I contracted Tall Basements to underpin, waterproof, install new drains and sump pump in my 100 year-old, semi-detached, down-town house.
I chose them in part due to their technical approach to the project, which was well explained to me at the beginning of the project. The team was well organized and methodological in their implementation of the various tasks. They were always polite, professional and helpful.
I was very happy with the results and would either use them again, or recommend them to others.