Northwood registered their first Ryman One North win in a month at a wintry Mill Field, home of Aveley FC, due to floodlight problems at Redbridge's Barkingside ground.
The Woods took a third minute lead, John Christian surging forward and Michael Gordon cut in from the right to send a delightful chip over Jake Whincup, although they were fortunate to survive an immediate reply when Mitch Swain misjudged a spec-ulative ball which hit his crossbar.
The rest of the half was quiet by comparison but after the break Red-bridge drew level with a bizarre own goal from Danny Murphy as he tried to clear a cross from former Woods reserve Anton Agdomar.
Sean Sonner, who earlier drew a good one-handed save out of Whincup, was denied by the keeper's legs but after the Motormen werereduced to 10 men on 82 minutes when Harlee Dean received a second caution for his challenge on Swain, Sonner headed a last minute winner from Abdul Yoki's pin-point corner.
AFC Hayes survived a battle royal to reach the second round of the GX Southern League Cup yet Tony Choules was possibly the happier manager after a virtual Uxbridge reserve team took Joe Mitchell's side all the way to extra time. The youthful Reds should really have won the tie after taking a 2-0 lead with goals from Mark Sargeant and a real beauty by Ben Jones, turning and curling into the top corner from 25 yards.
Adrian Dinham also sliced miles over a gaping net as Uxbridge, made up of first team fringe players and reserve team regulars, dominated the third quarter, although Dean Clark did strike the post at the other end.
Danny Tilbury and Gilbert Nuako struck from close range in the final nine minutes to tie the scores and Dean Papali could have won it in normal time but hit the bar with a chip, moments after completely missing an even easier chance, while Hayes keeper James Harry also made a fine stop from a deflected cross to take the game, played in blizzard conditions at Honeycroft, into extra time.
Hayes were the better side from then on and Papali pounced again but Uxbridge levelled through Johnnie Dyer's stooping header and just as thoughts began to turn to a penalty shoot-out, Papali headed home in the 115th minute to earn a 4-3 win.
Harefield United passed a major test of their title credentials with flying colours by thumping Oxhey Jets 4-0.
Chris Drake put the Hares ahead in first half injury time and Luke Lloyd doubled the lead early in the second period before Ben Cowen's late brace completed a resounding win - only the second defeat Jets have endured in the Spartan Premier Division.