Ten fire engines and two fire rescue units, around 78 firefighters, were called to flooding caused by a burst water main in Eversholt Street, Euston.
Twenty-one properties were affected by flooding, ranging from half a metre to three metres deep.
Six residents were rescued by water rescue crews and 34 residents were led to safety by firefighters. Crews worked to pump water away from the affected properties.
The Brigade has a range of equipment which can be used to help rescue people trapped by flood water, pump water away and protect properties. Some of the Brigade's fire rescue units are equipped with water rescue equipment such as inflatable rescue boats. The Brigade also has a number of high volume pumps stationed at strategic locations across the capital. These can be used to pump large amounts of water away from flooded areas.
The Brigade was called at 0611 and the incident was over for firefighters by 1158. Fire crews from Soho, Islington, Kentish Town, Paddington and surrounding fire stations attended the incident.