Coat of arms: green shield, two gold keys passed in quotation mark, tied by a torçal color red, with a walk of five faixetas ondeadas silver and blue; flaqueado black, loaded flanks of a branch with two leaves and a hedgehog nut, all gold. Mural crown of four towers of silver. Listel white with the legend in black: “the Village of S. Pedro de Castelões.
Flag: esquartelada of green and yellow. The cord and tassels of gold and green. Rod and spear of gold.
Seal: circular, with the parts of the shield without indication of colours and metals, all surrounded by two concentric circles, which runs the legend: ”Junta de Freguesia de S. Pedro de Castelões”.