Chalvey made 2 changes to the side that lost at home to Wembley in the F.A Vase.
Strikers Lawrie Toombs And Oscar Betts made way for Amin Knomsi and Kris Drake.
Jason Marney pushed up top with Amin Knomsi going into midfield.
Chalvey took the lead through Aydn Christian-Coomber after his long shot from outside the area found the back of the net.
HT 0-1 Chalvey
Chalvey conceded on 61st minute and then again on 75th minute and chasing an equaliser, Chalvey conceded one minute from time for AFC Aldermaston to secure all 3 points.
Chalvey Sports Now have to wait two weeks before making amends for a poor second half showing.
Goal: Aydn Christian-Coomber
MOM: Rich Jeffrey