rehabilitate - To renovate or repair something, such as a building, facility, person, or environment, to make it more usable or up to current standards.

The city invested in programs to rehabilitate the old industrial district, transforming it into a vibrant area for businesses and residents.
wedge - A piece of material with a thick end that tapers to a thin edge, used to split, support, or secure things; also something that forces separation or division between people or groups.

The disagreement drove a wedge between the two longtime friends, and they really didn't enjoy spending time together anymore.