The early setback appeared to spark the hosts into life. Josh Rees forced Laurie Shala into action, before further efforts from Harry Gibbs and Rees demanded impressive saves from the Angels’ goalkeeper.
Hornchurch found their equaliser in the 38th minute through Gibbs, though the goal proved controversial, with many Tonbridge supporters adamant the ball had not fully crossed the line.
The hosts carried their momentum into first-half stoppage time when Harry Sandat was brought down in the penalty area. Sandat converted the spot-kick himself, turning the game on its head before the break.