The building dates from 1915, when it was constructed as a missionshus (mission house) maintained by a local mission association whose members belonged to several different Christian denominations. This origin as an ecumenical meeting place, rather than a purpose-built parish church, shaped much of its later history.
In 1943 the chapel was leased by Nederkalix parish, and in 1948 a foundation was established to support Sangis church. Following a number of restorations, the building was formally consecrated as a church on 12–13 November 1959 by the dean (domprost) Stig Hellsten, after which it passed into the care of Nederkalix parish. An extension was added during the 1970s.
Ownership changed again in more recent times: on 1 November 2011 Nederkalix parish transferred the church to the Sangis kyrkliga förening, a local church association, which appears to look after the building today.
Architecturally the church is simple and typical of wooden churches in the region. It has a log-built structure (liggtimmer) with exterior walls clad in vertical timber panelling, beneath a steep gabled roof covered in eternit (a fibre-cement sheeting once common in Sweden). A separate freestanding bell tower, with a shingle-clad cap, stands beside the church.