I chose the group with Anton and Cveta on a new game. (This group option is unlocked after playing for a while)
The house looked like it was in a better condition with this group than in my previous plays.
I could only repair two holes in the building instead of three. (no third hole visible)
The "Reinforced door" is not available until all holes are boarded up, but I guess the game waits for me to board up a third nonexistent hole to make the "Reinforced door" available. (workbench upgraded twice)
Add another hole or lower the required number of fixes for this building to make the reinforced door available.
PS: I do see the option to build the "Reinforced door", but it's grayed out until all holes are fixed.