The fire was called in at 4:23 a.m., and the roof of the two-story, woodframe home was fully engulfed when firefighters arrived about 10 minutes later, according to Wellington Fire Chief Michael Wetherbee.
A man and a woman and their adult son were awoken by smoke detectors and outside the home when firefighters arrived, Wetherbee said.
Firefighters needed about an hour to contain the blaze and extinguished it between 8:30 and 9 a.m. The fire began in a wall on the first and second floors.
The cause of the fire remains under investigation. Wetherbee said it “gutted” the second floor and there is substantial water damage throughout the house.
The family is staying with relatives.