A signal box was built in 1875 at the Exeter end of the station on the south side of the line. This was replaced by a new building on 16 June 1957 which was on the opposite side of the tracks. On 11 June 1967 the line from to was reduced to a single track but a loop line was retained at Honiton to allow trains to pass midway on this section. The westbound platform was signalled to allow eastbound trains to use it when they are not crossing a train coming in the opposite direction. In December 2009 a new loop was installed at Axminster to break up the section towards Chard. One siding was retained to the west of the signal box, worked by a ground frame rather than from the signal box itself, however this has now also been lifted.