Built Below
The Surface.
Solutions That Last Above It.
Union commercial diving and marine construction — serving ports, bridges, dams, and critical infrastructure throughout the Mid-Atlantic & Northeast.
Who We Are
SUBCON is a diver-led, union commercial diving and marine construction company. We work on the underwater structures that keep critical infrastructure standing — bridges, piers, dams, ports, and power facilities across the Mid-Atlantic and Northeast.
About SubConClients We Serve
- Ports & Marine Terminals
- Power Generation & Nuclear
- Municipal & Government
- Industrial Waterfronts
- Bridges, Dams & Infrastructure
Core Services
Pile Encasements
Extend structure life with composite encasement systems.
Structural Steel Repair
Subaqueous steel repair for bridges, piers, and bulkheads.
Underwater Welding
Certified wet and dry welding below the waterline.
Marine Construction
Piers, docks, bulkheads, and waterfront infrastructure.
Safety Driven
Safety is the product of preparation.
Proven Experience
Decades of success in challenging environments.
Responsive & Reliable
We mobilize quickly and deliver on schedule and on budget.
Diver-Led Leadership
Operated by working commercial divers who understand the realities of marine construction.
Where We Work
Mid-Atlantic & Northeast Coverage
Based in Newfield, NJ — deployed across the region wherever the work demands.