Stained glass windows and mosaics in the church, designed by renowned iconographer Boris Makarenko of New York, were installed over a period of time ending in 1992.
The Sanctuary contains the main altar and two smaller preparatory tables. The Divine Liturgy is celebrated at the main altar.
Above the main altar is a large mosaic of Mary the Mother of God, the Protectress. She holds in her hands the Omohphor, symbol of her Protection. The symbols on this icon include the Greek letters ΜΡ ΘΥ, which are on either side of the halo. This is the abbreviation for Mater tou Theo which is Greek for Mother of God. The mosaic measures 27 ‘x 15′ and is made from over 250,000 individual smalti mosaic tiles. The Stained glass windows on either side of the mosaic depict the cherubim and seraphim.
Proskomydia (Preparation Table) Located on the East Wall on the left side of the main alter above the Proskomydia is an icon of Christ presenting the chalice to St. John.
Deakonikon (Vesting Table) Located on the East Wall on the right side of the main alter above the Deakonikon is an icon of Christ presenting bread to St. Peter.
The icon on the north sanctuary window represents the Crucifixion. The south icon depicts the Resurrection of Our Lord.
Opposite the Marian altar is a mosaic depicting the history of our Parish. The buildings are of the Basilian Monastery in Mundare, Alberta, the old St Mary’s Church on Princess street and the current building. Bishop Nicetas Budka (Canada’s first Ukrainian Catholic Bishop) is shown with the first immigrants.
On the south-west wall is a mosaic depicting the consecration of Ukraine to the Protection of the Mother of God.
To the left side of the Sanctuary is an altar dedicated to the Blessed Mother of Perpetual Help. Above it is a mosaic of St Andrew on the hills of Kyiv.
To the right side of the Sanctuary is the altar of Christ the Teacher. The mosaic of the Baptism of Ukraine in 988 is installed above this altar.
The stained glass windows located throughout the Church depict events in the life of the Blessed Virgin Mary