the job, so the person who walks your lot is the same one who answers your questions through the pour.
Call or send the form
Reach us at (951) 589-3080 or through the form, and we'll set a time for me to come see the lot. It helps to have the address, the size of the home and any soil report on hand.
I walk the lot with you
I look at the site, ask how you'll use the building and leave a written estimate that spells out what's in it. You'll see the slab type and the prep listed plainly, so you can weigh the cheaper option against the sturdier one.
We settle permits and prep
Once you say go, we settle the permit question with the city, then dig out, pack the ground and set the forms. The pour waits until the base and the steel match the plan.
We pour, cure and walk it
Our crew places the concrete and lets it cure, which is the wait while it hardens and gains strength before anyone builds on it. Then I walk the finished slab with you.
Get a written estimate for your new foundation
Send the form and we'll reply within one business day to set a time, and I'll come out myself. The estimate is free, done at your property, and there's no obligation to go ahead.
(951) 589-3080Foundation installation permits and rules in Riverside
Riverside's building official issues permits for most construction, and the short list of work the city lets go without one names things like small sheds and low retaining walls, not foundations. So before we start, we check with the city what your job needs, and when a permit is needed we pull it ourselves or help you apply, since many permits can go to the owner, an agent or a licensed contractor. A contractor pulling a Riverside permit shows a license the state licensing board can check, along with a current City of Riverside business license, and we're licensed and insured.
A foundation moves a lot of dirt, and a job that disturbs more than 50 cubic yards of soil needs a grading permit from the city's Public Works Department, usually with plans from a licensed civil engineer, so we build that into the schedule early. The city also warns that work done without permits can lose much of its value and may not be covered by insurance. Lots change a lot from one street to the next, and we see the same soil and grading questions on jobs in Moreno Valley and Corona.
Foundation installation questions from Riverside homeowners
How much does a new foundation cost in Riverside, CA?
A slab foundation in Riverside usually costs about $6 to $16 per square foot installed. Where yours lands depends on the footprint, the slab type your soil study calls for and how much grading the lot needs. I'll give you your own figure in a written estimate after I see the site.
Do I need a permit to put in a foundation in Riverside?
Plan on it, since foundations aren't on the city's short list of work that can skip a permit, and bigger digs can need a grading permit as well. The permit section above covers who issues what, and we settle it before we dig.
Should I choose a post-tensioned or rebar slab for my house?
On ground that moves, a post-tensioned slab usually holds up better, because the squeeze in the concrete resists soil movement. That means fewer cracks, and the ones that form stay tight, which helps keep out the insects and water that can ruin flooring and cause mold. It can often go in faster too, but a rebar slab is safer to cut openings through later, so it's worth a look if you expect to remodel.
Do I need a soil study before building a foundation?
Yes, and that's where we start on every new foundation, because on clay that swells, the choice of system should rest on a soil study by an engineer. Plan for it before you settle on a slab type or its details, since the results can change both.
What causes a house foundation to crack or heave?
Most often it's the ground moving under it. Clay soil swells and pushes up as it gets wetter, then dries out and sinks as the moisture drops, and a slab sitting on it rides those changes. A soil study tells you how much your lot is likely to move before you pick a foundation.
How do I choose between a cheaper and a sturdier foundation?
Weigh the price against what your soil study shows, because on expansive soil the cheaper systems usually carry more risk. Shallow foundations cost less than deep ones and often get picked for price. On clay that moves, though, the savings up front can cost you later in repairs.
Related concrete work for your project
When the project is a deck, porch, garden wall or addition rather than a whole house, footings carry the weight down to firm ground without a full slab.
If you own a small commercial or rental property, a new building often needs parking beside it, and we can pour that lot on the same well-prepared ground.
Talk to us about your new foundation
Call (951) 589-3080 or email hi@concreteriversideca.com, and we can sort out early what your lot still needs before a price makes sense.
