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.
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