Very much unprofessional and dishonest, stay away. We had Private Sewer & Water come out to fix a minor seepage issue in our basement, nothing too serious, just one small area of our wall when we'd get a lot of rain or after a big snow melt, more of a nuisance than anything. We were assured that installing new drainage tiles would fix the issue and they would be done in a day. Long story short, after a day of jack hammering up the floor, leaving a mess that took hours to clean (topped off by the puddle of antifreeze that one of the cars leaked on the driveway), and over $1000 wasted, an entire wall is seeping water every time it rains. Couple weeks later, one of these guys comes back, says he'll come back with his crew on that Thursday morning (this was on Monday), lied right to my face and never showed up, all calls and emails have since been ignored. And for the record, this is not a business with an A+ BBB accreditation, they are rated an F, with numerous unresolved complaints.
What more can I say? Unfortunately this guy checked the BBB after he got screwed.