AT long last, this much postponed League Trophy third round tie beat the weather and WGC made it worth the wait, by totally dominating three-quarters of the tie to reach the last eight of the competition.
There they will meet FC Broxbourne Borough at Herns Lane in a home quarter-final to be played as early as next Wednesday - so far behind is the competition because of weather postponements.
Joint SSML Division 1 runaway leaders Edgware Town, who have lost just once in their division this season, went the same way as their fellow table-toppers Luton's Crawley Green, whom the Citizens had despatched in the first round of the competition.
WGC fielded keeper Freddie Hester for his first outing of the season between the posts, as regulars Jamie Jackson (unavailable), Joe Croft (injured) and youth-team prospect Marcus Bourne suspended, all couldn't play.
In his first first-team game in a year, the keeper who has been putting in some impressive performances in the club reserve side, acquitted himself well.
There was also a welcome return for teenage midfielder Nathan Dimmock, after three months out with a knee injury. He certainly gave the WGC midfield more flair than of late.
A fierce wind made the early exchanges difficult with WGC's first on-target effort coming from a long distance free-kick struck by skipper for the night Jay Lovell, that Edgware keeper Sam Styles had to scoop away for a corner.
Edgware's dangerous forward Javonne Molloy made a strong run past several home defenders until Carl Mensah stopped him with a fine tackle.
Then just past the half-hour mark, the impressive Ashley Kersey, scored the first of his two on the night, to give WGC the lead, their early dominance deserved.
Neat build-up play between Josh Bronti and Dimmock saw the ball fed out wide to Lovell. He delivered a cross to the back post, where Kersey climbed above keeper Styles to net a strong, downward header.
Nine minutes later, WGC had doubled their lead. Danny Payne lobbed a pass forward that Jason Caswell took in his stride to fire past keeper Styles, towards the far corner.
Edgware full-back Balogun got back to clear off the line, but referee Calum Chittenden was in a good position to rule that the effort had crossed and immediately awarded a second goal.
WGC were now in rampant mood and added a third three minutes after the resumption, to effectively seal the tie. Kersey made a strong run in from the right, squared it to Bronti, who turned and fired past Styles for 3-0.
Keeper Hester was hardly having a worrying moment and Dave Parkinson hit a rising effort that was deflected behind before Kersey made it four, played in down the left by a Parkinson pass to cut inside and unleash an unstoppable effort into the top rigging.
Manager Adam Fisher began to make the changes and WGC's performance seemed to drop off as a result, in the final quarter.
The lively Molloy made another dangerous run, only stopped by a timely Jay Welsh challenge, before Edgware scrambled in a consolation with 11 minutes remaining, one-time WGC player Stuart Blackburne credited with the final touch.
Substitute Craig Arnott hit a rising drive that Styles tipped into the air before saving and two minutes from the end, Hester was forced to a fine tip-over save from Adem Ali's powerful free-kick as Edgware staged a grandstand finish.
They further reduced the deficit in the game's final minute in another goalmouth scramble, following a corner. Molloy, this time, forced in his side's second.
WGC: Hester, Lovell, Mensah, McGrandles, Welsh, Payne, Dimmock (Price 72), Parkinson, Bronti (Arnott 63), Kersey, Caswell (Ross 86).