Aluminum welding
Aluminum welding in San Diego, done to marine spec.
Aluminum is unforgiving — it hides cracks, warps under heat, and punishes sloppy technique. Our welders run TIG and MIG aluminum daily on marine-grade 5086 and 6061 alloys, where a bad weld doesn't just look wrong, it sinks.
That shipyard discipline carries into every aluminum job we take: boat hulls and transoms, trailers and ramps, fuel and water tanks, architectural work, and one-off repairs at the shop or at your site.
Aluminum work we handle
- Boat hulls, transoms, and decks — crack repair and reinforcement
- Trailers and ramps — frames, cross-members, gates
- Fuel and water tanks — repair and new fabrication
- Marine-grade 5086/6061 structural work
- TIG welding for thin-wall and cosmetic-critical parts
- Mobile aluminum welding at your site or slip
Why aluminum comes to Nautilus
GTAW (TIG) and GMAW (MIG) qualified procedures
Daily experience on marine alloys, not occasional side work
In-shop precision or mobile response — your choice
Documented, inspection-ready welds
Frequently asked questions
Can you TIG weld thin aluminum?+
Yes — TIG is our go-to for thin-wall and cosmetic-critical aluminum, from tanks to trim. We match the process to the metal and the job.
Do you repair aluminum boat cracks?+
Constantly. Hull cracks, transom repairs, and deck work to marine spec are core work for us — see our marine welding page or send a photo for an estimate.