Commercial Diving
Mixed-gas and deep-air diving, inspection, NDT, underwater welding and salvage — performed by our own crews of 30+ commercial divers.
Seaward Marine Corporation is an ADCI-member commercial diving contractor based in Norfolk, Virginia. Our mixed-gas and deep-air dive teams inspect, repair, weld and salvage piers, bridges, power-plant intakes, pipelines and vessels for the Navy, USACE and commercial owners along the East Coast.
Mixed-Gas & Deep-Air
ADCI/ACDE mixed-gas divers and rack operators for deep and extended-bottom-time work.
Bell & Chamber Support
Class II bell and on-site deck decompression chamber with certified chamber operators.
Inspection & NDT
Underwater inspection, video, thickness gauging and NDT; FHWA/NHI-trained bridge inspectors.
Welding & Burning
AWS D3.6 Class B wet welding, AWS D1.1 topside welding and underwater burning.
Salvage & Recovery
Vessel, barge and debris recovery, including 24/7 emergency response.
Structure Repair
Pile jacketing, concrete repair and cathodic-protection installation below the waterline.

Dive spreads built for the job
Self-performed with Seaward-owned equipment and crews, so mobilization, schedule and quality stay under one contract.
- Mixed-gas and surface-supplied air dive spreads
- Class II bell and deck decompression chamber
- Hot-water suits for cold and extended dives
- Underwater video, sonar and UT thickness gauges
- Hydraulic and pneumatic underwater tools
- Dive support from our own tugs and crew boats
Common questions
Need something not listed? Call (757) 558-3939 or send plans and specs through our RFQ form.
Is Seaward Marine Corporation an ADCI member?
Yes. We are a member of the Association of Diving Contractors International and dive to ADCI consensus standards, OSHA and USACE EM 385-1-1.
Do you perform mixed-gas diving?
Yes. Our ADCI/ACDE-certified mixed-gas divers and rack operators support deep and extended-duration dives, backed by a deck decompression chamber.
Can your divers weld underwater?
Yes. Our welders are qualified to AWS D3.6 Class B for wet welding and AWS D1.1 for topside structural welding.
Do you respond to diving emergencies?
Yes. Call our 24/7 line at (757) 558-3939 for salvage, damage assessment and emergency repairs.
24/7 Emergency Response
Salvage, damage assessment and emergency repairs — a crew is on call around the clock.


