Macaulay Langstaff's first-half hat-trick set us on our way to victory, before Cedwyn Scott and David McGoldrick rounded off the win after the break.
We created a string of chances in the opening half hour before Jim O'Brien put a neat pass through to Langstaff to on 34 minutes.
Five minutes later our number nine made it two after converting an Adam Chicksen cross from the left.
It didn't take long for last season's top scorer to make it an 11-minute hat-trick following a magnificent through ball from McGoldrick.
Our dominance continued into the second half, as substitute Scott coolly side-footed another Chicksen cross into the back of the net with his first touch just after the hour mark.
11 minutes from time McGoldrick completed the scoring with an unstoppable long-range effort that flew beyond the outstretched Alfreton keeper.
STARTING XI: Slocombe; Chicksen, Cameron, Bajrami, Brindley, Adebayo-Rowling; Bostock, O'Brien, Austin; McGoldrick, Langstaff
SUBS: Stone (unused), Mahovo, Baldwin (unused), Cisse, Munakandafa, Scott