Firefighters were called to the fire on Anstridge Road just after 6pm on Wednesday, November 26.
Half of the ground floor, the windows and the front of a mid-terraced house were damaged by the fire.
A woman left the building before the Brigade arrived and was taken to hospital by London Ambulance Service crews.
The fire was under control by 7.45pm.
The fire is believed to have been accidental and caused by candles placed too close to combustible items.
Firefighters have since issued a reminder of their candle safety advice.
25 firefighters from Sidcup, Lee Green, Eltham and Bexley fire stations to the scene.
A London Fire Brigade spokesperson said: “Candles are one of the most common causes of fire.
“It’s really important that you never leave a candle unattended and keep them away from anything else that can easily catch alight.
“Consider using battery-powered, flameless LED candles instead, which are safe even if you fall asleep.
“Whilst they may cost more upfront than traditional candles, they will last considerably longer, giving you better value for money.
“If you do choose to use traditional candles ensure you place them in a heat-resistant holder, on a stable surface where they won’t be knocked over and away from materials that could catch fire.
“Never leave them unattended around your home, take particular care with children and pets and blow them out properly before you go to bed.”
