Firefighters were called to a home in the 100 block of Dover Meadow Close Southeast at around 9 a.m.
Crews arrived to find fire and smoke coming from a bedroom window of the bungalow.
Acting District Chief Shaun Leonard said a mother and her five children were able to make it out of the home safely before firefighters arrived.
CFD spokesperson Carol Henke told Global News an initial investigation determined the fire started when a candle was knocked over. The candle was in one of the home’s bedrooms.
Henke credited a teenager in the home with helping keep the fire contained to the bedroom where it originated by closing the door after he spotted the flames.
Damage from the fire was kept to the bedroom, but Henke said the rest of the house suffered smoke damage.
The Calgary Fire Department said in a release Thursday afternoon that it appears the smoke alarms in the home were not functioning properly.
Fire officials recommend people test their smoke alarms once a month. This can be done by pressing the alarm’s test button. Batteries should be replaced once a year, according to the CFD.
No injuries were reported.