Denbigh Town started brightly and took the lead on 10 minutes through Tom Williams.
They continued to press and created several half chances.
On 27 minutes Conwy drew level when Alan Bull gave away possession and Lee Davey scored.
Worse followed on 32 minutes when poor defending saw Josh Dures fire home.
A poor first half was complete on 36 minutes when Conwy again exposed a poor Denbigh defence to score a 3rd.
The second half was a much better performance but Denbigh Town failed to take their chances to get back in the game and to add insult on 84 minutes keeper Elliot Power was dismissed for hand ball.