The reward has been doubled to help to find a Dix Hills dad that has been missing since June.
The award for information on the whereabouts of electrician Robert Mayer has gone from $5,000 to $10,000.
Mayer never returned from a job in Brooklyn on June 14.
Mayer was last seen at Arrow scrap yard, a West Babylon junk yard. However, his car was left at the Deer Park train station.