I recommend Colorado Roof Toppers. Scott Bart has a great crew that did excellent work on two homes for us in 2021. He was the most honest, and gave me the lowest bids among 5 other roofing contractors. They did both roofs with new underlayment, ice and water shield, architectural shingles, and complete gutters with gutter guards. I've done many roof jobs myself so I know what to look for. They're first rate.