compartment door surface lifting

[Little Rhody]

Hi All, We purachased our Montana Sept 07 and love it, but our basement door's outer skin have developed large area bubbles, as if unlaminating in areas . We have the Gel Coat. Don't know if they gel the doors. I'm pretty sure Keystone won't want to help past one year ownership. Do I take it to a fiber glass shop for repair, or is there a remedy that I can tackle? Thanks.