CSLB #1085562 — Class A / HAZ — Active

Heavy Civil
Construction

Underground utilities, structural concrete, water/wastewater, bridges, and specialty piping for public agencies and general contractors across the Bay Area.

Class A / HAZ
General Engineering
Since 2021
Established
40+ Years
Collective Experience
Bay Area
Service Region
Union Contractor — Signatory to Operating Engineers Local 3, Carpenters, and Laborers

Core Capabilities

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Underground Utilities

Water, sewer, storm drain, and dry utility installation and rehabilitation for public agencies and private developers.

→ See project photo
Underground utility excavation in San Francisco
Underground Utilities
Urban utility excavation — San Francisco

Water & Wastewater

Treatment plant construction, pump station upgrades, and facility improvements for municipal water and wastewater agencies.

→ See project photo
Pipeline installation in water/wastewater tunnel
Water & Wastewater
Pipeline installation — treatment facility

Mechanical Process Piping

Large diameter pipe, valves, and mechanical equipment installation for water treatment, industrial, and utility facilities.

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Crew installing large valve and pipe assembly
Mechanical Process Piping
Valve and pipe assembly installation

Jet Fuel Piping

Aviation fuel line installation and distribution systems for airport facilities requiring precision and safety compliance.

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Specialty piping and excavation work
Jet Fuel Piping
Specialty pipeline installation

Earthwork

Mass excavation, grading, backfill, and site preparation for commercial, industrial, and public infrastructure projects.

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Night shift earthwork and excavation
Earthwork
Night shift excavation operations

Structural Concrete

Foundations, retaining walls, cast-in-place and precast structures for civil infrastructure and facility construction.

→ See project photo
Crane setting precast concrete structure
Structural Concrete
Precast structure installation

Emergency Services

Rapid-response construction for utility failures, infrastructure emergencies, and disaster recovery — available 24/7.

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GSW Construction emergency response
Emergency Services
24/7 rapid response

Bridges

Bridge construction, rehabilitation, and structural repairs including foundations, columns, decks, and seismic retrofits.

→ See project photo
Bridge column formwork construction
Bridges
Bridge column formwork

Certifications & Qualifications

CSLB #1085562
Class A / HAZ
Active through 01/2028
CA Small Business
Certification #2026697
State of California
SF Micro-LBE
CMD #01231000511
City of San Francisco
ISNetworld
Safety Prequalification
#400-437789
Golden Shovel
Certified Contractor
Safety Program

Ready to Build?

Office
101 The Embarcadero, Suite 123
San Francisco, CA
Service Area
Greater San Francisco Bay Area
Serving
Public utility agencies, private utilities,
and general contractors

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