EXCAVATING CONTRACTOR

Licensed Excavation Contractor in Santa Clara County, CA

DW Excavation, LLC is the licensed excavation contractor in Santa Clara, delivering precise earthwork, trenching, grading, and site prep for residential and commercial projects. Our professional, affordable team combines modern equipment with permit-ready expertise to keep your job on schedule, to spec, and compliant with California codes and City of Santa Clara requirements. From utility trenches to foundation digs, we bring the right people, the right machines, and a clean, safe site, start to finish.


Why Choose DW Excavation

Clients in Santa Clara, from homeowners to GCs and facility managers, choose us for clear, line-item bids, clean sites, and zero surprises. Our licensed, insured crews coordinate with your general contractors, engineers, and utilities, building to CSLB standards and City of Santa Clara grading, encroachment, and stormwater rules for fewer delays and faster inspections.

While many firms specialize narrowly or route you through marketplaces, DW Excavation delivers end-to-end excavation with direct accountability. We bring modern equipment, OSHA-minded trench safety, and GPS-guided grading, scaling from backyard utilities to roadway support, on time, on budget, and to spec.

Our Comprehensive Excavation Services

From pre-construction layout to the last compaction test, our team handles the dirt work that makes every structure, utility, and roadway possible. Below are our core services, each delivered with meticulous planning, site safety, and tight coordination with inspectors.

Land Clearing and Preparation:

Brush, trees, and obstructions are removed with BMPs in place; we strip topsoil, remove roots, and stabilize disturbed areas. When project size triggers stormwater requirements, we align our plan with the County’s NPDES and SCVURPPP guidance.

Road Expansion:

We provide subgrade cut/fill, proof-rolling, and compaction to meet section thickness and density targets, while coordinating traffic control and encroachment permits within County rights-of-way. Our teams stage equipment and haul off to minimize disruptions and keep paving schedules on track. 

Pond Installation:

Whether for stormwater detention, fire protection, or amenity use, we excavate basins to grade, install liners/armoring, and shape slopes for stability and maintenance access. Erosion and sediment controls are implemented during construction to protect waterways. 

Trenching for Utilities:

Precision trenching for water, power, gas, fiber, and sewer with correct bedding, shading, and backfill lift compaction, plus traffic-safe plating. We coordinate encroachment approvals when work enters the public right-of-way and document locations for accurate as-builts. 

Foundation Excavation:

Footings, stem walls, and basement digs executed to plan-set depths and setbacks with shoring or benching as required; we protect adjacent structures and utilities and deliver clean, true-bottom excavations ready for forms and inspections. Our spoil management keeps sites orderly and efficient.

Grading Services

Rough and finish grading using GPS-guided equipment to achieve design elevations, drainage swales, and pads with tight tolerances. We manage cut/fill balance, export/import, and compaction testing to meet geotechnical recommendations and permit conditions.

Benefits of Our Service

We bring a builder’s mindset and a regulator’s attention to detail. That means fewer RFIs, faster inspections, and safer, cleaner jobsites, all while protecting your budget and schedule.

  • Permit-Ready Expertise: We help align grading, encroachment, and stormwater requirements to your scope to avoid delays. 

  • Schedule Reliability: Right-size crews and equipment to ensure your critical path keeps moving.

  • Cost Control: Accurate takeoffs, balanced cut/fill, and efficient haul-off reduce change orders.

  • Safety First: OSHA-minded field practices, trench safety, and traffic control protect people and property.

  • Inspector-Friendly: Clear documentation, compaction results, and as-builts streamline approvals.

  • Local Knowledge: Familiarity with Santa Clara County and city portals, processes, and inspectors speeds coordination. 

Our 4-Step Process

We use a clear, repeatable workflow that keeps permits, safety, and schedule on track from first call to final walk-through. Each phase is documented, coordinated with your stakeholders, and optimized to control cost and risk.

Consultation & Due Diligence

We walk the site and plans, verify utilities, soils notes, access, and export/import assumptions, then align the scope with your budget and timeline. Expect transparent, line-item pricing and early identification of permits, constraints, and opportunities.

Buildable Plan, Sequencing & Controls

Our team converts drawings into a field-ready plan: phasing, haul routes, traffic control, SWPPP/BMPs, and inspection milestones. We schedule crews and equipment, balance cut/fill, and lock in QA/QC checkpoints to prevent rework.

Precision Field Execution

Licensed crews mobilize with safety briefings and GPS-guided equipment to deliver clean cuts, accurate trench depths, and verified compaction. Daily reporting, density/elevation checks, and inspector coordination keep progress predictable.

Closeout, As-Builts & Handover

We restore surfaces, remove plates, stabilize disturbed areas, and complete punch items for a clean turnover. You receive as-builts, test results, and photo documentation so your records, warranties, and future work are fully supported.

  • In unincorporated Santa Clara County, a grading permit is generally required if cuts/fills exceed 5 feet or the total volume is 150 cubic yards or more, or if work affects a watercourse; smaller work may be exempt. City thresholds can differ; ask us and we’ll verify.

  • Projects that disturb one acre or more typically need a SWPPP and ongoing inspections during the wet season; the County implements NPDES requirements through its development review process. We help right-size BMPs for your scope.

  • Any work in the County’s road right-of-way, like utility laterals, new driveways, or curb/gutter, requires an encroachment permit, which often must be secured before related building permits are issued. We coordinate this with the appropriate agency.

  • Use the Contractors State License Board (CSLB) “Check a License” tool to confirm status, classifications, and bonding; we encourage every client to verify any bidder before hiring.

  • Access, export distance, utility conflicts, groundwater, soil type, and permit conditions (grading, encroachment, stormwater) are the biggest drivers; accurate planning helps control them and protect your schedule. We price transparently and keep you updated.