I just had my basement waterproofed by Ohio State Waterproofing after numerous recommendations and I am very pleased with the outcome. OSW kept me informed every step of the way, the guys were professional and worked very hard to get the job done in a timely manner. I was impressed by the teamwork and communication between the crews. I highly recommend this company and am looking forward to being able to finish my basement and turn it into useful/liveable space. Thank you OSW!