PEOPLE living in a maisonette in Harlington escaped without injury after their house was severely damaged by fire .
The staircase and roof of the first floor home in The Crescent were destroyed in the fire on Monday night, which also damaged the roof of the neighbouring property.
Hayes fire station watch manager Helen De Meyer said: "The ceiling of the maisonette had burned through before we got there so crews extinguished the fire in the stairwell and tackled the roof blaze from within.
"We did not hear a smoke alarm at the scene. A working smoke alarm is essential as it provides vital early warning and extra time to escape if there is a fire. Every home should have at least one working smoke alarm on every floor.
"The occupants did the right thing by getting out and staying out of the building."
Four fire engines, two from Hayes fire station and one each from Feltham and Heathrow fire stations, went to the scene in The Crescent. Twenty one firefighters and officers tackled the blaze but no-one was injured.
The fire started at 8.32pm and was under control by 10.20pm.
The cause of the fire is under investigation by the police and the fire brigade.