Kristian Dennis scored for the fifth game running as the Spireites beat Exeter City 1-0 to give Jack Lester his first home league win as Chesterfield manager.
Dennis pounced for his 12th goal of the season shortly after the break.
Jerome Binnom-Williams was handed his full Chesterfield debut with Matthew Briggs dropping out of the side.
Jak McCourt, following his superb effort from distance against Swindon last week, tried his luck early on, firing a low shot wide.
Exeter’s Jordan Moore-Taylor put a free-kick straight at Joe Anyon and Liam McAlinden’s flicked effort went wide.
Both sets of fans joined in a minute’s applause in the 12th minute in memory of 12-year-old Spireite Abbie Jacques, who passed away recently.
Joe Rowley headed wide at the far post after Binnom-Williams got to the left-hand byline and delivered a cross.
Jake Taylor and Hiram Boateng both had shots blocked as the visitors looked to force an opening.
Louis Reed then had a long-range shot deflected wide before the interval and Dennis saw his effort strike a defender.
The goal came when Reed’s effort was deflected over and the resulting corner, taken by Andy Kellett, was met by Dennis (50) who fired past Christy Pym.
McCourt tried another shot from distance, firing well over.
The Spireites survived a couple of scares with McAlinden having a header saved by Anyon and the same player just failing to reach an inviting low cross from Dean Moxey as he stretched at the far post.
Jack Lester made a couple of substitutions in the space of a few minutes with Jordan Sinnott and Robbie Weir coming on in place of Kellett and Rowley.
Dennis touched the ball to Reed who fired just over as the Spireites went in search of a second goal.
There was a real let-off for Chesterfield when McAlinden’s thumping effort crashed against the bar. Substitute Reuben Reid, who was waiting to get on the end of the rebound, was ruled to be off-side.
The Spireites had to see out the remaining minutes with only ten men after Scott Wiseman picked up a second yellow card a minute from time after pulling back Moxey and was shown the red card.
Exeter had appeals for a penalty turned down in stoppage time when McAlinden went down under a challenge from Ian Evatt.
The final whistle was greeted with a mixture of relief and celebration from the home fans.
Chesterfield: Anyon, Barry, Evatt, Hird, Wiseman, McCourt. Reed, Kellett (Sinnott 74), Binnom-Williams, Dennis (O’Grady 90), Rowley (Weir 77)
Unused substitutes: Parkin, Maguire, De Girolamo, Dimaio
Exeter City: Pym, Sweeney, Woodman (Reid 74), Holmes (Edwards 83), Stockley (James 66), Moore-Taylor, McAlinden, Money, Taylor, Brown, Boateng
Unused substitutes: Hamon, Jay, Wilson, Storey
Attendance: 5,102 (643 away fans)