Location and Projects
S&L Underground Construction
Based in Bonners Ferry, Idaho, S&L Underground, Inc. has been serving North Idaho and the Inland Northwest region for nearly two decades. The company focuses on excavation and underground utility construction, offering services that include water and sewer line installation, site development, grading, road construction, and trenching. S&L Underground, Inc. handles commercial, municipal, and residential projects, providing expertise in public infrastructure and private land development. The firm is equipped for large-scale utility installations and has experience with rural and urban environments throughout Boundary County and surrounding areas. S&L Underground, Inc. utilizes modern excavation techniques and maintains a fleet of specialized equipment to manage complex underground and site preparation projects.
S&L Underground, Inc Services
S&L Underground, Inc Contact Information
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S&L Underground, Inc License info
Verified License
| License # | RCE-7377 |
| Status | Active |
| State | Idaho |
| Type | General Contractor Registration |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for S&L Underground, Inc at the State of Idaho Bureau Of Occupational Licenses.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | SLUNDI*981CF |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for S&L Underground, Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 018721 |
| Status | Active |
| State | Idaho |
- When BuildZoom last verified this license, it had an expiration date of May, 2026. Check the current license status of S&L Underground, Inc with the Idaho Division of Building Safety
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PLB-EPH-7712 |
| Status | Active |
| State | Idaho |
| Type | Plumbing Unlicensed |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of S&L Underground, Inc with the Idaho Division of Building Safety
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | HVC-C-48 |
| Status | Active |
| State | Idaho |
- BuildZoom has not verified this license since October, 2024.
Verify this license's status for S&L Underground, Inc at the Idaho Division of Building Safety.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 46422 |
| Status | Active |
| State | North Dakota |
| Type | Corporation |
| Class | Class A - Unlimited contract amount |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of S&L Underground, Inc with the North Dakota Secretary of State
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Insured
| Insurer | Travelers Indemnity Company Th |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Berkley Regional Ins Co BERK |
| Bond Value | $12,000 |