The all-action midfielder and son of former Hammers star John Moncur has been rewarded for his promise, commitment and ability with a three-year deal.
"I am very pleased. I've started off the season well and I'll try and carry that on now I've got my contract," he told whufc.com.
"I found out a couple of weeks ago when Alex Dyer had a word with me after training. I told my Dad and he was really happy and told me to work hard and keep doing well.
"It helps so much to have a Dad who has been through the same experiences himself. He tells me lots and I've just got to take it all on board and listen to what he says."