We present a detailed analysis of the chromospheric response during a small-scale flaring event observed in the active region NOAA 13394 on 8 August 2023. By utilizing coordinated high-resolution spatial and spectral observations from the GRIS spectropolarimeter at the GREGOR telescope, targeting the He i 1083.0 nm triplet, and the IRIS spectrograph, covering the near- and far-ultraviolet spectral regions, we investigate the plasma dynamics and heating processes within the solar atmosphere. We observe complex, asymmetric He i Stokes profiles; inversions performed with the state-of-the-art HAZEL code reveal that these profiles are characterized by significant redshifts, with velocities reaching∼30 km s−1, which are interpreted as signatures of chromospheric condensation. These findings are supported by simultaneous IRIS observations, which show redshifts in transition region lines (Si iv, C ii) along the footpoints of the flaring event, suggesting a coherent, multi-layer response to the heating. The evolution of the Mg ii h&k line profiles, transitioning from a central reversal to a single-peaked morphology, suggests a rising source function associated with reduced opacity. These features provide compelling evidence of deep heating in the lower chromosphere during the flaring event.