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.