Calls for more resources to extend facilities at Ballarat Child and Family Services were made earlier this week after it was revealed there were a lack of government-funded contact centres.

Parents who have moved away from Ballarat are having to travel long distances to see their children under supervision because there is no contact centre nearby.

Some children are also being affected, having to travel two to three hours to spend time with their mum or dad.

Ballarat Child and Family Services family violence and Commonwealth program manager Michael Brandenburg said this was causing increased demand at its children's contact centre.

He said parents were travelling from the South Australian border and within 200km of Ballarat to see their children.

He called for more financial resources so the centre could increase its supervised visits to include a midweek service to help meet the demand. The centre currently offers a weekend service only.

"Our resources don't support us at the moment,'' Mr Brandenburg said.

"I think the demand is increasing and I don't think that will slow down. It will lead to a blow-out in our waiting lists. We are looking for resources to extend our facility.''

Mr Brandenburg said parents were waiting three to four months to see their children and there was nothing the centre could do to reduce that.

He said the wait could be damaging to children and their parents.

"Having to travel two to three hours is hard for children. It raises lots of issues for their wellbeing and parent's wellbeing. We have to extend our services.''

Children's contact services allow separated parents with a history of conflict to visit or changeover their children without seeing each other.

The Age revealed this week that suburban and country centres had a waiting list of between three and six months, while a small number of centres had no waiting.

It reported the government provided $15 million a year to fund 65 centres around Australia and was working with the sector to try to reduce waiting times.