They reformed in 2004, with Fletcher taking the decision to leave the band in 2013.
Maya lead tributes to Fletcher on Tuesday evening, calling his bandmate a "genius" and a "gentleman".
"Jeff was a gentleman and my friend since the age of five, we grew up together and went through school," he told Manchester Evening News.
"He was a genius and learned the guitar in six months. He was the principle song writer, he could make melodies, sing and was a good performer. He made the sound of Northern Uproar, we were a great team.
"Jeff was recognised as a great guitarist, his guitar work was amazing. He was such a lovely caring bloke, I will miss a proper friend," he added.
Floral tributes now line the scene where Fletcher died.
One message read: "We all miss you dearly we will miss you forever mate".
"On my way home I saw you there and thought of your family and friends and I said a prayer," said another.
Friends and fans also expressed their condolences under a post announcing Fletcher's death on Northern Uproar's Facebook page.
"We are at Giant's Causeway in Ireland, we have been saying goodbye to a gentle giant," the post read.