Neighbours alerted emergency services and when Fire and Rescue NSW (FRNSW) crews arrived at the Barremma Road home about 8.30am smoke was billowing from the roof.
They knocked on the door and when no-one replied, a crew wearing breathing apparatus entered the home and began a search for occupants, finding one resident requiring immediate medical treatment.
The crew contained the flames and conducted a thorough search for fire inside the wall and roof cavities.
The cause of the fire is not yet known but firefighters are concerned the home was not fitted with a smoke alarm.
FRNSW is reminding the public to ensure working smoke alarms are installed in their homes this winter.
Residents can book a home fire safety visit from their local fire crew by visiting the FRNSW website: https://www.fire.nsw.gov.au/visits
Firefighters will inspect your home, provide safety advice and fit smoke alarms, free of charge, if necessary.
Rescued from burning home without smoke alarms
FIREFIGHTERS rescued a person from a burning home in Lakemba this morning.