The present timber church dates from the later 1400s and stands on a site some accounts describe as an old pre-Christian cult place, though this is unconfirmed. It replaced an earlier 13th-century stave church of a type similar to the one still standing at Hedared. A surviving parchment letter from Bishop Brynolf of Skara, addressed to a Mary Magdalene chapel at 'Bremholt', is cited as evidence for the church's early medieval origins.
The building has a long, narrow plan and no tower. The western half of the nave belongs to the 15th-century structure, while the eastern section and chancel were added in 1796–98, when the exterior was also given its timber cladding and a new porch was built. By the mid-1600s the church had fallen into disrepair and some parishioners argued it should be abandoned, but after Brämhult was joined to Borås parish, local people undertook restoration instead; a councilman named Andreas Larsson is remembered for his part in this work, with his name carved above the sacristy door.
Inside, the ceiling, pulpit, gallery and pew doors were painted in 1736 by Ditlof Ross, with further decorative ceiling painting added in 1925 by John Hedæus. A mid-20th-century floor repair uncovered numerous graves and coins reportedly dating from the era of the Danish king Erik Menved (1268–1319), a discovery that led to a further restoration the following year, during which older furnishings that had been hidden away were reinstated and some of Ross's painted work, previously overpainted, was revealed again.
A freestanding red-painted timber bell tower dates from 1745 and has been renovated more than once. Its larger bell is said to be late medieval, though it bears no inscription or date, so its exact age cannot be confirmed. Notable furnishings include an altarpiece painted in 1917 by Olle Hjortzberg, an 18th-century wooden sculpture of the crucified Christ with two women by Jonas Elfvenberg, and a wooden cross from 1799 later given a textile backing. The church also has a two-manual pipe organ built in 1983 by Grönlunds Orgelbyggeri.