At the end of the 19th century, the church underwent extensive remodelling. The building was characterised by a mixture of Romanesque and Gothic styles, interpreted in the ”carpenter's delight” of the late 19th century. A tower was erected over the western part of the church, replacing an older bell tower. The exterior was clad in both vertical and horizontal wooden panels and painted in several colours. Later, the church was painted completely white. 

In the church hangs a so-called votive ship, something that often occurs in archipelago churches. Votive ships are ship models donated to the church, often by people who have been rescued from distress at sea.

In the church you will also find traces of the opera singer Jussi Björling. He contributed to the financing of the church's wedding chandelier by singing at a concert in the church in 1944. Jussi Björling spent a lot of time in Österåker at his summer home on Siarö.