Marine welding
Marine welding & ship repair in San Diego.
From the U.S. Navy to Scripps research vessels, San Diego's fleet trusts Nautilus Industrial Marine for welding that holds up at sea. We're a NAVSEA-certified ship-repair and marine-fabrication shop on Main Street in Chula Vista, 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 NAVSEA standards
- 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 certified procedures
Certified for the toughest client in the harbor — the U.S. Navy
Our welders qualify to FCAW, GMAW, and GTAW procedures and work to federal and marine standards. Past work includes USS Boxer and the R/V Marcus G. Langseth. The same rigor goes into every commercial boat, workboat, and yacht job we take.
NAVSEA-standard 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 welds Navy/NAVSEA certified?+
Our procedures and welders are qualified to marine and federal standards, and we regularly perform NAVSEA-standard ship-repair work.
Do you work on yachts and private boats?+
Yes. The same certified welders who work on Navy hulls handle yacht and private vessel repairs — structural aluminum and steel, custom stainless, and dockside fixes at your slip.