Fire engulfed Trans Auto Dynamics in Gainesville on Monday evening, sending plumes of smoke in the air that could be seen for miles.
Firefighters were called to the transmission repair business at 7510 Logos Way at 7:03 p.m., arriving to find the building heavily involved in flames.
Crews called a second alarm as heavy fire caused the roof to collapse, Prince William fire and rescue said in a Facebook post.
Defensive operations kept the fire in check and there were no injuries, fire officials said.
The Prince William fire marshal's office is investigating the cause of the blaze.