Foundation installation in Sunnyvale CA - slab or raised, picked for your plans
You've got plans and a soils report and a choice to make. We'll help you pick slab or raised and build it right.
- Licensed and insured.
- Free in-person estimates.
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Should my new house sit on a slab or a raised foundation?
Foundation installation in Sunnyvale means building the concrete your house stands on, either a slab poured right on the ground or a raised foundation that lifts your floors over a crawlspace, and at Vertex Sunnyvale Concrete we help you choose the type that fits before we build it.
You're probably holding drawings for a new house, a rebuild or an addition, and the foundation line still has a question mark next to it. The price mostly moves with which type you pick, how big the footprint is and what your plans and soils report call for, and the schedule turns on the city's plan review and on having those documents ready. Your own figure comes in the written estimate, and the choice between types is what we spend most of that visit on.
How do you know it's time to plan your foundation?
Drawings for a new house
You've got plans for a new home or a rebuild, and nobody has settled whether it sits on a slab or a raised floor. Leave that open too long and the rest of the design waits on it, because floor height, plumbing runs and walls all hang off that one choice.
An addition off the house
An addition needs a foundation of its own, and the new floor usually has to line up with the floor it's joining. When that gets worked out late, it can mean redrawing and sending the plans back to the city.
Remodels you already see coming
Maybe you already know a kitchen or bath redo is coming in a few years. Say so before the foundation goes in, because what's under the floor is hard to change once a house is framed on top of it.
How we handle foundation installation
Slab or raised, the choice comes down to your budget, your plans for future remodels and what your soils report says, so that's where we start. I go through your building plans and the soils report with you, ask how long you plan to stay and what you might change later, and we settle on the type together before anything gets priced. From there we build to your approved plans, and I'd rather explain every choice twice than leave you wondering what's going under your house.
Not every project needs a whole foundation. If the drawings show a deck, a porch or a small add-on, concrete footings may be all you need, and for shop or rental owners who need room for cars, we also take on concrete parking lot building.
Slab-on-grade foundation
A slab is one continuous pour of concrete right on the ground, and one engineering firm's guide calls it highly economical and fast to pour on flat ground. It's the type to price first when budget and speed matter most to you.
Raised foundation over a crawlspace
A raised foundation sets your floor on a stem wall, a short concrete wall around the edge, that rests on footings, with concrete piers under the inside framing. The same guide says the crawlspace keeps plumbing, electrical and mechanical lines fully reachable, so it suits owners who expect to remodel or make repairs later.
Get a written foundation estimate for your Sunnyvale lot
Send the form and we'll get back to you within one business day to set a time. I come out, look at the site and your plans, and you get a free written estimate with no obligation.
- Based in
- Sunnyvale, CA 94087
- Hours
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 7 AM–11 PM
What happens after you call us about a foundation?
Here's how a foundation job goes from your first call to the final walk-through, and who you'll be dealing with at each step.
Call or send a message
Call (669) 348-0343 or use the form and tell us what you're building. We'll find a time for me to come out to the lot.
Walk the site together
I look at the site, ask how you'll use the house and talk through slab versus raised with you. You get a written estimate that lays out the type we'd build and what it covers, so you know the number before you commit to anything.
Check permits, then schedule
We check what the city asks for before anything goes on the schedule. That way nothing starts ahead of the paperwork.
Build it and walk it
Our crew does the work with me checking in along the way. When it's done, we walk the finished foundation with you and go over anything you should know before the next trade starts.
Why Sunnyvale homeowners call Vertex Sunnyvale Concrete for foundations
Licensed and insured for your job
We're licensed and insured. That's worth checking with any crew you talk to, because California requires a state license for anyone who builds or alters a structure on a job that needs a building permit.
I write your estimate myself
I come out myself to look at your site and write the estimate, and our own crew does the work with me on site checking it as it goes. The person who told you what we'd build is the one watching it get built.
Learned the trade on a city crew
I learned concrete on a city crew, fixing what tree roots and time had broken, and started this business in Sunnyvale in 2013. Thirteen years on, I still think a slab is only as good as what's under it, and on a foundation that's the whole job.
The biggest decisions on a foundation get made before the first truck shows up, so send us your project details or call (669) 348-0343 and I'll come out to talk it through.
Building foundations and footings in Sunnyvale
In Sunnyvale, the city's One-Stop Permit Center at City Hall reviews building plans, and its staff will explain the process to follow, the documents you need and whether your project will need plan review. We don't guess at that part. Before we schedule anything, we check with the city on what your project needs, and if it calls for a permit, we pull it, handle the paperwork and meet the inspector on site.
Sunnyvale is among the cities on basin land, where the ground slopes 0 to 2 percent, which is part of why slabs come up so often when we talk through a new house here. Flat doesn't tell us what's underneath, though, so we ask for the soils report up front, the same way we do on jobs in Santa Clara and Mountain View.
Questions about foundations in Sunnyvale
Which foundation type is best for my house in Sunnyvale, slab or raised?
The engineering guide we follow on this says the right type comes down to three things: your budget, your architectural goals and the expansion index, a figure in your soils report that tells how much your ground swells and shrinks with moisture. A slab is the one to price first when budget leads, and a raised floor makes sense when you want easy access for later work. Bring your report to the estimate and we'll read it together.
Who is allowed to do foundation work in California?
A contractor licensed by the California Contractors State License Board, whenever the job needs a building permit, uses employee labor or costs $1,000 or more in labor and materials. The board describes a concrete contractor as one who forms, pours, places, finishes and installs concrete work, which is what a foundation calls for.
How do I apply for a building permit in Sunnyvale?
You apply through the city's online permit system, E-OneStop, which the permit center at City Hall runs. The same system is where documents get uploaded, city comments get answered, inspections get scheduled and payments get made, and when we pull the permit we're the ones working in it.
Will my lot need a ground study before building a house in Sunnyvale?
It will if your lot sits inside one of California's Zones of Required Investigation, because state law requires a site-specific geotechnical investigation, a study of the ground at the lot, before most buildings people will live in are permitted there. Ask about it early, since the permit waits on it, and city permit staff can tell you which documents your project needs.
How much does a new foundation cost in Sunnyvale?
Your price comes from a written estimate for your lot, because cost turns on whether you go slab or raised, the size of the footprint and what your plans and soils report call for. Choices that add work under the house, like a crawlspace or deeper footings the engineer asks for, push the number up.
How do I get ready for a foundation estimate?
Have your building plans and any soils report ready, because those two documents decide most of what we'll talk about. Think about what you might change in the house down the road too, since that's what tips some owners toward a raised foundation.
Related services that often go with a foundation
Concrete footings
When the drawings call for a deck, a porch or a small add-on rather than a full foundation, footings carry the load down to firm ground underneath.
Concrete parking lot building
If you own a shop, an office or a rental with shared parking, we build concrete lots laid out so cars park easily and rain runs off.
Service areas around Sunnyvale
Vertex Sunnyvale Concrete is based in Sunnyvale, CA, and we work across it and the cities around it, including Cupertino and Los Altos. Below are the 12 cities with their own page, each with more about the work we do there.
Book your foundation estimate in Sunnyvale
The foundation type shapes the rest of your drawings, so it pays to settle it before the plans go to the city.