Business Details
46 Years
experience
Your Trusted Sitework & Construction Partner in Pleasant Hill
Diablo General Engineering has been delivering comprehensive sitework solutions since 1980. Founded by Bob and Brenda Truax, our company built a reputation for tackling complex grading challenges that others avoided. Under new leadership since 2023, President Frankie Lozano and Vice President Evan Miller continue our tradition of excellence while embracing modern technologies like GPS precision grading. Our team combines technical expertise with a collaborative culture, prioritizing quality craftsmanship and safety in every project. We maintain full ownership of our equipment fleet, including excavators, dozers, and compaction machinery, ensuring reliable service delivery.Our approach integrates wet and dry utilities, hardscaping, and specialty engineering solutions to streamline project timelines for clients. With over 35 machines and 25 trucks, we offer turnkey site development services that minimize coordination challenges. Our commitment to innovation extends to stormwater management systems and sustainable construction practices. We serve commercial, institutional, and infrastructure clients across California, maintaining the same dedication to problem-solving that defined our early years. This combination of experience, resources, and forward-thinking methodology positions us as trusted partners in the construction industry.
Services
Earthwork
Wet Utilities
Dry Utilities
Hardscape
Demolition
Specialty Services
Storm Drain Systems
Concrete Flatwork
Site Lighting
Tree Clearing
Details
- Year established: 1980
Highlights and features
- 40+ years solving complex sitework challenges since 1980
- Full equipment ownership ensures project reliability and efficiency
- GPS technology integration for precision grading and layout
- Comprehensive safety programs with proactive risk management
- Single-source provider for complete site development scopes
Services
Earthwork
Our earthwork services include mass excavation, slide repair, and building pad preparation using GPS-guided equipment. We maintain complete control over grading projects through owned machinery and experienced crews. This approach ensures precise subgrade preparation while minimizing project delays for commercial and infrastructure developments.
Wet Utilities
We install complete sewer, storm drain, and water distribution systems from main lines to service connections. Our capabilities include bio-retention basins and stormwater filtration systems that meet modern environmental requirements. Experienced crews handle complex utility infrastructure for both public and private developments across California.
Dry Utilities
Our dry utility services cover power distribution, gas lines, telecommunications, and site lighting installations. We coordinate trenching and backfilling while managing subcontractor integration for complete utility solutions. This includes both public utility connections and private development requirements for commercial properties.
Hardscape
We provide full hardscape solutions including asphalt paving, concrete flatwork, and pervious surface installation. Our integrated approach handles subdrain preparation through final paving layers, ensuring proper coordination between different surface materials. This comprehensive service streamlines site development timelines for clients.
Demolition
Our demolition services include structure removal, landscape clearing, and utility abandonment for site redevelopment. We handle complete site preparation from tree removal to foundation demolition, following all safety regulations. This service supports both new construction and infrastructure upgrade projects.
People
Frankie Lozano
President
Frankie Lozano leads Diablo General Engineering as President, bringing extensive industry experience and strategic vision to continue the company's legacy of excellence in sitework solutions.
Evan Miller
Vice President
Evan Miller serves as Vice President, overseeing operations and project execution while maintaining the technical expertise and customer-focused approach that have defined Diablo General Engineering's success since 1980.
Questions
What construction services do you specialize in?
We specialize in earthwork, wet/dry utilities, hardscaping, demolition, and specialty engineering projects for commercial, residential, and infrastructure developments.
How long have you been in business?
We've provided sitework solutions since 1980, combining over four decades of experience with modern construction technologies and methodologies.
What areas do you serve?
We primarily serve the East Bay Area and surrounding California regions, handling projects from Pleasant Hill to Bay Point and beyond.
Do you handle complete site development projects?
Yes, we offer turnkey sitework solutions that integrate multiple scopes under one contract to streamline project timelines and coordination.
What equipment do you own?
We maintain 35+ machines including excavators, dozers, scrapers, and compaction equipment, plus 25+ trucks and trailers for project transportation needs.
How do you ensure project quality?
We use GPS technology for precision grading, implement rigorous safety programs, and maintain full quality control through experienced crews and owned equipment.
