Crews have the large fire at a Roselle Park flooring company under control on Friday morning.
News 12 is told the building makes resin for floors.
Crews responded to the fire on Valley Road near the corner of Westfield Avenue around 4:45 p.m. Thursday.
Mayor Joseph Signorello Jr. says that thankfully, there have been no reports of any injuries so far.
Mutual aid from surrounding towns stayed through the night to get the fire under control.
Thursday coverage
The fire did not spread to any other buildings in this residential area.
Multiple homes were evacuated as a safety precaution. Some also lost power for a time, but the lights are now back on.
Roselle Park police asked residents to keep windows and doors closed because of poor air quality from the heavy smoke. There were reports of strong odors from the chemicals.
The mayor added that crews are going to bring in heavy equipment to safely address any remaining concerns with the building.
The cause of the fire was not immediatley known.