I live in a condo. My living room floor squeaks. The floor has carpet over a concrete floor that was poured over a plywood sub-floor. Because I am on the second floor, I do not have access to my floor joists. How can I eliminate the squeaking? Thank you.

A few questions first before e get to the fixing part. Do you own or lease this condo and is there a management firm that runs the operation? Have you read your covenants to see who owns what parts of what units, the joists may not be your property