Rebecca Lee thought it must have been a mistake when her 16-year-old daughter said she saw a man looking through the bedroom window of their Kooringal home one night last week.

"My daughter's bedroom window is at the front of the house, but we are quite far back off the road so you really have to go off track to wind up at the front by accident," she said.

"I work night shifts, so I wasn't there when it happened the first time and I thought she just meant they were looking in from the nature strip, but then she said it was right at the window and that's when I started to worry."

The incident is alleged to have occurred near White Avenue in Kooringal.

Ms Lee said they were on guard since the first sighting of the man, but the threat stepped up a notch last Thursday night when her daughter said he returned with a torch.

"I was working again, and it was at least lucky she had a friend over for support, but she said the man was looking into the window of her room again and using a torch to see in," she said.

"That was after midnight too, and so I called the police.

"They said the best thing we could do was close the blinds which we obviously do, and to call Triple Zero next time."

Due to concerns of leaving her daughter alone since the incidents, Ms Lee has had to stop working night shifts.

"I'm worried he'll come back and I don't want her to be alone if that happens," she said.

The daughter's friend, who was in the room at the time of the incident, said they were able to get a brief description of the man, describing him as being in his late 60s, bald and thin, and walking a small white dog.

"That's the weird part too, it isn't normal to walk a dog after midnight," Ms Lee said.

Riverina Police District Inspector John Aichinger shared advice for those experiencing a similar threat.

"Calling Triple Zero is the best thing you can do," he said.

"For a lot of incidents where there are reports of someone prowling, by the time police get there, they're gone so it's hard to catch anyone in the act."

Ms Lee said she hoped to get the word out to others in the community to be aware.

"I just don't want anyone getting hurt or scared by this, so hopefully if we all keep an eye out we can catch whoever it is," she said.

"I've now had a small security system installed too."

Anyone with concerns of someone prowling their home or neighbourhood is urged to call Triple Zero in an emergency, or Crime Stoppers on 1800 333 000.