Four fire engines and around 25 fire firefighters attended a fire in two flats in Ridsdale Road in Bromley.
Firefighters tackled a fire within a three storey block of flats, one flat on the first floor and one on the second floor were significantly damaged by the fire.
Part of the roof was also damaged including some solar panels, firefighters used PVStop - a specially designed light blocking coating to tackle emergencies involving solar panels.
When tackling fire involving solar panels, crews run the risk of receiving electric shocks as the current can travel down water jets and hoses.
PVStop, is a black liquid polymer coating designed to cover solar panels like a liquid tarpaulin. Stored in an extinguisher, it’s sprayed onto solar panels, or from the head of one of the Brigade’s aerial appliances which are often used in high-rise fires and for aerial water dousing.
Around 20 people evacuated the building before the Brigade arrived. The Brigade Control Office has received 26 calls about the fire.
The Brigade was called at 0958 and was under control by 1222. Fire crews from Beckenham, West Norwood and Woodside fire stations are at the scene.
The cause of the fire is under investigation.