From start to finish, Mark and his crew at Coverall were amazing. Coverall was recommended to us by TWO different neighbours. Of the five companies we interviewed for the project [all of them well-rated on homestars], Mark was by far the most friendly and least "huckstery" of all the roofers. And his price was competitive. He was knowledgeable about the work required [some flat-roof torch work was required in the "snow box" around our chimney], about the products he recommended [we chose Landmark Certainteed shingles] and how to properly fulfill their warranties, and about the insurance coverage he had for the project. Since our roof had been leaking [even after a repair by a pricy emergency roof repair company - wish we'd known about coverall first!], he fit us into his first available opening. Most of the work was finished in one day. Sudden heavy thunderstorms stopped them from doing the finishing caulking and metal-work until the next afternoon - but we didn't have any leaks during the storm, even before the work was 100%. The crew members were all kind, considerate, and safe during the work and after the job. Even in the pouring rain, they did a great job of tidying up our property and making sure things hadn't travelled into the neighbours' yards and eaves. And Mark has a drone he can use to show you shots of your roof before and after the work is done [see below] which isn't necessary, but it sure is a lot of fun! The roof looks great. We are leak free and properly ventillated. Thanks Mark! We will definitely be recommending Coverall to everyone.