Cut 'em down. Replace it with something else.
Mountain Laurel grows to 10-12 feet, and tends to be naturally leggy in its natural Northeastern Oak woodland habitats (see photo above). If it's "overgrown" that way in your around-the-house landscaping in places where it is meant to look green and full, it's because it was planted in the wrong place. It wants to stretch out, unless in full sun. With plenty of sun and rich, slightly acidic soil, it grows like this:
Another alternative is, again, to cut it down to about 6-10" sticks in the Springtime, and let it re-start its growth from the bottom. Regrowth, though, will take far too long for most people to put up with.
The same principle applies to leggy Rhododendron maximum, ("maxies").Come to think of it, also applies to leggy Lilacs. Shrubs get leggy naturally.