Writes Jake Moore...
A red card in the first half set the tone for what proved to be 90 minutes to forget for Chelmsford as two goals within the last 15 minutes ensured all three points were kept in Hertfordshire.
The Clarets created the first chance of the opening half within two minutes when Robbie Simpson was fouled by Connor Essam. Ollie Muldoon stepped up to take the resulting set-piece, but his effort struck the wall and was eventually cleared.
Hemel's first opportunity forced panic for City and Mickey Spillane, after a floated cross from Liam Nash forced the City defender to pull off a last ditch challenge and put behind for a corner.
Dan Phillips was next to go close for the hosts, but his strike from outside the box dragged well wide of the post.
Tom Wraight registered the Clarets' best chance of the game on the 15th minute after his header across goal had to be cleared off the line by the Hemel defence.
Muldoon was next to go close just a minute later. The midfielder was teed up by Jonny Giles before firing an effort just over Danny Boness's goal.
Muldoon was in the thick of the action early on and won a free-kick for the visitors on 25 minutes. Adrian Cascaval stood over it and floated a ball towards Tom Wraight who forced Boness into making a smart save to keep the score level.
The first half dominance continued for City, and through Muldoon, who this time, sent a strike heading for the top corner only to be denied by Boness again.
Next, Billy Knott got in on the action, floating a ball into the box which proved just too high for Simpson and headed out for a goal kick.
With 10 minutes until the break, Hemel threatened twice through Jack Midson. First a header across goal was efficiently cleared, before the experienced forward's attempted lob was gathered in the air easily by Carl Pentney.
Wraight came close for Chelmsford, again linking up with a Knott cross but his strike fell just wide from close range.
Boness denied City again with 5 minutes of the half remaining as Simpson's flick-on found Giles whose header was saved by the Hemel shot-stopper.
Despite the dominant display for the first 40 minutes, City's afternoon took a turn for the worse in the closing stages as Cascaval was dismissed for an aerial clash with Alex Wall.
Hemel started the second period with the man advantage and looked to make the visitors pay early on, going close through Nash who was played in on goal before seeing his lobbed effort travel over Pentney and hit the crossbar.
The second of two chances in quick succession for the Tudors came from Phillips who, from range again, fired a shot just over the bar.
The hosts' second-half substitute, Isaac Galliford was in on the action almost immediately when his long range effort goalwards was claimed by Pentney.
The Clarets first chance of note in the second half came with 20 minutes to go. Chris Whelpdale's searching cross almost found Wraight at the back post who just couldn't reach the ball in time.
Hemel's man advantage soon became a goal advantage too, when, with 75 minutes on the clock, forward Sam Ashford managed to dispatch the ball beyond Pentney one-on-one.
The Tudors waited a mere 5 minutes before doubling their advantage - this time time from the penalty spot. Shaun Jeffers fouled Ashford in the box, before Midson finished beyond Pentney from 12 yards,
Hemel and Ashford were to have one more effort before the final whistle, but the man responsible for the first goal failed to keep his volley from going over the bar.