Watch highlights from Tuesday night’s crucial playoff clash - including a sublime volley from Kyle Connolly and an 18-yard overhead from Tudors skipper Jordan Parkes that cannoned off the bar.
Hemel raced into an early lead through Ed Oshodi, and they doubled their advantage soon afterwards as Matty Harriott fired home.
Chelmsford pulled a goal back before half-time courtesy of a fine solo effort from Joe Ward, but Hemel wrapped up the points in stoppage time at the end of the game as substitute Kyle Connolly netted his first goal for the club.
The victory puts Hemel only two points off a playoff spot, with a game in hand over fifth-placed Gosport Borough.
Next up for Hemel is a trip to high-flying Hertfordshire neighbours Boreham Wood on Saturday afternoon.
All videos (c) Hemel Town FC club videographer Michael Griffin. Follow him on Twitter @Micky_G1947