Aluminum boat welding

[Dsj123]

Looking to get my Jon boat repaired. There is 1 crack on each corner where transom and gunnel welds are. It’s along where the aluminum plate meets in the corner. Does anyone have a good repair ideas to take to a shop. I feel if I get them to clean up and re weld it will crack again.

Located outside Barrie but travelling to a good aluminum fabrication place to get the job done correctly wouldn’t be an issue

[4d277]

Alumifab on essa Rd