The fire at the Excelsior Cleaners at 1320 W Boston Post Road in the Ferndale Shopping Center, began around 3:15 p.m. Wednesday, said the Town of Mamaroneck Police.
At least 40 firefighters from local departments were on hand helping battle the flames that were reportedly contained to the one building.
Boston Post Road is closed between Richbell Road and Weaver Street. As of 5:15 p.m., that roadway remained closed, police said.
Motorists are asked to avoid the area as Mamaroneck firefighters clear the area.
This is a developing story. Check back to Daily Voice for updates.
Click here to follow Daily Voice Mount Pleasant and receive free news updates.