Horizon Underground Llc

✅ CLEAR — Active License License #1149574
A — General EngineeringD09 — D09
Location
License Issued
01/27/2026
Expiration
01/31/2028
Workers' Comp
Workers' Compensation Insurance
Contractor Bond
$25,000 — Merchants Bonding Company (Mutual)

Services

Road construction
Bridge building
Dam construction
Utility installation
Grading & earthwork
Paving
Pipeline installation
Sewer & water systems
Land clearing
Trenching
D09 services
D09 installation
D09 repair
D09 maintenance
D09 consultation

Services estimated based on license classification. Claimed businesses can customize their service list.

About the A — General Engineering License

A General Engineering (Class A) license in California authorizes contractors to perform work requiring specialized engineering knowledge and skill. This includes projects like roads, highways, bridges, dams, pipelines, irrigation systems, and utility infrastructure. General Engineering contractors typically work on large-scale civil projects that shape communities and infrastructure. California requires this license for any project where more than two unrelated building trades are used in a fixed work requiring specialized engineering. When hiring a Class A contractor, consumers should verify they have adequate insurance and bonding for the project scope, as these projects often involve significant investment and safety considerations. The CSLB oversees all Class A licensees to ensure public safety and professional standards.

About the D09 — D09 License

A D09 (D09) licensed contractor in California is authorized to perform specialized work in their trade area. California's Contractors State License Board (CSLB) requires contractors in this classification to meet education, experience, and examination requirements before receiving their license. When hiring a D09 contractor, always verify their license is active and in CLEAR status, confirm they carry adequate insurance, and get a detailed written contract before work begins. Licensed contractors must maintain a $25,000 contractor bond and comply with all applicable building codes and regulations.

💡 Tips for Hiring a General Engineering Contractor

  1. Get multiple bids for large engineering projects
  2. Verify the contractor carries adequate liability insurance for the project scope
  3. Ask for references from similar completed projects
  4. Ensure all necessary permits are pulled before work begins
  5. Get a detailed written contract with project milestones and payment schedule

✅ Verify This License

Always verify contractor licensing directly with the Contractors State License Board (CSLB) before hiring. You can look up license #1149574 to confirm it is active and check for any complaints or disciplinary actions.

Check on CSLB.ca.gov →

🏢 Are you Horizon Underground Llc?

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Frequently Asked Questions

What does a Class A General Engineering license cover in California?

A Class A license covers projects requiring specialized engineering knowledge including roads, bridges, dams, pipelines, utilities, and other infrastructure work. It does not cover general building construction, which requires a Class B license.

Do I need a licensed General Engineering contractor?

Yes. California law requires any contractor performing engineering work valued at $500 or more to hold a valid CSLB license. Hiring an unlicensed contractor puts you at risk and may void your ability to file complaints with the CSLB.

Do I need a licensed D09 contractor in California?

Yes. California law requires a licensed contractor for any d09 work valued at $500 or more. Licensed contractors must pass exams, maintain bonding, and carry insurance. Hiring unlicensed contractors puts you at risk.

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