- St. Michael's Church, Montreal (1938)
- Church of the Holy Trinity, Toronto (1941)
- Grace Church on-the-Hill, Toronto (1943)
- All Saints' Anglican Church, Ottawa (1946)
- St. Paul's Cathedral, London, Ontario (1951)
- Christ Church Cathedral, Hamilton, Ontario (1953)
- St. Andrew's Presbyterian Church, Vancouver (1956)
- Washington National Cathedral, Washington, D.C. (1958)
- St. John's Episcopal Church, Washington, D.C. (1961)
- Trinity Church, Boston (1964)
- St. Mark's Episcopal Church, Philadelphia (1967)
- St. Thomas Episcopal Church, New York City (1970)
- St. James' Episcopal Church, Chicago (1973)
- St. Luke's Episcopal Church, San Francisco (1976)
- St. John's Church, Halifax (1979)
- St. Paul's Anglican Church, Kelowna (1982)
Montzambart's work is notable for its use of bold colours and simple, elegant designs. She was influenced by the work of the French painter Pierre Bonnard and the American stained glass artist Louis Comfort Tiffany.