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 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 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'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!"

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!

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!

Bio-One's team were an incredible godsend during an extremely difficult and traumatic event. their communication is top notch, and they clearly lay out what they can provide for you or your family. they have a variety of services, but each job is met with genuine care and concern. Bill and his other team members are absolutely Wonderful people, patient and kind and hard working.

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.