Services › Foundation & Site Work
Foundation & Site Work
Building on Solid Ground

Every structure starts below ground. Oria Builders delivers foundation and site work for residential homes, hillside properties, and prefab/ADU installations in California.
- 500+ projects completed across California
- 5-star ratings on Google, Yelp and Thumbtack
- Recognized by Houzz, HomeGuide and other platforms among California's top contractors
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
- Retaining walls and structural support
- Foundation engineering coordination
Our Process
1. Site Evaluation & Soil Analysis
Inspect the property, review soil reports, assess slopes and drainage.
2. Engineering & Permits
Coordinate with structural engineers and manage permit applications.
3. Excavation & Forming
Excavation, grading, and formwork with rebar and anchor bolts.
4. Pour, Cure & Inspect
Concrete placement with proper curing and inspections.
5. Backfill & Handoff
Final grading, waterproofing, and a ready-to-build foundation.
Foundation & Site Work Case Studies
- Elevating Elegance: Foundation in Beverly Hills
Foundation · Beverly Hills – Beverlywood · $85,000 - $95,000 · 10 weeks · completed September 2023
Service Regions
Los Angeles County • San Fernando Valley • Westside & South Bay • SF Bay Area & Silicon Valley. See completed projects or remodeling in Los Angeles.