We recently hired Nusite to underpin and waterproof our basement and were extremely happy with the work done. The job started with an initial consultation with David Steinberg, who visited our house at the outset of the job to get a sense of the scale and complexity of the underpin. David was friendly, generous with his time and very knowledgable and we had a detailed quote from him within a matter of days.
After getting our permits (and working with Nusite's preferred engineer, Wesley Peter, who was also a pleasure to deal with) we were set to begin. We were worried about construction dust in our house so David specifically advised that we should wait for his best crew - a father and son team run by two gentlemen named Jakub and Marc, as they were his cleanest and best workers.
I'm glad we waited for them, as Jakub and Marc (and the rest of their crew) were the best contractors I have ever worked with. They were extremely considerate of our space and meticulously clean. The basement workspace was always immaculate and they regularly swiffered and vacuumed our first floor to minimize the dust. The work itself was great and done quickly with the job taking ~ 8 weeks all in.
Communication was also very good - Jakub checked in with me on pretty much a daily basis to keep me informed about the job, and was always available to answer questions at any time.
All in all it was a great experience, and I would happily recommend Nusite to anyone looking for any type of structural or waterproofing work in the basement.
EDIT: we have since used Nusite for some additional work - they dug and installed a window well for us also did some structural framing (the owner Geoff also builds custom homes). Once again the work was top notch and they were super responsive. The other trades on my job were very complimentary of their framing work too.