Police arrived to find Mary Page's body at the terrace house in James Street on Friday evening.
Nothing could be done to save her and the 68-year-old victim was pronounced dead at the scene.
Her son Matthew Page, 40, was arrested and questioned on Saturday and on Sunday detectives confirmed he had been charged with murder.
The van driver will appear before Wolverhampton Magistrates' Court on Monday.
The result of the post mortem carried out yesterday was inconclusive, say West Midlands Police.
A force spokesman added the victim had suffered a head injury.
Her devastated family released a statement through police saying she will be 'greatly missed'.
They paid tribute saying she was a 'kind animal lover and mother whose life was tragically cut short; she will be greatly missed by her family and friends'.
Mrs Page’s relatives are being supported by a specialist police family liaison officer at this time.
West Midlands Police described it as a 'domestic incident'.
A police cordon remained in place in James Street today and another scene was also secured in Dilloways Lane, Willenhall.
Residents spoke of their shock at the near the victim's home in James Street just off Mount Pleasant.
A neighbour, who gave her name as Kelly, a mother-of-three, told the Express & Star: "The police knocked on my door on Friday night to see if I had a back gate key, we share the back gate with the property.
"She lived with her son.
"I am really shocked to be honest. We have never had anything like this on the street. It was last night when all the police and ambulances came.
"She was a nice lady."
Another neighbour called the killing 'shocking' and also paid tribute to the woman as a 'nice lady'.
Another resident said: "We found out on Friday night. We were in the house and the neighbours were out and one of them asked what was happening.
"There were ambulances and police cars and so we came out.
"Police were canvassing at the time to see if anyone had heard anything.
"It doesn't happen normally.
"We were shocked to death and people couldn't believe what was going on.
"We had as many as four police vehicles here.
"We knew the person who died, Mary – they all seemed like a nice family.
"They've lived here for around 10 years."
Anyone with information can call police on 101.