The incident happened around 7:30 Saturday morning at the Bank of America on Merrick Road in Lynbrook.
The two men who were working for Hewlett Window Cleaners were preparing to wash the building's windows when a gust of wind blew into the two men holding the 40' washing pole.
58-year-old Nicholas Genovese of Staten Island was holding the pole at the top of a ladder while 64-year-old Alan Weinberg of Long Beach was holding it on the ground.
The wind blew the pole into a power line causing serious injury to both men.
Weinberg was in cardiac arrest and paramedics performed CPR to regain a heartbeat.
He was rushed to South Nassau Communities Hospital where he was stabilized and then transferred to Nassau University Medical Center's Burn Unit for treatment of second and third degree burns to his hands and feet.
He is listed in critical condition.
Genovese was transported directly to Nassau University Medical Center where he was admitted to the Burn Unit for treatment of second and third degree burns.
He is listed in stable condition.