Like many schools, Edgware Junior School had air-raid shelters excavated during World War II to protect pupils and staff. Some reports say as many as 13 shelters were built - possibly included some above ground structures. They were to prove useful as the school was bombed in 1940 and suffered a near miss by a V1 doodlebug later in the war.
In February 2006 an archaeological dig took place led by Gabriel Moshenska and with assistance from University College London (UCL) and the Hendon and District Archaeological Society (HADAS). This uncovered one of the shelters which still held wartime artefacts. Current day pupils were involved with the project and at least one former pupil was able to share her wartime memories.