Marine welding
Marine welding & ship repair in San Diego.
From U.S. Navy ships to research vessels, San Diego's fleet trusts Nautilus Industrial Marine for welding that holds up at sea. We're a ship-repair and marine-fabrication shop on Main Street in Chula Vista, with welders qualified to NAVSEA procedures, serving the entire San Diego Bay waterfront — dockside, in the yard, or in our fabrication shop.
If it's aluminum, steel, or stainless and it goes on the water, we weld it: hulls, decks, watertight doors and hatches, railings, tanks, and structural repairs — to marine spec, documented, and inspection-ready.
Marine welding & repair services
- Ship repair & modernization — steel and aluminum structural repair, to qualified procedures
- Aluminum boat welding — hull cracks, transoms, decks, T-tops, fuel tanks
- Yacht & private vessel repair — structural fixes, custom stainless, dockside service
- Watertight door & hatch fabrication — built and fitted to spec
- Dockside & on-site welding — we come to your slip or yard
- Pipe & systems welding — marine piping, to qualified procedures
Trusted by the toughest client in the harbor — the U.S. Navy
Our welders are qualified to NAVSEA procedures across FCAW, GMAW, and GTAW. Past work includes ship's-force repairs aboard USS Higgins and eight years on Columbia University's R/V Marcus G. Langseth. The same rigor goes into every commercial boat, workboat, and yacht job we take.
NAVSEA-qualified procedures and documentation
Dockside mobile rigs and full fabrication shop
Aluminum, steel, and stainless — hull to hardware
Serving the entire San Diego Bay waterfront
Frequently asked questions
Can you repair a cracked aluminum boat hull?
Yes — cracked hulls, transoms, and decks are among our most common jobs. TIG and MIG aluminum to marine spec. Send a photo for a fast estimate.
Do you weld dockside or only in your shop?
Both. We bring mobile rigs to your slip or yard for dockside repairs, and handle larger fabrication in-shop.
Are your welders qualified to NAVSEA procedures?
Yes. Our welders are qualified to NAVSEA welding procedures across SMAW, FCAW, GMAW, GTAW, and GTAW pipe. Primes and agencies can request our procedure and qualification list from [email protected].
Do you work on yachts and private boats?
Yes. The same welders who work on Navy hulls — qualified to NAVSEA procedures — handle yacht and private vessel repairs: structural aluminum and steel, custom stainless, and dockside fixes at your slip.