I hired Crownseal 6 years ago upon a friend's recommendation to repair a basement leaking situation. At the time, I didn't know about Homestars review services, so I didn't log a review, so this is a catch up review.
I was extremely happy with the professional workmanship of Randalls. He riped out the drywall and concluded that the pole holes of the 2 basement walls were leaking. This spanned about 20 feets of wall length. He repaired from the outside (vs inside repair) by digging out all the soil, mended the holes, sealed with tar and special plastic sheets. My neighbours who witnessed the process told me that they brought in a team of workers and a strong digging machinery. They finished the complete job in a day or two. They put back the soil that got digged up.
Crownseal repair was effective. The 2 problem walls had absolutely no leak after the job. In terms of pricing, they charged me market price when compared to the other 2 quotes I got. And I don't mind paying a contractor market price as long as the work is effective and efficient and achieves the objective. I am more than happy to recommend this professional company.