Flames could be seen coming from the roof of a home on Carriage Lane in South Florence Friday night.
The fire started just before 8 p.m.
Two people were inside, but they managed to get out and call 911. Florence firefighters say smoke detectors alerted the residents to the fire, which started in a rear exterior porch area.
Florence Police directed traffic around the fire until crews were able to get it contained and under control.
A cause of the fire has not been released.