The fire broke out around 7:30 p.m. in a single-family Victorian home being renovated at Mountain Way and Windsor Place, the department said.
It instantly went to two alarms, with fire in the walls of the 2½-story, wood-frame home.
Firefighters had the blaze under control within a half hour. No injuries were reported.
Fire Chief Dennis Gentile was the incident commander. His squad was assisted by firefighters from East Rutherford and Wallington.
Click here to follow Daily Voice Cliffside Park-Edgewater and receive free news updates.