Equipment
Custom and conventional rigs
Limited-access machines, crane-mounted rigs, excavator-mounted rigs, custom soil nail and tieback setups, cranes, compressors, and support equipment.
Explore EquipmentCA Lic. #830680 | Founded 1985
Zamborelli Enterprises, Inc.
Foundation drilling and shoring for demanding Southern California sites.
1985 Founded
45+ Years of team drilling experience
3 Core Southern California counties served
$100K-$3M Documented project range
Specialty Foundation Contractor
Built for sites where access, soil, and sequencing matter.
Zamborelli supports general contractors, owners, and design teams with foundation drilling, shoring, tieback, soil nail, underpinning, and limited-access drilling work across Southern California.
The company’s listed capabilities include large diameter shafts, low-overhead drilling, limited-access equipment, tiebacks, rock bolts, underpinning, hand-mined shafts, soil nails with shotcrete, and micropiles.
Featured Capability
Deep foundations and shoring systems for demanding field conditions.
Zamborelli’s work centers on drilled foundations, earth retention, restricted-access drilling, and field planning for sites where equipment fit and sequencing matter.
View Project CategoriesCore Services
Deep foundation and retention work
Services are organized around drilling, shoring, stabilization, underpinning, and limited-access conditions.
Large Diameter Shafts
Drilled shaft work for deep foundation systems, bridge structures, hillside construction, and heavy civil foundations.
Limited Access Drilling
Low-overhead and restricted-access drilling for sites where conventional equipment cannot operate efficiently.
Shoring with Tiebacks
Earth retention systems built around practical means, capable equipment, and field experience on complex excavations.
Soil Nails and Shotcrete
Slope, excavation, and hillside stabilization support using soil nails, shotcrete coordination, and custom equipment setups.
Underpinning and Micropiles
Deep foundation support for existing structures, tight sites, and repair conditions that require careful sequencing.
Design-Build Support
Practical preconstruction input for general contractors, owners, and design teams planning foundation and shoring work.
Markets
Built for public, private, hillside, and access-limited work.
Commercial foundationsPublic and infrastructure workHillside stabilizationLimited-access sitesResidential structural supportRepair and underpinning conditions
Capabilities
Foundation and shoring scope
Large diameter shafts, shoring with tiebacks, rock bolts, underpinning, hand-mined shafts, soil nails with shotcrete, micropiles, and limited-access drilling.
Read About ZamborelliPlanning
Site access planning
Contractors can start with site constraints, drilling requirements, equipment access, and sequencing so the right approach is discussed early.
Start a ConversationProject Planning
Have a complex foundation or shoring condition?
Call the team to discuss access, equipment fit, sequencing, and drilling requirements.