Bailey Stevenson took his goal tally up to seven in four league games as Welwyn Garden City made it three wins in the Southern League Division One Central.
The 3-1 success on bank holiday Monday over Northwood was City's first home game of the year and lifted them to sixth in the table, their only defeat so far being Saturday's 4-3 reverse to unbeaten Berkhamsted.
Manager Marc Weatherstone had been slightly disappointed at Berko.
Speaking on Twitter he said: "I honestly felt we deserved something from the game but we didn't take our chances.
"To score three away from home and not come away with anything is disappointing but we will play a lot worse and win that’s for sure."
He had promised they would "take our medicine" and move onto Northwood and they did that in style.
Weatherstone was much happier after Monday, saying: "Six changes is what this squad is all about. Nine points from 12 isn’t a bad return but we'll keep pushing."
Those changes saw keeper Donny Green suffer a recurrence of his troubling leg injury and be replaced by Harold Poku.
New signing Layne Eadie, Aiden Read and Henry Jones, all started, as did the fit again Matty Whichelow in midfield.
Jack Green, Ryan Sellers and Lewis Croucher dropped out from Saturday’s starting line-up.
Northwood went closest earliest, when a tentative long cross from their full-back David Agyemang clipped the home crossbar on its way over.
But WGC settled and after Stevenson had shot straight at Dan Hosier, Whichelow shot over while Jones smashed an effort into the side netting.
Read needed replacing after a heavy fall on 36 minutes but one minute later Welwyn surged in front.
Eadie's cross was cleared out to Zuriel Otseh-Taiwoo but his return was hooked in by Stevenson.
WGC forced a succession of early corners at the start of the second-half, one of which Northwood skipper Harry Gallagher had to clear off the line.
The visitors’ striker Jordan Brown was booked for a hefty challenge on WGC’s Jed Ejjayha and it was a caution that would prove crucial.
Then seven minutes in, the visitors were reduced to 10 men when Jordan Brown, already cautioned, followed through on a challenge on WGC’s Ryan Kirwan and was sent packing.
There quickly followed a second dismissal for Northwood manager Scott Donnelly, for making a remark from the touchline.
But all this adversity had a startling effect on the visitors and a couple of minutes later they were on terms at 1-1, full-back Odusoga put in a long dipping cross that dropped between keeper Poku and Otseh-Taiwoo for Bradley Clayton to crash in on the volley.
It was a moment that stunned WGC but they too began to dig deep to find extra reserves.
In the end though, it needed something special to get them back in the game and it came 15 minutes from time from a free-kick.
Whichelow took it and produced an absolute peach of a pass, splitting the Northwood defence, to put Stevenson in to crash a fearsome effort high into the net.
With five minutes left, clever work by skipper Brad Wadkins sent substitute Lucas Jordan clean through and although his initial effort was blocked by the keeper, Stevenson gave him a second go and this time he made no mistake.
WGC: Poku, Otseh-Taiwo (Steel 63), Ejjayha, Read (Crilley 36), Kirwan, Eadie, McDonald, Whichelow (Croucher 76), Wadkins, Stevenson, Jones (Jordan 71).
Sub (not used): Bryant.
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