Our Services
Commercial and industrial excavation & grading services for general contractors, developers, and industrial operators across Northern California.
Request a BidOverview
Proper site preparation is the foundation of every successful construction project. Liaison Concrete Construction provides precision machine excavation and site grading for commercial, industrial, and agricultural projects across Northern California. Our experienced operators and modern equipment deliver accurate grades, clean cuts, and properly compacted subgrades — setting the stage for every pour that follows.
What It Is
Excavation and grading involves the mechanical removal, movement, and compaction of earth to prepare a site for construction. This includes clearing overburden, cutting and filling to design grades, shaping drainage features, and compacting subbase material to engineered specifications. Commercial excavation requires GPS-guided equipment, experienced operators, and close coordination with civil engineers to hit tolerances that protect the structural integrity of the work above.
Applications
Commercial building pads and slabs-on-grade
Warehouse and distribution center site preparation
Industrial facility grading and earthwork
Agricultural structure pads and access roads
Parking lot subgrade preparation
Utility trench excavation and backfill
Retaining wall foundation excavation
Detention basin and drainage channel grading
Local Expertise
Northern California presents a range of soil conditions — from expansive clay in the Central Valley to rocky hillside terrain in the Bay Area foothills. Our crews are experienced navigating poor bearing soils, high groundwater, and tight urban job sites. We work closely with soils engineers and project managers to address geotechnical conditions before they become schedule problems.
Why It Matters
Under-prepared subgrades cause slab cracking, settlement, and structural failures that cost far more to repair than to prevent. Precision grading ensures your foundation, slab, or paving system performs as designed — and that drainage moves water away from your structure rather than toward it.
Where We Work
We provide excavation and grading services throughout Northern California including San Jose, Palo Alto, Redwood City, Concord, Livermore, Fresno, Sacramento, Stockton, and Modesto.
Common Questions
Yes. One of our key advantages is handling the full scope — from initial excavation and grading through concrete placement — under a single subcontract. This reduces coordination overhead for general contractors and keeps the schedule tight.
We work on commercial and industrial projects ranging from small building pads to large warehouse and industrial facility sites. Contact us with your project scope and we'll confirm fit and availability.
Yes. Our equipment and operators are experienced with rock breaking and removal on commercial sites throughout Northern California. Rock conditions will be factored into our bid based on soils reports and site review.
Get a Quote
Submit your project details below and our estimating team will follow up within 1–2 business days. You can also email plans and bid packages directly.
CSLB #1099967 · DIR #1001042886 · DVBE #2037479