Dating back to the 1870s, the church is one of seven under the collective Benefice of Redenhall with Scole, across the Waveney Valley.
Architect Ruth Brennan said fans were being used to dry out the damp inside the building.
She added: “The roof is badly damaged because the fire brigade punched holes in it to let the smoke out and let the water in. The roof is badly charred… all the electrics and heating were destroyed, so we need those done and a lot of the stained glass, unfortunately, was very badly damaged, and some of it has been destroyed.”
However, she is optimistic the church can be restored to its former glory.
“Whoever built this really built it with love and spent a lot of money on it,” she continued.
“It’s got some beautiful décor, it’s a lovely size, it’s well-loved, and until the fire, it was beautifully kept and well cared for.”