Emergency service crews worked into the night to clean-up widespread damage from Thursday's wild weather across the Canberra region.
Damaging wind gusts of 82 kilometres per hour were recorded in Canberra, while in Goulburn gusts topped 102 kph, as a strong cold front moved across the ACT and surrounding region.
The State Emergency Service received 135 calls for help in the ACT, and more than 70 in the New South Wales Southern Highlands and Queanbeyan.
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SES spokesman Tony Graham says most calls for help were for branches and trees across roads and pathways.
"The most severe damage was one job reported at Duntroon in the suburb of Campbell at one of the Defence homes there," he said.
"It appears that three or four trees may have fallen on the one property and we've had crews there all afternoon.
"There has been some significant damage [to the house] and it will be uninhabitable for some time."
Mr Graham says at least three cars were also damaged.
"One on Wentworth Ave at Kingston, one in Amaroo and another one in Cook, but there may be more," he said.
"Trees that have fallen down either on a roadway, onto footpaths or fences have been the bulk of the works we have been called to.
"That means our chainsaw crews have been working really hard all day."
Fallen trees caused power outages across the capital and Queanbeyan, including in the suburbs of Ainslie, Dickson, Downer, Watson, Hume, Tralee, Hughes, Curtin, Melba and Kaleen.
Tidbinbilla Nature Reserve was also closed due to the high winds.
In New South Wales, with wind gusts of up to 100 kilometres an hour predicted for a vast swathe of the state and extreme to severe fire conditions.
© ABC 2013
17:37 EDT Much of western New South Wales has begun a heat wave, reaching at least five degrees above average for at least five days, averaging a maximum of 35 degrees or more.