Saverio at Cornerstone is another one of those rare contractors that not only gets the job done well, but handles the business side of his work delightfully.
We own a downtown Toronto semi-detached home that was built almost 100 years ago, and the basement was always damp, had sloping uneven floors, low ceiling height, and old clay drain pipes. We wanted to make the basement dry, flat, clean, and to gain as much ceiling height as well could, while replacing all of our old drains and preparing for a finished basement.
Saverio at Cornerstone delivered all of it in spades! He arrived on-time for the initial quoting of the service, and knew exactly what needed to be done. He provided a written estimate for his work, and gave us all the details about what each line-item meant, and why we should consider doing it. He didn't try to "sell" us at all, just delivered the facts, and gave me the sense he had our best interests in mind.
We gave him a 1 week deadline to get everything done while we were on vacation, and when we arrived home everything was done to perfection. He kept in-contact throughout the week explaining what had been done and what still needed to be completed. We also gained the new uniform (higher) ceiling height that he said we would, and we were really happy with that as well. He even pulled out the half-assed job that a previous company we used to waterproof (also found her on Homestars) under out stairs, and replaced it with the full system he prescribed for the rest of our basement at no extra cost.
Overall, don't hesitate to use Saverio... you will not regret it.