
Precision Concrete Core Drilling
Commercial & residential concrete cutting, coring, and drilling services throughout the Bay Area

Built on Precision, Trusted by Contractors
Founded and operated by Ramon Ortega, Ortega Core Drilling Concrete Building has been delivering expert concrete cutting and coring services across the Bay Area for over 15 years.
We work directly with general contractors, subcontractors, homeowners, and property managers — providing clean, accurate, and safe work on every job site.
From a single anchor hole to a full commercial floor slab project, we bring the same level of professionalism and attention to detail every time.
Professional Core Drilling
Diamond-core drilling rigs that produce clean, precise cylindrical holes through concrete slabs, walls, ceilings, and foundations
Plumbing & Drain Lines
Clean penetrations through slabs and walls for plumbing rough-ins and drain line installations.
Electrical & Conduit
Precise holes for conduit pass-throughs in concrete floors, ceilings, and walls.
HVAC & Ductwork
Accurate openings for HVAC penetrations and ductwork in any concrete surface.
Anchor Bolt & Post Installation
Structural anchor holes drilled to spec for bolts, posts, railings, and equipment mounts.
Residential & Commercial
From single-family homes to large commercial job sites — we handle projects of every scale.
Any Angle, Any Diameter
Vertical, horizontal, or angled drilling. Diameters from ½" up to 36" through any concrete.
The Ortega Difference
When precision matters and downtime costs money, contractors across the Bay Area call Ortega first
Licensed & Fully Insured
LIC. # 1148087 — fully licensed contractor with comprehensive general liability and workers' comp insurance on every job.
Experienced Operator
Owner Ramon Ortega personally oversees all projects with 15+ years of hands-on drilling expertise.
On-Time & Reliable
We show up when scheduled and finish on time—keeping your project on track and on budget.
Clean, Precise Work
Diamond-tipped equipment produces smooth, exact cuts that minimize rework for downstream trades.
Safety First
OSHA-compliant practices to protect your crew and structure on every job.
Competitive Pricing
Straightforward quotes with no hidden fees. We work with your budget and your schedule.
Ready to Start Your Project?
Call Ramon directly for a fast, free estimate. We respond quickly and show up ready to work.