

DIABLO EXCAVATION
& CONSTRUCTION
DIABLO EXCAVATION
& CONSTRUCTION

UNDERGROUND UTILITIES
Precision infrastructure solutions for critical utility networks, delivering safety-first underground installation and certified standards across Northern California.
Core Competencies
UTILITY CONSTRUCTION CAPABILITIES
Category
WATER SERVICE
• New water service line installation
• Replacement of aging or failing water mains
• Service taps and meter box installation
• Fire line and hydrant lead installation
• Tie-ins to existing municipal water systems
• Spot repairs on buried water lines
Category
SANITARY SEWER SERVICE
• Manhole installation
• Sewer lateral replacements
• New sewer infrastructure
• Existing infrastructure repair
• Engineered septic systems
• Grease traps and interceptors
• Infiltration systems
Category
GAS SERVICE
We provide professional gas utility services for residential, commercial, and development projects, including new gas service installations, gas line extensions, trenching, excavation, backfill, and site restoration. Our experienced team delivers safe, efficient, and reliable underground gas utility solutions while coordinating with utility providers and other trades to keep your project on schedule.
Category
STORM DRAINAGE SYSTEMS
Precision placement of utility vaults and sanitary manholes. Our heavy equipment fleet ensures safe and accurate setting in any soil condition.
Maintenance
ELIMINATE SHUTDOWN WITH INSTA-VALVE
Say "goodbye" to system shutdown and gain targeted control during your
next planned, routine, or emergency maintenance project with the leading
insertion valve for potable water,wastewater, and industrial applications.
Hydra-Stop Valve Insertion
Emergency
ELECTRICAL SERVICE
• Preferred Applicant Installer for PG&E
• Conduit upsizing for panel upgrades
• Joint utility trenching for combined services
UNCOMPROMISING SAFETY STANDARDS
At Diablo Excavation & Construction, safety isn't just a protocol—it's the foundation of every project. We strictly adhere to OSHA regulations, CPWR guidelines, and PG&E certified underground installation standards. Our teams undergo rigorous field training to ensure that every trench, utility line, and site excavation is executed with maximum precision and zero risk.
OSHA COMPLIANT
PG&E CERTIFIED
