Keith's crew replaced the roof on my 100-year-old house, which included two layers of shakes and 25-year-old asphalt shingles on top. Being they were replacing the original roof, plywood sheathing had to go over the old boards with all the gaps in between. (My roof was a crap assignment, with 12/12 slope, lots of angles, and a few challenges. Most roofers run from these jobs. Some roofers quote these tough roofs super high and just drive by, hence my son - who used to do roofing - called my roof a "drive by.") I chose to upgrade to 50-year shingles (because I don't want to touch this roof again in my lifetime), and that also allowed the crew to work into colder weather (due to rubberized layer). While I had it in my head to be wary of roofing companies (heard and read too many bad stories), I found Keith to be honest, helpful, knowledgeable, punctual, and responsive to questions and challenges. I believe Keith is a trustworthy, ethical, and resourceful business person. I know this sounds like an advertisement for Keith, so I must say I was plenty worried and wary in the beginning. Keith and his crew impressed me and exceeded my expectations. (Keith's crews also replaced two of my neighbors' roofs, and they're pleased too.) NOTE: My insurance company paid for most of the $17k expense. I paid for upgraded shingles, removal of old chimney, removal of old gutters/downspouts, and a couple misc. items. Overall, I'm very pleased with the process and outcome.