Even if it is common, they would have a hard time matching the color
because of the wear. You might be able to cut out a small piece of the
carpeting that is hidden, like in a closet, and patch it that way. For
five inches, I would do it yourself. You should be able to get some
double stick tape. Check with a local carpet installer. I am sure they
could advise you.

Merry Christmas
Pat