We contacted this company based on the positive reviews. It seems as though that there aren't many companies who want to touch this type of work (so to speak). Or, if they do they are expensive. DJK wasn't much of an exception. They did respond rather quickly when I had first contacted them. They came out and inspected the suspected mold problem area in our bedroom. So finally about 3 weeks later, $1,330.00 and 2 hours of work AND for a 2' x 2' square hole cut out in our bedroom wall. And, they had sprayed a potent biocide chemical that hopefully killed our mold problem! They don't do any mold air quality testing at all. Hence, a lab is involved. DJK will come out in advance and use a moisture meter that is supposed to detect where the moisture sits. Then they zero in on the behind the walled suspect area. That problem was caused by another painting contractor who supposedly did caulk around our windows! Apparently not. Otherwise water wouldn't have seeped in and caused this issue. Oh well, another review and problem for another day. We think it's now gone. And we'll be happier for that part. They charge extra to repair the plaster wall with a drywall (NOT plaster). You'll have to hire someone else to do plaster repair if that is what you want. Don't forget about replacing the possibly contaminated wall insulation that they may take out and dispose of. Then figure either priming and painting it yourself after the plaster has cured. Or, hiring yet another darned contractor. In short, I think DJK does the job ok, but they ain't cheap. We will see.