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Crew did a great job cleaning my basement after a sewage back up… And Bill made the estimate process super easy too. Will definitely use again if needed in the future!!!!

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

Bill Muir and I met a few years ago. I have referred him to many people. Today he is doing work in my house, so grateful to know that the flood damage from the fish tank will be taken care of and my house will be whole once again.

Bill, Mike and Joe are phenomenal men and biohazard cleaners. My husband and I had mice in our house. Usually it's no big deal. We would get 1, put out the glue traps and in a day or 2, it was caught. Never to see another until the next year. In fact, for the last few years, we had zero. Last year was traumatic. We had more than one and they were avoiding the sticky traps. Unlike the other mice, they were way more active. We moved out of our home for awhile. We ended up calling pest control who came out and did a wonderful job. Then I thought we needed the house cleaned and sanitized by professionals. We couldn't do it ourselves as I am immunocompromised and have really bad asthma and my husband couldn't either. I did my internet research and came across Bio One. I spoke to Bill and we spoke as friends. Wasn't expecting that. I had called other companies who never called back or spoke to me like business as usual. Let me point out, I don't mind that. These days customer service is rare. I don't expect chit chat. I don't expect niceties. I do expect you to do your job.Bill sold me when we talked. I believe that he believes in knowing your client, if at all possible. Also, treating you with kindness and dignity. It was Mike who came to my house to look at the "damage" aka mice poop. He thoroughly explained what the process would be, how long, etc. He also answered all my questions. I got an estimate via email of the charges later. Let me say, because of Bill and Mike I went with their service. There is another company that would have charged me less but I feel like they didn't care about my husband and me and my concerns. If they didn't care about that then that attitude would carry to their service. Mike and Joe came to clean and sanitize. It took a few hours, it wasn't all day. (My home is @1000sqft) They had said one, maybe two days. I was shocked. I was more shocked when I went from room to room and saw NO mouse feces and even some of the things I had strewn around my house kinda "organized." They went above and beyond. Mike, Joe and I ended up just talking after and I was relieved. Having pests in your home causes embarrassment. It makes you feel dirty even though it may not be your fault. I did not feel judged or uncomfortable with Mike and Joe. I felt like they were here to help us. As one human would do for another. Go to their website, bioonechicago.com to see all the biohazard services they do and how you can contact them. You will not be disappointed. Bill, Mike and Joe are extraordinary people and will give you extraordinary results. They are also fair about their pricing. The only disappointment I had is that I didn't get to meet Bill. He's a hoot and a half!!

We moved into a new home and discovered some remnants of mice in our utility room/crawlspace. BioOne came out and did a fantastic clean up job! The peace of mind is priceless. Thank you BioOne for giving me the best peace of mind in our new home!

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.

Easy to work with, impeccable work, friendly, and compassionate. They totally transformed and resolved an extremely difficult situation and I am so very grateful. I highly recommend them!

Bill and Mike have been a true help to us during a time that has been filled with shock, confusion and grief. They are communicative and compassionate and we are so lucky to have them helping us in our time of need. The work they do is hard and they do it with grace, compassion and respect. Highly recommend if you ever are in need of this kind of service. Thank you so much Bio-One Chicago!

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!