It strengthened their grip on second place and brought them within seven points of leaders Whitehawk with a game in hand.
The stage was set for Richard Jolly to take the goalscoring spotlight on his return from honeymoon.
And, after Dean had opened the scoring in the tenth minute, Jolly duly netted the second on the half-hour mark.
Then it turned into a rout as Dean grabbed two more either side of a Lee Chappell strike. (Dean's acrobatic finish to complete his hat-trick is pictured courtesy of Steve Foster/Wealdstone FC)
Steve Brinkhurst replied on the stroke of half-time, but the second half was only three minutes old when Dean completed the night's scoring with his fourth.
So the last 42 minutes were goalless, continuing the strange pattern of recent high-scoring matches in the Premier.
Kingstonian's 9-3 win over Cray nine days ago was scoreless after half an hour, and all the goals in Leiston's 5-4 victory over East Thurrock on Saturday came in the first hour.
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