  Alfv\'en waves may be difficult to excite at the photosphere due to low
ionization fraction and suffer near-total reflection at the transition region
(TR). Yet they are ubiquitous in the corona and heliosphere. To overcome these
difficulties, we show that they may instead be generated high in the
chromosphere by conversion from reflecting fast magnetohydrodynamic waves, and
that Alfv\'enic transition region reflection is greatly reduced if the fast
reflection point is within a few scale heights of the TR. The influence of mode
conversion on the phase of the reflected fast wave is also explored. This phase
can potentially be misinterpreted as a travel speed perturbation, with
implications for the practical seismic probing of active regions.
