At approximately 12 noon on Thursday, Tisbury firefighters responded to a call of flames coming from the service garage at Brickstone Construction, 461 Edgartown-Vineyard Haven Road.
The fire was quickly contained but thick smoke was still billowing out of the building at 12:30. The building had been evacuated.
Tisbury Fire Chief John Schilling said the fire was accidental, and specific cause is still under investigation. There were no injuries reported.
The Oak Bluffs Fire/EMS Department and Edgartown Fire Department provided mutual aid at the scene.
Because the fire hydrants were on the opposite side of Edgartown-Vineyard Haven Road, the road was closed and traffic was detoured for over an hour.