It happened over the weekend at Joel's estate on Centre Island Road in Centre Island.
Authorities say the intruders damaged 12 motorcycles and a home office.
No one was home at the time.
The legendary singer called police when he discovered the break-in.
Authorities say no property was reported stolen.
The investigation is ongoing, and detectives request anyone with information contact Nassau County Crime Stoppers at 1-800-244-TIPS.
All callers will remain anonymous.