Can you add to a carport after it is already installed? Yes. There will be an extra service charge and the original carport must be an American Carport. By Ritu|2021-08-18T03:57:21-07:00August 17, 2021|Faq|0 Comments Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkXingEmail About the Author: Ritu Leave A Comment Cancel replyComment Save my name, email, and website in this browser for the next time I comment.