It must be all too common.
One should distinguish dirty from hoarding.
Psychology Today describes hoarding disorder.
The cause of hoarding disorder has yet to be identified, although there are known risk factors. People who experience a traumatic event, have difficulty making decisions, or have a family member who hoards are at higher risk of developing the disorder. The majority of people with hoarding disorder also suffer some type of depressive or anxiety disorder.
The tendency to hoard often begins in adolescence and worsens as a person gets older.
Hoarding disorder is viewed as a type of obsessive-compulsive disorder, and many OCD disorders are closely linked to anxiety. None of the symptoms of hoarding disorder is due to any other mental health condition or medical problem. One study found that among the reasons people reported for their hoarding, avoiding waste was the most common.
https://www.psychologytoday.com/us/conditions/hoarding-disorder
OH! About those repairs.
If at all possible: "I need to take this to the shop to repair it"
Even if it's a refrigerator, what the heck.