THE SES got 100 calls from residents around Blacktown and Mount Druitt whose houses were affected by heavy rain and storms over the four days from last Thursday.
Most calls for help were related to leaking roofs and fallen trees on houses and roads in the two areas.
Shalvey was the worst affected with 18 reports, followed by Whalan (10) and Lethbridge Park (9).
SES Mount Druitt controller Peter Lalor said 30 officers from his unit, The Hills and Canada Bay responded to 60 calls for help from last Thursday to Sunday morning.
He said three homes were still without power on Monday, March 31.
His officers attended to leaking roofs and fallen trees on houses, garages and roads.
He called on residents with fallen trees in their backyards to contact private contractors, saying his men would be very busy attending to more urgent matters.
SES Blacktown controller Gary Fry said his area had not been as badly affected as Mount Druitt over the four days from last Thursday.
He said most calls related to floods threatening properties, leaking roofs and fallen trees.
Mr Fry said affected areas were Doonside, Riverstone, Quakers Hill, Blacktown, Marsden Park, Toongabbie, Kings Langley and Riverstone.
He said some of the flood-affected roads were Riverstone Parade and Piccadilly Street at Riverstone and flood-threatened properties were in Reservoir Road at Blacktown, Griffin Place at Doonside, Ellam Drive at Seven Hills and Ironbark Crescent at Blacktown.
Mr Fry said his officers had completed 20 storm-damage jobs over the past four days.
He and Mr Lalor said they expect more jobs if the rain and storms return over the next few days.