Located on the edge of town, at the crossroads of 2 roads of ancient origin, the church is on an elevated position. The openings pierced in the upper part of the walls of the nave (reminiscent of the Languedoc "mirandes") are the most remarkable feature of the monument and seem to attest that the church was, if not fortified, at least fitted out as a refuge.
The church has a cruciform plan which was not to be the case originally, because the arms of the transept, whose vaults are very low compared to that of the nave, are connected rather awkwardly to the latter by a incoherent molding system. It is not excluded that these transepts, very wide and each lit, to the north as to the south, by a large oculus obviously late, replaced a transept of more modest size. The fact that the cupola on squinches, decorated in the lower part with modillions in the shape of heads, and surmounted, on the outside, by a beautiful bell tower whose lower part is from the Romanesque period, was not placed according to the use at the crossing, but was moved above the right bay preceding the semi-circular apse, does not plead in favor of this hypothesis. It is more likely that the church originally only had a single nave.
A partial collapse profoundly altered, at an early date, the external appearance of the apse by causing the disappearance of 3 of the 5 veneered arches which reinforced it on the outside. However, if we judge by the 2 arches still in place on the south side as well as by the beginning of the arch remaining on the north side, the whole of the apse included a very neat decoration of capitals and corbels ( with a very beautiful female head on the south side and an astonishing bearded head in the northeast corner).
The relative abundance and quality of the carved decoration is one of the interesting aspects of the church of Guitinières. The western portal has 3 bare arches, between which are inserted decorative cords, and a 4th arch decorated with "honeycombs".
If the capitals of the 3 bays of the nave are of good quality (one of them was recut at the end of the Middle Ages and shows 2 figures of angels), those of the bedside are remarkable: we see men surrounded of monstrous animals caught in vegetal intertwining and an image of Lust. Stylistically, these capitals are very similar to those of the nave of Saint-Eutrope de Saintes. and the intervention of a sculptor from this workshop, the third active on this particularly important site, seems very likely, with however, on the south side and in an inconspicuous location, the unexpected presence of a capital decorated with bare palmettes but very prominent, rather reminiscent of the capitals of the southwest.
The furniture of the church of Guitinières is rather poor; at the base of one of the engaged columns of the nave, on the north side, an inscription preserves the memory of the repair of the paving in 1732. The neo-Romanesque altar fits quite well into the volume of the apse; but it is especially necessary to note the presence, in the north crosspiece of 2 Angels Worshipers in stone, which could date from the beginning of the 19th century. and which are most likely the remains of a rather ambitious altar decoration.