A fire late Thursday damaged a Winslow home and remains under investigation, a fire official said. No one was home when the fire at 42 West Palmer Road was reported just after 7 p.m., Chief Mike Murphy of the Winslow Fire Department said in a phone call Friday morning. Firefighters from Albion, China, Fairfield, Sidney, Vassalboro and Waterville also responded to the blaze, Murphy said. West Palmer Road is a dead-end road off South Reynolds Road, about 2 miles south of the China Road, Route 137, and about 1 mile north of the Vassalboro town line. “It couldn’t have gone any better, for the distance and where it was,” Murphy said.