Second half goals from Jake Reid and Max Cornhill made it three wins out of three for the Clarets this pre-season, but despite beating Heybridge Swifts and St Neots Town 5-1, this latest win against West Ham has to be considered the pick of the bunch so far.
The Hammers side were mostly made up of the Premier League Club's development squad, but they did have a sprinkling of first team players with Michail Antonio and West Ham's new signing from Manchester United, Ashley Fletcher, both starting.
It was the first opportunity for most Clarets fans to view Rod Stringer's new-look Chelmsford side as he took to the Melbourne Community Stadium for the first time as City boss. But, as expected, it was the visitors who created the best chances of the first half.
New-boy, Fletcher was found unmarked on the edge of the area but failed to hit the target, blazing over. Later in the half Fletcher forced Joe Welch into action as the striker's shot had to be expertly tipped around the post by the stopper signed from St Albans.
City's best chance was nothing more than a half chance when Shamir Mulling hassled the ball off a Hammers defender before attempting a lob from 40-plus-yards out after seeing the goalkeeper off his line, narrowly missing the target.
The Hammers put out a different team in the second half with only the goalkeeper surviving, but Stringer held off until the hour mark to make his move, making 11 changes in the 61st minute.
The changes though paid dividends as the Clarets took the lead in the 70th minute through Jake Reid. Latching onto a flick on, the striker won the race between himself and the goalkeeper allowing him to poke the ball into an empty net to give the home side the lead.
In the closing minutes the Clarets were awarded the chance to seal the victory when Marvel Ekpiteta was brought down in the area for a penalty. A trialist stepped up to take the spot-kick but his chipped effort floated over the bar.
But the win was made safe in the 88th minute with an early goal of the season contender from Max Cornhill after a lay-off from Reid, Cornhill struck the ball on the half volley, sending the ball hurtling into the top corner from 25-yards out.