Digre's firm was one of the largest construction companies in Northern Norway.
He built and designed several monumental buildings in Trondheim including Hjorten, Frimurerlogen, Britannia Hotel, and Mathesongården as well as a number of churches in central and northern Norway.
He was married on 1 December 1843 to Anne Kristine Dahl at the Nidaros Cathedral in Trondheim.
They had five children including Johan Digre, their first born child.
Later, the plant was expanded with its own sawmill, carpentry factory, and architectural drawing office.