Our Areas of Expertise
Pier Drilling & Foundation Piers – Bay Area, CA
At Jandu General Engineering Inc., we specialize in pier drilling and foundation pier construction for residential and hillside projects throughout the Bay Area — including Hillsborough, Burlingame, Los Altos, Saratoga, San Jose and surrounding cities. Our team installs engineered drilled piers, and concrete foundations designed for long-term stability and structural strength. Each pier is drilled to precise depth and diameter, reinforced with rebar cages, and poured with high-strength concrete for maximum load capacity.
We handle everything from foundation pier installation and slope stabilization to grade beam tie-ins and retaining wall support, ensuring all work meets city inspection, geotechnical, and structural engineering standards for safety, accuracy, and code compliance.
(510) 602-1518— Licensed • Bonded • Insured | CSLB #A-1095286
AREAS OF EXPERTISE
Foundation Pier Drilling
We specialize in residential foundation pier drilling across the Bay Area. Our team installs drilled concrete piers for new construction, additions, and retaining wall footings — built to precise elevations with engineered plans and rebar reinforcement. Every project meets city inspection and geotechnical standards for long-term structural strength.
Foundation Pier Installation
Precision-drilled piers installed to plan depth and elevation for residential foundations, additions, and retaining walls.
Structural Footings & Grade Beams
Excavated, formed, and reinforced concrete footings with proper subgrade compaction and rebar placement for stability and load support.
Hillside & Retaining Wall Support
Engineered piers installed for slope and wall stability, ensuring soil retention and long-term integrity on sloped properties.
Foundation Repairs & Reinforcement
Pier drilling for underpinning or stabilizing existing foundations affected by soil movement or settling.
What We Do At jandu
Why Should You Hire Us?
Quality service goes beyond the job itself, as our team is committed to providing the best service to our customers. We are happy to answer any questions you may have before, after, and throughout the process.
Licensed & Insured
Fully licensed, bonded & insured Bay Area contractor.
On-Time & On- Budget
We finish projects as promised.
Family Owned & Operated
Family Owned & Operated business with a skilled crew.
Local Bay Area Experts
Over 15 years of local experience in excavation and demolition operations
want to ask anything
Frequently Asked Questions
You’re invited to browse a selection of recently completed projects below
What are foundation piers used for?
Foundation piers are used to transfer structural loads to deeper, stable soil or bedrock. They’re commonly required for new construction, hillside properties, additions, and structural upgrades.
Do you work from engineered plans?
Yes. All pier drilling and installation is performed strictly according to approved structural and geotechnical engineering plans.
How deep are foundation piers typically drilled?
Pier depths vary based on soil conditions and engineering requirements. Depths are determined by geotechnical reports and structural plans.
How long does pier drilling usually take?
Most pier drilling projects are completed within a few days, depending on the number of piers, access conditions, and inspection scheduling.
What types of piers do you install?
We install drilled concrete piers and foundation piers according to engineered plans and project requirements.
Can you drill piers on tight-access or hillside sites?
Yes. We have specialized equipment and experience to drill piers on tight-access and hillside properties while maintaining safety and accuracy.
Do you coordinate inspections and testing?
Yes. We coordinate with city inspectors and third-party engineers for required inspections, reinforcement placement checks, and concrete placement approvals.
Are you licensed and insured for pier drilling work?
Yes. We are fully licensed, bonded, and insured to perform pier drilling and foundation pier installation throughout the San Francisco Bay Area.