Foundation installation in San Carlos CA - a base matched to your soil and house
Building new or replacing a foundation under your house? We plan the pour around your soil, how your house sits and how it's tied down.
What goes into a new foundation for a San Carlos home?
Foundation installation in San Carlos is the forming, pouring and finishing of the concrete your house sits on, so the whole home rests on a solid base that suits the ground under it.
I start by learning how your house sits now, on a crawlspace or a slab, and how it's tied down, and then we work from the soil study and the engineer's plans. Some jobs are a whole new house, and others are a room addition that only needs concrete footings, the wider concrete base a wall or post stands on. The price moves with your house's setup, what the soil study turns up and what the plans call for, and the schedule mostly waits on the soil report, the drawings and the permit, not the pour itself. You get your own figure from the written estimate after I've been out. We've been doing this since 2017, based in San Carlos and working in the cities around it.
How do you know your house needs foundation work?
Some calls start with a set of plans for a new house or an addition. Others start with something noticed in the crawlspace or around the doors, and these are the ones we hear about most.
Doors and windows that start sticking or won't latch usually mean the house has shifted on what's under it.
Floors that slope or feel springy near the walls often point to a foundation that's settled or broken up.
Concrete in the crawlspace that crumbles when you scrape it usually means an old mix that's past saving.
Cracks in the foundation that keep widening, or one side higher than the other, usually mean the ground is moving.
No bolts showing along the bottom wood board in your crawlspace can mean the house isn't tied down.
A new house, addition or garage on the drawings means the foundation has to be planned before anything else.
If a crack is growing or a door that closed fine last month won't now, call (650) 866-1977 instead of waiting, because the cause decides the fix.
What happens when you call us about a foundation in San Carlos?
A foundation job runs in a set order, and most of the time goes into the steps before the concrete truck shows up. Here's who does what, from your first call to the walk-through.
Call or send the form
Call (650) 866-1977 or send the form with your address and whether your house sits on a crawlspace or a slab. If you already have a soil report or engineer's plans, send those too, so I can read them before I come out.
I measure and look it over
I usually come out myself to measure, see how the house sits and how it's tied down, and talk through what you want. Then you get a written estimate with the work spelled out, so you know what's included and what still waits on the soil study or the plans.
We form, pour and finish
When you're ready, we schedule the work, and our crew sets the forms, places the rebar, the steel that holds the concrete together, and pours to the engineer's plans. I check the work as it goes, so the steel and the anchor bolts are where the plans put them before the concrete covers them.
We walk the finished job
Before we call it done, I go over the finished foundation with you. The concrete then needs to cure, a slow hardening that gives it its strength, before the framing goes on it.
Get a written estimate for your foundation
Send the form and we'll get back to you within one business day to set a time. I come out, measure and look over the site, then send a free written estimate with no obligation.
- Call
- (650) 866-1977
- Hours
- Mon–Fri: 8 AM–11 PM, Sat–Sun: 7 AM–11 PM
Foundation setups and what decides yours
Most houses sit on one of a few setups: a crawlspace with a cripple wall, the short wood wall between the concrete and the floor, a basement with a full foundation wall, a slab on grade poured right on the ground, or a perimeter post and pier. Knowing which one you have, or want, comes first, because it decides the footings, the forms and how the house gets bolted to the concrete.
On expansive soil, ground that swells when it's wet and shrinks as it dries, a slab floor moves more than a heavy bearing wall does, and so does flatwork like a driveway or a concrete parking lot, so the slab gets the closest look in the design. If the budget gets tight, I'd rather simplify a finish than cut the soil work or the steel, because those are buried on day one and everything rests on them.
Around San Carlos, the county's hazard plan includes liquefaction and shaking maps, liquefaction being wet ground that goes soft when it shakes. They show general risk within neighborhoods and how communities compare, not what's under one lot, so they give you a broad picture while the soil study and the anchoring plan still decide your design.
Foundation installation questions from San Carlos homeowners
Does a new foundation need a soil study first in San Carlos?
For a new house, plan on one. Under San Mateo County's geotechnical report guidelines, a permit application for any new single-family home, whatever its size, includes a geotechnical report, a study of the ground, for the county Building Department, and engineering guidance for expansive soil advises basing the foundation choice on that study, so budget for it before you pick a design. If you're not sure which office reviews your lot, ask the county Building Department, and we'll settle with you who pulls the permit before work starts and write that into the contract.
How do I find out if my lot is in an earthquake hazard zone?
Type your address into the state's EQ Zapp map, which shows whether the property lies in a mapped earthquake hazard zone and also flags areas the state hasn't evaluated yet. A mapped zone means the state has determined weak soil or rock may be under the lot, ground that can fail in a quake and damage a house unless proper precautions are taken during grading and building, so it's worth knowing before the estimate.
Why does anchoring matter in a crawlspace home?
Because in an earthquake, a cripple wall without enough anchorage can let the house slide off its foundation. A poorly braced cripple wall can also collapse on its own, so ask any contractor how yours will be anchored and braced, which is why it's one of the first things I check.
What license covers concrete foundation work in California?
California's Contractors State License Board puts this work under its C-8 Concrete Contractor class, for contractors who form, pour, place, finish and install concrete. We're fully licensed and insured, and it's fair to ask anyone you're thinking of hiring which license they hold before the forms go up.
How much does foundation installation cost in San Carlos?
Your number comes from the written estimate after I've measured the site, because the setup, the soil and the access change from lot to lot. The biggest swings come from whether an old foundation has to come out first, how deep the soil study says the footings need to go, how much steel the engineer calls for and how easily our crew and the trucks can reach the work.
What causes a new foundation to crack?
Most cracks in a new foundation come from the ground and the prep under it, not the concrete itself. Soil that swells and shrinks, a subgrade, the ground the concrete sits on, that was raked level instead of dug out and packed, water running back toward the house and a pour in midday heat all show up later as cracks or a weak surface. We work from the soil study, check where the water runs and pack the base before we pour.
Related concrete work built on the same groundwork
Concrete footings
If you're adding a room, a porch post or a garden wall, new footings carry that load into firm ground the same way a house foundation does.
Concrete parking lot building
When an apartment or small business lot is cracking and holding water, a new concrete lot starts with the same soil and base work as a foundation.
Book a foundation estimate in San Carlos
Call (650) 866-1977 or send the form while your plans are still on paper, since forming and access questions are easier to sort out before the drawings are final.
Mon–Fri: 8 AM–11 PM, Sat–Sun: 7 AM–11 PM