David Myer and his wife Skye Debomford live under a bridge in Parramatta in Sydney's west with their pet puppy and kitten.

Living rough is unsurprisingly tough, and Mr Myer has to build trenches to stop water run-off encroaching on where they sleep.

Accessing basic services such as a doctor's appointment, legal aid, and even getting a haircut, can be near impossible.

"I can't afford a lot of this stuff because I'm always buying things like blankets, clothes," Mr Myer said.

But he and Ms Debomford were able to link up with a variety of homelessness support services at an event in Parramatta on Monday.

Hosted by Western Sydney Homeless Connect and about 50 other organisations, the annual event offers free health check-ups, employment services and Centrelink assistance.

The couple's beloved animals, Tilly and Bear, were even given a vet check-up.

The event is also designed to help people at risk of becoming homeless.

Susan Goldie from the Saint Vincent de Paul Society said nearly one third of families in Sydney's west spent more than 30 per cent of their income on rent, compared to a city-wide average of about 25 per cent.

"Western Sydney across pretty much every metric has higher-than-average drivers of disadvantage," Ms Goldie said.

"Whether it's about rental stress, whether it's about the experience of domestic violence, Western Sydney is doing it tougher than other parts of Sydney."

Demand for services growing

Haircuts are often forgotten luxuries for the homeless. ( ABC News: Mazoe Ford )

Stacy Blythe from Western Sydney University was supervising student nurses and doctors as they provided free health check-ups for the homeless people attending the event.

She said demand for their services was growing.

"Over the last four years that I've been here I've noticed there have been more and more people, and more young families, who've been seeking assistance," Dr Blythe said.

But for some people, the event is about more than just receiving help.

Denise Xidias from Hair Aid offered free haircuts at the event.

She said when people were struggling to pay bills, things like haircuts were often forgotten.

"When you cut someone's hair, when you give them that feeling of being presentable, they can maybe possibly get a job or go to an interview," Ms Xidias said.

"The simplest thing we can do as a community and as a human race is give them their dignity."

Eddie Moussa (right) relishes the chance to connect with others at the homelessness event. ( ABC News: Mazoe Ford )

And Eddie Moussa said the event provided a good chance to connect with others.

"People talk to you like they know you, and sort of from the heart," he said.

"I can't associate with people because I haven't been outside for a long time … no one wants to associate," he said.

Western Sydney Homeless Connect's event coincided with the beginning of Homelessness Week 2018.