DAVID MAJOR GENERAL ENGINEERING
Septic System Installation, Concrete & Excavation for Homes & Businesses- Built to Last
From septic systems to site prep, we deliver reliable excavation and septic installation services across Northern California—with craftsmanship, communication, and care.
Tired of Contractors Who Don’t Call Back or Don’t Follow Through?
Whether you’re a homeowner needing a new septic system or a commercial property manager seeking reliable excavation work, hiring the wrong contractor can cause delays, stress, and expensive do-overs.
You deserve a partner who takes your project seriously and gets it right the first time.
You deserve a partner who takes your project as seriously as you do.
Why Clients Choose Us
20+ years of experience in septic system installation and excavation
Licensed, insured, and personally involved in every job
Full-service expertise: septic installation, excavation, grading, utilities, and site prep
Septic system installation specialists—done to code, done right the first time
Fully Licensed C-8 Concrete Contractor, General Class A Contractor, and General Engineering Contractor, with PG&E certification for underground electrical installations—ensuring your project meets the highest standards in California construction
Here’s How It Works
Schedule Your Free Quote
We visit the site, assess your needs, and provide a detailed plan for your septic system or excavation project.
Approve Your Project Scope
You’ll receive a custom timeline, materials, and expert guidance to ensure your system is installed right the first time.
We Show Up & Deliver
Clear communication. Quality results. No loose ends.
Licensed for Excellence
David Major General Engineering is fully licensed as a C-8 Concrete Contractor, General Class A Contractor, and General Engineering Contractor, with PG&E certification for underground electrical work. Our credentials reflect our commitment to delivering high-standard work, done right and to code.
What We Build

Septic System
Installation & Excavation
- Septic system installation, leach line installation, and drainage solutions
- PG&E certified underground
electrical installation
- Site clearing, grading, trenching,
foundation prep

Concrete Services
- Foundations, driveways, patios,
retaining walls, curbs
- Decorative finishes: stamped, colored, exposed aggregate, broom finish
Ready for Reliable Septic Installation or Excavation?
Whether you need septic system installation, excavation, or utility work, we’re the team that gets it done right.
Areas We Serve
We handle commercial concrete projects in:
Northern California
El Dorado County
Sacramento County
Placer County
and surrounding areas
Our crew is familiar with regional code requirements, weather conditions, and elevation issues — and we plan accordingly.