We hired JSpec to replace the shingle on the front part of our roof. We have one of those 1920s Toronto semis with a flat roof at the back and a slanted roof at the front. We had hired JSpec to replace the back part a few years ago (they did a great job) and then we put off doing the front until it started leaking this winter.
Justin replied quickly to my panicked midwinter email, and he and the crew were here to do the repair as soon as it got warm enough (before the hyacinths even sprouted). They did everything in a day and left my front yard tidier than it was before they got here.
The roof looks great and Justin is a pleasure to work with. If I had any more roofs to repair, I would hire JSpec again!