Siddal started strongly when quick in-to play by Tom Hirst and Jake Turner sent flying wing man Matty Prest in at the corner.
Strong runs by forwards Keenan Ramsden and Simeon Holye got the home side on the front foot and quick hands set up the position for Kian Cox to run round to score a great try under the posts, James Dodd converted.
Defences were on top for the next 20 minutes with Mason Tinkler-Scott,Luke Garnett and Brandon Tallis to the fore after defending 5 sets on there own line which West Hull found it impossible to break down.
Wingers Prest and Dodd and reliable fullback Callum Holroyd took play down field and half backs William Scrimshaw and Turner worked well together with Turner showing a clean pair of heels to storm over from 30 yards. 16-0.
West Hull came bouncing back and only a last ditch tackle by hooker Dan May prevented a try and Siddal got to half time 16-0 up.
Siddal had to re jig the pack with Mason Tinkler-Scott on his way to hospital and youngster Ethan Lewis came in to the pack and put a sterling effort in and Leo Dow making big yards took play down field with Josh Milnes and Cole Wilson combining to set up the position for Dan May to crash over. 20-0.
West Hull had a converted try after Siddal switched off for the only time in the game 20-6.
Siddal showed there dominance when second row Milnes showed half back hands to send Prest away for his second try to score in the corner to finish the game off 24-6.