Sealed box grading
 

Is worth having sealed boxes graded? Any experience doing it that anyone can share?

I have a few valuable boxes but am not sure if it’s worth doing

Probably maximizes value from an unopened perspective. Not sure anyone cares about the grade as much as the opinion it's unopened.

you may want to check out Baseball Card Exchange

https://www.bbcexchange.com/authentication

Thanks guys!

Yeah, it's pretty much BBCE sealed or nothing. There may be some companies that will grade unopened boxes, but they're not Steve Hart and co. Which means that even if graded, they won't sell for a premium.

Depending on value of the packs, it might be worth it to have the packs sent individually to PSA for slabbing, but that would be depending on their price and turnaround times for the items you want to own/sell. PSA takes them in, mails them to BBCE for Steve Hart to confirm they're unopened, then he mails them back to California for grading and slabbing.