Liverpool SES crews worked into the early hours of the morning and will be out again at first light attending to damage caused by fierce winds overnight.
The unit received 62 requests for assistance as wind gusts of up to 83km/h were felt across Liverpool. There were multiple reports of fallen trees on roads and cars.
"If you have lodged a request for assistance with the SES, we ask for your patience as we work through outstanding requests," Liverpool SES posted on Facebook.
"If you have lodged a request, but no longer require our help, please call 132500 to cancel the job.
"Residents are being advised to secure loose items around their house and move their vehicles away from under trees."
Sydney is expected to be windy and wet again on Monday.
The forecast is for up to 10 millimetres of rain, southerly winds up to 45km/h and a maximum temperature of 15 degrees.
The rain is expected to clear during the week, with Thursday tipped to reach 22C ahead of a wet weekend with up to 25 millimetres of rain on Saturday and up to 15 millimetres on Sunday.