Darby, Nick, et. al. handled all of our communications in a courteous and professional way - including prompt responses by phone or e-mail - from my original enquiry through to the completion of the job.
Darby provided estimates both for waterproofing my basement form the inside, and from the outside. I elected to go with the external approach, including excavation, installation of weeping tile; appropriate barriers and back-fill with gravel.
The job was completed as scheduled, to spec, and clean-up was good.
I have no hesitation in recommending them.