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I would give them 6 stars if I could, but only 5 are allowed! The team of technicians who came to our house were all friendly, understanding and polite. They guarantee their work, and they are true professionals. Thanks guys!

Bill and the crew from Bio-One Chicago are incredible. They are truly compassionate people and they perform their work with the utmost care, respect, and professionalism. In addition, they're extremely responsive, quick, and cost-effective. It's rare to come across a company - and a group of people - like Bill and his team at Bio-One.

I can't say how much I appreciate the work this team did for me. Life-changing is an understatement. They did an amazing job on what was coincidentally one of the worst days of my life. And they did it with kindness and great care. It was a reset I really needed, and I don't want to think about what that day would have been like without them.

I can't say enough good things about Bill and his team at Bio-One. Bill was very understanding about a difficult hoarding clean-out at my mother's house in Lake County, IL. The team worked diligently and discovered many valuable items I had no idea existed. They really went the extra mile to review, sort, and clean. Plus, the clean-out was very discreet to avoid any embarrassing conversations with the neighbors. Bill was in regular contact and is such an understanding and kind person. I interviewed numerous companies prior to selecting Bio-One. Bio-One clearly understood the human aspects of an unpleasant situation much more so than the other companies. And, based on the competitor cost estimates I received, I was very pleasantly surprised at the end of the job. Bill's estimate was accurate and ended up being a significantly better value than the next nearest competitor.

I can't say enough good things about Bill and his team at Bio-One. Bill was very understanding about a difficult hoarding clean-out at my mother's house in Lake County, IL. The team worked diligently and discovered many valuable items I had no idea existed. They really went the extra mile to review, sort, and clean. Plus, the clean-out was very discreet to avoid any embarrassing conversations with the neighbors. Bill was in regular contact and is such an understanding and kind person. I interviewed numerous companies prior to selecting Bio-One. Bio-One clearly understood the human aspects of an unpleasant situation much more so than the other companies. And, based on the competitor cost estimates I received, I was very pleasantly surprised at the end of the job. Bill's estimate was accurate and ended up being a significantly better value than the next nearest competitor.

I have managed building for a long time and have been fortunate to have never needed an extreme cleaning company before. That changed a week ago when we opened a wall to track down a leak in the basement and found a former bathroom that had a 5 foot tall pile of construction debris that filled the room. When we shifted the debris out of the building, we uncovered a drain. In the time it took to get a plumber in to plug the drain, we had a few rats enter the building. Exterminators made quick work of them. But they left their mark in the exposed room. Bill was great in getting Amanda out immediately to the site for an estimate. Amanda was very pleasant to work with and did a fantastic job getting that dingy room in the walls clean and sanitized. I greatly appreciate Bio-One and all their help and will be adding them to my service contacts list.

Bill and his team were great! Handled the hoarder situation professionally and respectfully. Thanks so much!

I've got to be honest, I never wanted to have to work with a company who does what these guys do. I don't think anyone does, but I'm so glad it was them. Discretion, transparency, professionalism... These guys nailed it. I'm one of the biggest skeptics of people these days for good reason, there are a lot of people out to make a dollar without regard for who they crush on the way and these guys are NOT THOSE GUYS. I know I'll need to use their skills again in a few years and they'll be the first ones I call. They'll be the only ones I call. 5 stars all day every day. Thank you guys!

Bill is a gem. What an incredible guy, and an incredible product.

I was very happy with the work done in my grandmother's building. The men that came to work were a blessing to me and my family. Very satisfied and would use there services again. Luis Gonzalez