The church of Sant Andrèu greets us with an external architectural image which is typical of the late Romanesque period and around the 13th century. It has a basilica-type ground plan with a triple-apse heading and tympanum-free facade. The SW angle has a 15th century belfry whose ground floor still retains a habitable dome and rib structure space. The outer perimeter of the church offers, on the border of the upper frieze, an ornate sculptural ensemble in the form of modillions.

The facade, conceived as five decreasing arches protected by a dust-guard, is basically decorated with vegetable motifs; there is a monogram of Christ embedded above the keystone of the arch.
Inside, you will be struck by an elegant Gothic architectural structure resting on square-based pillars and ribbed vaults. Near the presbytery visitors will find some of the most extensive and best-kept wall paintings in the Aran Valley; they are 17th century paintings depicting different biblical characters and scenes.

The crowning moment of the visit to Sant Andrèu de Salardú is when you approach the central apse, where the majestic sculpture of the Christ of Salardú stands. This is the masterpiece of the Erill la Vall workshop, which is also believed to have produced the Christ of Mijaran. The piece shows the image of a suffering Christ, with a triangular leg section and the characteristic features of Romanesque religious iconologies. It dates from the 12th century.