A woman has been cut from her car by emergency services after part of the facade of a three-storey building collapsed in North Fremantle during strong winds.

The woman is believed to have been sitting in her car when bricks from the facade of the Matilda Bay Brewing Company fell down, trapping her.

Emergency services workers removed her from the car and she was taken to Royal Perth Hospital in an ambulance.

A St John ambulance spokeswoman said the woman, who is aged in her 30s, has suspected fractures but "was conscious and breathing".

Department of Fire and Emergency Services (DFES) district officer Craig Edmonds said the woman's injuries were serious and she was lucky to be alive.

"She's very lucky, I can't explain how she survived her injuries," he said.

Photographer Mark Evans, who was passing the building shortly after the bricks fell, said he believed gusty winds were to blame.

"The top of the roof facade on the building has come down in really strong winds," he said.

"It's an old, old building, maybe 100 years old, and it looks like the top part has just been blown off."

At least two cars were damaged when bricks fell from the Matilda Bay Brewing Company building. ( ABC News: Emily Piesse )

Isaac witnessed the incident from his nearby office.

"We were just sitting in our office doing a bit of work and just heard this loud scream followed by this thunderous clap and ran out to see what happened and this poor woman has been crushed in her car by the wall," he said.

"They were trying to claw the metal away but that didn't really work, so they had to cut open the door and then she got out and just started walking away, trying to process what had just happened."

A woman had to be cut out of the red car and was taken to hospital with serious injuries. ( ABC News: Manny Tesconi )

State buffeted by strong winds

A severe cold front is moving through the southern half of WA of today, bringing damaging winds.

A severe weather warning for damaging winds has been cancelled for the Perth metropolitan area and other parts of south-west WA, but remains in place for areas further east.