Foundation installation in Atherton CA - a house that sits steady on clay soil
Have plans for a new home or addition in Atherton? We build the foundation from your engineer's drawings, with the ground work done right first.
What goes into a new foundation in Atherton?
Foundation installation is forming, pouring and finishing the concrete that carries your house's weight down to stable ground, and Premier Atherton Concrete builds new foundations for homes and additions in Atherton and the cities around it.
Most calls come once the engineer has drawn what goes under the house and you need someone to build it. We read those plans and any soils report closely and build from them, with the same ground-first care we bring to driveways and concrete parking lot building, because concrete only holds up as well as the ground under it.
Price follows the size of the footprint, how deep the engineer wants the footings, how much steel goes in and how easy the lot is to reach. The schedule turns on the engineer's review, the permit and the time of year. We look into permits before we quote, and since the Atherton Building Department issues permits for new structures and for grading or digging soil, we handle that application and meet the inspector on site. The written estimate gives you your number.
What shapes a foundation in Atherton
Most of what decides how a foundation holds up happens in the ground before any concrete shows, so these are the points I talk through on every lot.
Soil that swells when wet
One geotechnical firm calls expansive soil, ground that swells when it gets wet, common in parts of San Mateo County, and its foundation reports test for it and cover drainage.
Shallow or deep design
On weak or swelling soil, a deep foundation carries the house past the unstable layer to firm soil that doesn't swell, and one engineering manual calls that economical. Your engineer picks the type.
Footings and the steel inside
The concrete footings spread the house's weight under the walls, and rebar, the steel bars tied inside them, holds the concrete together when the ground shifts.
Ground work before finish
The subgrade, the soil the concrete sits on, gets buried on day one, which makes it tempting to trim. I won't skimp there, since bad ground is the one thing you can't fix later.
Foundation questions we hear in Atherton
How much does a new foundation cost near Atherton?
Foundation installation in the San Francisco area usually costs about $10,000 to $35,000 per job. That's the going rate around here, not our quote, and where your job lands depends on what your plans call for and what the lot is like, so I'll walk it and give you the number in writing.
Do I need a soil report for a new foundation in Atherton?
You need one whenever Atherton calls for a geotechnical report, a soils study done by an engineer, and it goes in with your plans along with the engineer's letter confirming the plans follow its recommendations. Since the plans can't go in without that letter, get the engineer's review on the calendar early.
When is the best time to build a foundation on clay soil?
That same engineering manual advises building on expansive clay after the wet season where you can. It also advises draining any ponded water and keeping excavations from drying out, and we keep open digs protected while the work is underway.
How do I find out if my lot is in an earthquake hazard zone?
Look up your address on California's EQ Zapp map, which shows whether the property sits in a mapped earthquake hazard zone or that the state hasn't evaluated the area yet. If it's in a zone, geologic and engineering investigations come before construction, so it's worth checking early.
What should I check before hiring a foundation contractor in Atherton?
Atherton won't issue the permit until the primary contractor holds a Town of Atherton Business License, and the permit file lists the contractor's license number and workers' compensation insurance. Before final inspection, a subcontractor list also has to show every subcontractor holds an Atherton business license, so ask early who fills that out.
What is the best way to keep water away from a new foundation?
Keep the ground sloping away from the house so water drains off instead of pooling, which the same manual advises for foundations on expansive soil. Its upkeep advice also says to keep gutters working, turn runoff away from the house and keep drainage channels clear.
Why Atherton homeowners call Premier Atherton Concrete for foundations
You'll deal with me from the first visit to the final walk-through, and I'd rather give you a straight answer about cracks or cure time up front than have it catch you off guard.
I walk every job myself
I'm the one who looks over your lot and writes the estimate, and our own crew does the work.
In business since 2021
I learned concrete pouring small slabs and working on other crews before starting this business in 2021.
Fully licensed and insured
Ask to see both when I come out, and I'll have them with me before anything gets scheduled.
Satisfaction guarantee on every pour
Every foundation we pour is backed by our satisfaction guarantee, and I'm happy to talk it through when I'm out.
Bring your plans to the estimate
Call (650) 516-3703 or use the contact form with your address, plans and any soils report ready.
Get your foundation plans looked at on site
Calling while your engineer is still finishing the plans gives us time to check access, trees and drainage before the dig needs a date.
What happens when you call about a foundation in Atherton?
We plan the dig and the pour around your household and Atherton's work hours, which allow construction and deliveries only from 8 a.m. to 5 p.m. on weekdays, with no work on weekends or Atherton's holidays.
Call or send the form
Call (650) 516-3703 or send the form, and we'll get back to you to set a time for me to come out.
I walk the lot
I look over the site and your plans and ask about trees, vehicles and where the water goes, since each one shapes the dig.
Your estimate in writing
I write up what the plans call for and what it'll cost, so you can see the whole job before you decide anything.
Permits, pour and walk-through
In Atherton the tree protection gets installed and inspected before the permit is issued, then we prep, form, pour and walk the finished work with you.