My husband removed a vanity light bar strip to put up our new fixture. Unfortunately, the box (don't know the technical term here) that we fasten the new fixture to is off center and too low for the new mirror we want to install.
How should we go about moving the fixture so it is higher and centered over the vanity? We don't have a problem with the length of the wires, but we're not sure how to actually move the box and get it secured - and repair the hole that will be left from the current box. Any advice would be greatly appreciated.