Supporters of a young girl, who was seriously injured by an electric shock at a public housing property, say much more needs to be done to help with her high-care needs.

The West Australian Government has agreed to provide the family of Denishar Woods an act of grace payment to help buy a modified vehicle that can carry a wheelchair.

The 11-year-old suffered a near-fatal electric shock from a garden tap when she tried to turn off a hose at her family's Department of Housing home in Beldon in Perth's north in March, causing severe brain injuries.

Her mother, Lacey Harrison, was also injured as she tried to drag her daughter out of a pool of electrified water.

The family is suing the Government, and could be eligible for millions of dollars in compensation if the Department of Housing is found to have failed to provide the family with safe and adequate housing.

The Government has not revealed the exact amount of the act of grace payment, but it will help the family cover the $100,000 cost of a modified vehicle, allowing for easy wheelchair transportation.

Denishar potentially faces a lifetime of care for her injuries. ( Supplied )

Housing Minister Peter Tinley said the State Government was continuing to provide a wide range of support services to the family.

"Specific processes and protocols are in place to deal with situations like these where tragic accidents occur," he said.

"It is unfortunate, but unavoidable, that sometimes things do not progress as quickly as we'd like.

"However, I can only reiterate that the State Government will get to the bottom of this incident, identify its causes and, wherever possible, prevent it happening again."

Gerry Georgatos, from the National Indigenous Critical Response Service, said Denishar needed 24-hour care, most of which was provided by her mother and older siblings.

The family receives two six-hour shifts of external care, but needed rostered support for the other days of the week.

"Denishar … is immobile and has multiple issues, needs to be bathed, washed, cleaned, fed, she can't do any of that by herself," he said.

Mr Georgatos said the act of grace payment was welcome, but much more needed to be done to meet Denishar's care needs.

"What is really needed is an ex-gratia payment, an advance payment on the due compensation that will occur within a couple of years, but we've got the problem of two years to three years before that actually occurs," he said.

"This is an impoverished family living on a single parenting pension and living in difficult circumstances, and what's occurred to Denishar was not of their making."

A formal investigation into the incident by the Building and Energy Division of the Department of Mines, Industry Regulation and Safety is continuing.