Underground utilities, grading, concrete and asphalt for residential and commercial projects. One licensed contractor, our own equipment, and the same crew from first cut to final paving.
Custom homes, ADUs, remodels and everyday homeowner projects. Compact machines that fit tight side yards, careful protection of landscaping and hardscape, and clean job sites.
Site utilities, storm drainage and paving for commercial builds, tenant improvements, solar/BESS and EV sites. We work as a sub to GCs or direct to owners and developers.
DIR-registered for California public works. We bid and perform standard private work and prevailing-wage projects, with certified payroll handled on every public works job.
Open trench, directional bore, or a combination — we pick the method that fits the site, the schedule and the budget.
New and replacement onsite sewer from the house to the main or cleanout — trenched or bored on grade, with cleanouts, testing and inspection.
Grinder pump stations and pressurized force mains for homes and ADUs that sit below the sewer main or too far away for gravity flow.
Force main & grinder pump details →Area drains, catch basins, trench drains, downspout and storm lines, plus connections to the street or approved discharge points.
Water mains, domestic services and fire lines in PVC, copper or fused HDPE — installed, pressure tested and ready for inspection.
Pad preparation, cut and fill, drainage slopes and compaction to get the site ready for foundations, hardscape and paving.
Saw cutting, breaking and haul-off of driveways, walkways, slabs and parking areas — including removal for utility trenches.
New asphalt and concrete in the street and sidewalk under city encroachment permits — trench patches, curb, gutter and sidewalk replacement to city standards.
Asphalt restoration →Private driveways, parking areas, walkways, equipment pads and slabs — base prep, forming, pouring and paving.
Concrete restoration →Applicant-side trench, conduit and gas service work performed by PG&E OQ-qualified personnel.
PG&E excavation →We own the machines we run, so your schedule doesn't depend on rental availability.
Six-ton class excavator with the reach and lifting capacity for water mains, storm lines, grading and loading trucks — year-round comfort in an enclosed cab.
Fits through side gates and works next to houses, fences and trees without tail swing — ideal for sewer laterals and backyard work on residential sites.
Core Engineering Inc. (DBA Apex Directional Drilling) is registered with the California Department of Industrial Relations as a public works contractor.
Our PG&E OQs cover excavation, pipe installation, backfill and compaction, tracer wire, locating and damage prevention — so gas and electric work near PG&E facilities is done by qualified personnel.
Send us your plans or PG&E sketch and we'll get you a clear, detailed proposal — standard or prevailing wage.