Cheltenham boss Mark Yates believed his side deserved to get something out of their trip to Dagenham.
Luke Howell's 56th minute strike proved to be the only goal and ended an impressive five-game unbeaten run for the Robins.
"I'm disappointed because I really thought we deserved something out of the game," reflected Yates.
"We could have done better for their goal but then we had enough chances to get something. I thought we played well in patches but we also needed a bit more quality.
"It was always going to be hard coming here because they're battling hard, but we didn't do the basics well enough."