Foundation & Site Work

Building on Solid Ground — From Homes to Prefab Set Days

Every great structure starts below ground. Oria Builders delivers expert foundation and site work for residential homes, hillside properties, commercial projects, and prefab/ADU installations across California.

• 30+ Foundation Projects
• 25+ Years Experience
• 99% First-Pass Inspections
• 3 Regions Service Areas

What We Offer

• Residential slab and stem wall foundations
• Hillside and deep foundation systems
• Prefab and ADU site preparation
• Seismic retrofits and earthquake bracing
• Foundation repair, leveling, and underpinning
• Grading, excavation, and drainage systems
• Retaining walls and structural support
• Foundation engineering coordination

Our Process

Site Evaluation & Soil Analysis

Inspect property, review soil reports, assess slopes and drainage.

Engineering & Permits

Coordinate with structural engineers and manage permit applications.

Excavation & Forming

Precision excavation, grading, and formwork with rebar and anchor bolts.

Pour, Cure & Inspect

Expert concrete placement with proper curing and inspections.

Backfill & Handoff

Final grading, waterproofing, and a clean, ready-to-build foundation.