Glapwell had taken a 12th minute lead and, after being pegged back two minutes before half-time, secured the win courtesy of a powerful Ash Barber header on 71 minutes.
Looking for a strong finish over the final five games of the season, Glapwell were forced into three changes from last week’s draw with Askern with Ashley Ruse, Peter Hibbard and Brad Dowdall unavailable and replaced by Jordan Jones, Ash Barber and Dean Isaacs.
Glapwell started the game well but the visitors had the first chance of the match but Lance Mulligan could only fire a free-kick straight at Ryan Hopkins while up the other end a loose ball dropped for Dean Isaacs who attempted to chip visiting keeper Cameron Smith but put just too much on it as it also cleared the crossbar.
On 12 minutes, though, Glapwell went in front. The ball came to James Whitfield from a throw-in and he beat three defenders and forced his way into the penalty area before smashing an unstoppable effort into the top corner for his fourth goal in four games.
Glapwell were playing well at that stage but the visitors could have been level soon after when Lance Mulligan, who was maybe a little lucky to still be on the field after an earlier tackle, was denied by a good save from Ryan Hopkins.
But other than that, the main chances of the first period fell to Glapwell and they had a chance to double their advantage but Adam Seward couldn’t wrap his foot around the ball as he shot wide after being played in by Jordan Jones.
James Whitfield then worked space for himself on the edge of the area but fired a shot over the bar from 20 yards before Andrei Pykett played a great ball through to Adam Seward who chipped the ball over the onrushing keeper but, unfortunately, also over the crossbar.
Two minutes before the break, though, the visitors got themselves level when Ryan Hopkins’ poor kick only went as far as Scott Curley who finished brilliantly into the top corner from 25 yards.
That was a big blow for Glapwell but they could still have gone into the interval in front when Jordan Jones crossed from the right to the back post to Ash Barber who shot wide.
But the sides went in level and Glapwell might have felt that they had missed their chance and it was Sherwood that had the first real chance of the second period but Luke Proctor fired well over from 20 yards after being played in by Gaz Curtis from the left.
After a quieter spell in the game in which Sherwood were slightly on top, Glapwell were desperately unlucky not to go back in front when James Whitfield’s shot was blocked into the path of Dean Isaacs who saw his shot bounce across the face of goal off the inside of the post.
Ash Barber and Dean Isaacs then both fired efforts wide before up the other end Gaz Curtis played in Lance Mulligan who, in turn, played in substitute Pat Stutt who was denied by a good save from Ryan Hopkins.
But Glapwell went back in front on 71 minutes. A free-kick from the left touchline, won by Adam Seward, was brilliantly swung in by James Whitfield and met by a bullet header from Ash Barber which left Cameron Smith with no chance in the visitors’ goal.
That gave them something to hold on to and the visitors had a couple of chances to pull themselves level shortly afterwards when a short corner taken to Brendan Williams was pulled back to Scott Curley whose shot was well held by Ryan Hopkins.
Then, just a minute later, Sherwood went close when Lance Mulligan saw his shot bounce back out to safety off the post.
As the minutes ticked away, Glapwell looked relatively comfortable and could have made the game safe in the final minute when a poor clearance saw Adam Seward race clear down the right and his shot was deflected into the side netting at the near post.
But, in injury time, both sides were harshly reduced to ten men in separate incidents as firstly Sherwood saw Charlie Taylor given a straight red card for a studs-up challenge on Craig Humphreys on the edge of the Glapwell area.
Then in the sixth minute of added time, Glapwell had Ryan Hopkins sent off for handling the ball outside the area on the advice of the assistant referee.
Adam Seward went in goal for Glapwell for the final moments but he was untroubled as the referee blew for full-time as soon as the resulting free-kick was blocked by the wall.
Glapwell remain in 12th place with four league games remaining with Sherwood a place, and a point, above with just two games remaining this campaign.
Glapwell will be looking to build on this result when they play their final away game of the season this Saturday when they travel to Phoenix FC, kick-off 3pm, before hosting Kinsley Boys next Tuesday evening, kick-off 6.30pm.
Goals: Whitfield (Glapwell) 12; Curley (Sherwood) 43; Barber (Glapwell) 71
Glapwell: Ryan Hopkins, Jordan Jones, Andrei Pykett, Carl Vickers, Luke Fisher, Jake Wharton (Craig Humphreys 25), Adam Seward, James Whitfield, Ash Barber, Dean Isaacs, Geoffrey Gouveia
Sherwood: Cameron Smith, Adam Smith (Eden Homer 78), Tom Gascoigne, Scott Curley, Charlie Taylor, Kyle Peace McDonald, Gaz Curtis, Luke Proctor (Charlie Simpkin 78), Lance Mulligan, Josh Smyth (Pat Stutt HT), Brendan Williams
Yellow Cards: Mulligan (Sherwood) 9; Curley (Sherwood) 78; Whitfield (Glapwell) 87
Red Cards: Taylor (Sherwood) 90; Hopkins (Glapwell) 90
Referee: Edward Cook