Slab foundation building in Upland CA - a solid base planned for your lot
Building an addition, a garage or a new home that sits on a slab? We plan it around your lot, then pour and cure it right.
- Licensed and fully insured.
- Free quotes on site.
- Expect a reply within 1 business day.
What does it take to build a slab foundation in Upland?
Slab foundation building in Upland means we form, pour and finish a concrete slab that sits directly on the ground and carries your house, so everything built above it starts on a solid, level base.
Most people who call us about a slab are building an addition, a garage or a new home, and they want to know what the base will take before anything else gets scheduled. The price moves mostly with the slab's size and thickness, how much digging and base work the ground needs, how much steel goes in and which kind of slab your plans call for. The schedule turns on the permit, the rest of your build and the weather around the pour. Your written estimate lays out the steps and what's included for your own slab. We're based in Upland and work in Ontario, Rancho Cucamonga, Claremont and the other cities around it.
How do you know it's time for a new slab?
Cracks across an old slab
Long cracks that cross a garage, shop or room floor, especially ones that keep opening or step up on one side, usually mean the ground underneath settled because the base was never dug out and packed. Patching the top doesn't reach the cause, and the longer water gets into those cracks, the more the ground under them softens.
A floor that dips or slopes
If a ball rolls to one corner or doors start sticking, part of the slab has likely sunk. Waiting lets the low spot keep dropping and drags the cracks along with it, so the fix keeps getting bigger.
Plans that call for a slab
If your addition, garage or backyard building is drawn on a slab, the slab is the first thing built and every other trade waits on it. Calling early leaves time to sort out your lot's location questions and the permit, instead of rushing the base to keep the framers on schedule.
How we handle slab foundation building
We go over your plans and where your lot sits first, because location can change how the slab is designed. Then we dig out and pack the subgrade, the ground the slab rests on, since a base that's only raked level settles with the dirt and takes the slab down with it. We check where water will run so the finished grade sheds it away from the house, set the forms and place the rebar, the steel that holds the slab together, and we pour in the cooler part of the day because concrete placed in midday heat can come out with a weak, dusty top. After finishing, we cut control joints, shallow cuts that give the concrete a straight place to crack instead of a random one, and we keep the new slab from drying out too fast while it cures. If the budget gets tight, the base is the last place I'd cut, because nobody sees it on day one and it's the part you end up paying for twice when it goes wrong.
A slab is often one piece of a bigger build. When your plans need more than a slab on grade, that's our foundation installation work, and if the new building needs paved parking beside it, we handle concrete parking lot building too.
Conventional reinforced slab
A grid of rebar runs through the concrete, usually with thicker edges under the walls, and it suits most additions, garages and outbuildings. Your plans or engineer decide the thickness and steel, and we build to them.
Post-tensioned slab
Steel cables run through the slab and get pulled tight once the concrete hardens, squeezing it together so it holds up better when the ground moves. It's usually called for by the designer, and we'll talk through whether it fits your project when I see the lot.
Get a free on-site estimate for your slab
We reply within one business day to set a time, then I come out to your property to look at the lot and your plans. The estimate is free, and there's no pressure to book.
(909) 694-4021- Based in
- Upland, CA 91786
- Hours
- Mon–Fri: 6 AM–10 PM, Sat–Sun: 7 AM–11 PM
What happens after you call about a slab in Upland?
Here's how a slab job runs from your first call to the walk-through, so you know what comes next at every step.
Call and I come out
You call, and I come out to look at the lot, hear what you have in mind and answer your questions right there. Have the address, the slab size you're planning and any plans you've got ready.
Get a written estimate
You get a written estimate that lays out each step and what's included, so you can see where the money goes before you decide. If the job needs a permit, we take care of it with the city, then we pick a date that works for you.
Pour, cure and walk through
Upland allows construction on weekdays from 7 a.m. to 6 p.m., so we schedule the pour inside those hours and keep you posted as the work moves along. When it's done, we walk the finished slab with you.
Why Upland property owners call D&K Upland Concrete for slabs
I'm on site for your pour
I come out to look at the job myself, and I'm there with our crew of finishers when we do the work. The person who heard your plans is the one watching the forms, the pour and the joints.
Planned like a construction schedule
We've been in business since 2023, and before that I spent years running the schedule for a busy construction company and learned the trade from the finishers I sent out. That's why every job gets laid out one step at a time, and why I'd rather answer a question twice than leave you guessing.
Licensed and fully insured, every pour
California's Contractors State License Board licenses concrete contractors, the trade that forms, pours and finishes concrete, and we're licensed and fully insured. That matters most on a foundation, the biggest pour on most properties and the hardest one to redo.
A slab starts with a look at your lot. Request your estimate with the property address, the slab size you have in mind and any plans you have ready.
Slab foundations and site planning in Upland
The city lists its seismic design category, the earthquake rating a building is designed to, as depending on site location, so the design behind a slab can change from one Upland lot to the next. If a lot sits in a mapped earthquake fault zone, cities and counties require a geologic investigation by a California-licensed geologist before they'll permit a new project, to show the building sits off active faults. Whether that applies to yours isn't known until we have the address, which is why the lot comes first on our jobs and we raise anything like that before we price the pour.
Most slab calls we get around here are for additions, garages and backyard buildings on lots that already have a house and a finished yard, so the plan has to cover how the concrete truck reaches the forms and what we protect on the way in. We see the same kind of work in Ontario and Rancho Cucamonga, and we plan it the same way.
Questions about slab foundations in Upland
How much does a slab foundation cost near Upland?
A reinforced concrete slab in the San Bernardino area usually costs about $8 to $13 per square foot. That's the going rate for the area, not our price, and your written estimate shows what's included for your own slab.
Is a post-tensioned slab worth it on a new house?
It can be on ground that shrinks and swells, where the trade group for post-tensioning calls it a cost-efficient, high-performance answer to foundation problems. The group says it cuts down on cracking and keeps any cracks tight, which helps keep insects out, and less water getting through means less risk of damaged flooring and mold. Whether your ground is that kind is a good question for the estimate, so bring it up when I come out.
How do I request a building permit in Upland?
You request it from the city's Building and Safety Division, and it only takes requests online. On our jobs, we file it for you, so you don't have to.
How do I know if my lot is in an earthquake zone?
Type your address into the state's EQ Zapp tool, and it shows whether the property lies in a mapped earthquake hazard zone. If it turns up a mapped fault zone, the geologic investigation mentioned above comes into play, so check before your plans are drawn.
Will a new slab foundation crack like my old one?
Your odds are a lot better when the new concrete is kept from drying out too fast after the pour. One university's curing guide says holding the moisture in newly placed concrete reduces the risk of cracking and helps it last, so whoever you hire, ask how they'll do that.
Do I need a licensed contractor to pour a slab in California?
Yes for almost any slab, because state law only exempts minor work from a contractor license when the total price, labor and materials included, is under $500, and not when that work is part of a larger project. In Upland, state-licensed contractors also need a current city business license, so it's fair to ask about both.
Other foundation and paving work we do
Foundation installation
If your plans call for footings, stem walls or a raised floor instead of a flat slab, this is where the rest of the foundation gets built.
Concrete parking lot building
A new shop or rental building often needs room for cars beside it, and a lot poured to carry that traffic keeps the ground from rutting and pooling.
Cities where we build slab foundations
D&K Upland Concrete is based in Upland, California, and the 12 cities below have their own pages here, including Ontario and Rancho Cucamonga. They aren't the only places we work, so if your city isn't listed, give us a call.
Upland, CA
Get your slab foundation planned out right
Call (909) 694-4021 or send the form with your address and plans, so the questions about your lot get answered before the rest of your build is booked.