AMAZING service. Tom, Tiffany, and Eric were absolutely phenomenal at getting rid of decades old pet urine smell from our basement. They were professional, showed up on time, and took care of this issue with the best possible outcome, keeping us updated on the progress throughout. Tom explained every step as they were doing it and gave realistic expectations. I went to check out the smell today, one day after they finished treating and sealing my basement, and there is ZERO pet urine smell! Tom was fantastic to work with, always responding promptly, and gave honest and helpful opinions and referrals for other work to be done. While I hope not to need their services again, they would be the FIRST people I would call should the need arise. HIGHLY HIGHLY HIGHLY recommend!

I needed a rapid turn-around on an apartment clean up for my Senior loved one who had an unfortunate fall into some self neglect and squalor. I conducted an internet search, and was able to reach Tom. I spoke with him in depth avout my family's needs. He was compassionate, and efficient. On the day of clean-up he and the crew were on time and eager to get to the job. Tom was honest and realistic about the job. The team were extremely patient and affectionate to the pets that were caught in the clean-up. Tom kept in touch throughout the clean-up until the end. I would refer them to anyone who finds themselves in this type of crisis needing a company that is professional, compassionate, trustworthy and efficient.

Amazing job and staff!! They cleaned and sanitized from COVID-19 my entire apartment and also my car. Their staff are very friendly and profesional. They have all the equipment necessary, very professional!. They were very nice to my dogs, they explain me all this products won’t harm them and they were very thoughtful on making sure our dogs would be safe the entire process. Definitely would hire their services again without a doubt!!

I would recommend Bio-One. Tom was professional in showing up when planned and keeping me informed of the progress cleaning out a hoarding situation in a house I was selling as an executor. Given the difficult situation, his crew worked quickly and in the end left the house clean.

Tom and his team promptly responded to my need for a home cleaning after a COVID quarantine. They were extremely accommodating despite my last-minute request. They made it to my house within a day of contacting them and kept me updated the entire time. Once at my house, they worked efficiently and even offered to extend their services to sanitize my car. They went above and beyond for me and also happen to be some of the friendliest people I've come across. I would highly recommend Tom and Bio-One!

First time home owners here. We decided to take the safe route before moving into the property and get the house sanitize due to covid 19. I did a Google search for the top best covid cleaning companies and found Bio-One Chester County. I was very nervous but after speaking with Tom, he put a sense of calmness to the conversation which made everything go smoothly. This is my first experience with Bio-One and I can not say enough great things about them. Prompt, nice, hard workers and very detailed! You can't go wrong picking Tom and his crew for your cleaning service. I would recommend their service to everyone. I will be sharing there information on all our social media.. A BIG THANK YOU to you guys for all you do during this pandemic and coming to help us out today. We appreciate your service. God bless and Please continue to be Safe out ther 🙏♥️

Tom's service was invaluable to me during a sensitive situation. He was personable, efficient, flexible, professional and his advice was appreciated. Tom and his team were reliable, thorough, and overall did an outstanding job with the decluttering and cleanout of a challenging residence. I would absolutely recommend Tom and his Bio-One company.

I was so pleased with this company’s quick response. I had 3 bids and this company had the best price of all 3. The projects manager was covid aware and prepared. Everything was explained in detail. I had an estimated with in hours. He worked with my deadlines. The team that arrived were professional and very friendly. They worked well together and even noticed another issue I was not aware of. And informed me of it. Great company good work ethic I highly recommend them.

Such a easy company to work with! Went above and beyond to help schedule an emergency cleaning! Staff were very kind, flexible, and solutions centered. Would highly recommend!!!

What an amazing experience. A member of my family has struggled with hoarding disorder for many years. It wasn’t until I came by to visit that I found that it had progressed to the point where her house was extremely dangerous and hardly livable—bags piled to the ceiling in every room, and every desk drawer and cabinet filled to the brim. Some windows were inaccessible and had not been opened in years. I called Bio One to inquire and the owner, Tom, thoroughly answered all my questions and walked me through the process and gave me cost estimates. Over the course of a few days, I watched Tom and his very respectful cleaning team transform her house from a garbage dump into a beautiful home. Bio One literally changed our lives for the better. I highly recommend them. They’re really the absolute best!!

I had to clean out my father's house and I don't know how I would have gotten through it without Tom and his fabulous crew. Tom was very patient and sensitive to the situation. He is trustworthy, dependable and an all-around good guy. I highly recommend Tom and Bio-One.

Tom and his team are absolutely amazing! I called at lunchtime to have my home cleaned following a COVID quarantine - they arrived the same day at 4:30! So accommodating. I would not hesitate to call Tom again in the future.

Bio-One Chester County is the best company to hire for cleaning up messes that are beyond your capability to handle. Tom estimated the cost, materials and number of days to complete the project. Despite the need to scale the job up during execution, the job was completed on time and on budget. Tom and his crew are great! They are punctual, professional, talented, experienced, humorous, and honest. When unanticipated problems arose during execution, Tom called immediately to discuss resolution options and provided guidance to lead me gently to what I believe to be the best option. You can't go wrong by hiring Bio-One Chester County

Definitely recommend! Timely communication and EXCELLENT customer service! Bio-One cares and they aim to achieve the right outcome for their clients! Thank you!

Tom was very responsive when I called on a weekend and set up COVID disinfection for a residence the next day! He was professional, friendly and delivered the services exactly as promised. I would highly recommend Bio-One.

Great experience with Tom and his team! He was prompt in coming out for the estimate and returning my phone calls/texts. In addition to doing a great job, all the employees have great attitudes and are awesome assets to his team. We could not have asked for a better experience. I highly recommend Bio-One Chester County!

We weren’t happy with the reason we needed his services (raccoon feces) , but Tom made things so much better. He answered my call promptly and was so helpful. He came at the appointed time and was incredibly efficient. There were a few hoops for him to jump through regarding our property, but he took it in stride and came out victorious! I highly recommend him! Totally thorough, accommodating and friendly.

Tom and his crew were very thorough and extremely easy to work with. They did a great job cleaning up my carpets and even went the extra steps to rent a rug doctor before coming to my house to steam clean the carpets after they were done. I would highly recommend this company. JScott

I highly recommend Tom and Bio-One. He was amazing from the first phone call. He handed a delicate situation for us and was very helpful for further recommendations. He was prompt and helpful in resolving the problems. We were in town for only a few days and he was quick to help us resolve all. He went the extra mile and did a great job! Professional, accommodating and very helpful in a stressful situation.

Amazing Service! When I simply didn't know where to turn when dealing with a situation in my elderly mother's home, Tom was there! I can't say enough about his professionalism, ability to problem solve and delivery of service. As well, he was able to promptly connect me to other needed services through his networking. I will call Tom again in a heart beat!

Tom was quick to respond and give me an estimate for cleaning out my cousin's home. Me and my cousin, who is ill, differed on what to toss/what to keep. Tom was great at stepping back while my cousin and I "negotiated", and stepping in when we needed clarification. He's understanding, experienced, knowledgeable. He and his crew were quick, personable and flexible!!!! If you're like me --embarrased about having someone see a "beyond messy" house - don't worry. Tom knows instinctively how to put people at ease. So quit procrastinating and give him a call!

When I called they gave a prompt response and set up an appointment for 2 days away and that was excellent. We settled on a date for the service to begin and they were prompt and on time. They're demeanor was excellent and I enjoyed the manner in which they performed their services. They were completely professional and respected my possessions and myself. If asked I would recommend them to anyone that required this kind of service.

Fast, friendly and efficient. From the first call till completed work the customer service was above and beyond. Plus Comet loved Tiffany (and my dog is an excellent judge of character.)

Tom Gervasio, the owner, is very professional and responded to our call quickly. He was flexible and able to work around the condo association’s restrictions for dumpsters. His crew was friendly and very helpful during the stressful situation. They were able to locate important paperwork despite the garbage, animal feces, etc. I highly recommend Bio-One.

So happy we chose them to do the clean-up work at our family member's home. Tom and his crew are true professionals. Could not be more helpful, accommodating, and informative. So patient in answering our many questions and had solutions for every concern. Always punctual and responsive. Very grateful to find such amazing service at a stressful time. Beyond our expectations!!!

Professional, Organized, Reliable Top Notch Services. Arrived on time and got to work immediately. Was really impressed with how quickly and thoroughly they got the job done in such a friendly manner. Will be calling them again.

Bio one Chester county Just recently did a job for me. I had dogs that Peed on a concrete floor in the basement. Several other companies were not able to guarantee they could get the smell out. Bio one Was able to. They Took the smell out and were reasonably priced punctual and very friendly. I would definitely recommend Bio-one if you have any type of pet odor or any odor in general.

Recently contacted B/O regarding a potential mold issue in an out-of-area college apt. Tom was quick to provide options and remedies vs. opting for a highly expensive professional testing outfit. End result: Mold issue minimized. Healthier environment for all roommates. Savings of 1/2 the professional testing charge. The professional testing would not have SOLVED the problem. You can bet, Tom & Bio One will get the call (first) should another home or business environmental issue arise. Thanks Bio One Chester County!

Tom and his team were completely professional and compassionate. They work quickly and provide excellent service. I would hire them again and highly recommend them for whatever it is you need!

Horrible reason for needing them, wonderful experience working with them. Fast, efficient, pleasant, and involved - nothing got done without my say-so, which was important. Highly recommended.

Big shout to Tom Gervasio for an outstading job that he performed on my vehicle. He was efficient , professioal and courteous.Thankyou for helping me through a difficult situation. Thanks again . Dawn Miller.

They did a garage clean-out of a bad hording situation for a client of mine. Wonderful job...fast and reasonable price. What more can you ask!

Extremely responsive and easy to work with. Would highly recommend. Was able to come same day and gave us peace of mind.

Great customer service. They answered our call right away and were onsite the following morning. The owner was very helpful. I would highly recommended this company!

They did an amazing job at cleaning & disinfecting my apartment. Definitely recommend😊

Handles sensitive situations with professionalism, patience, and kindness. Would recommend highly.

Super friendly service, great customer service. They were even willing to help out when I wasn't able to afford service. Would highly recommend.

SUPER SUPER EASY TO WORK WITH, VERY FRIENDLY.

Tom and his group made what was a really difficult situation manageable. They were respectful, fast, kind and did an amazing job. Anyone dealing with a hoarding/cleanout situation will not find a more compassionate or competent group of people. And they came in under estimate. Can't recommend highly enough.

Had an incident at our property and they were able to come out and clean the space day of. Really appreciate how quickly they cleaned the space.

I can not give Tom and his staff enough praise. They were wonderful and professional in all ways. Lance came out to give us the estimate we needed and was curious and a pleasure to deal with. Excellent customer service. I highly recommend.

Best money I ever spent. They made me feel so comfortable with what I needed done. They were so sensitive to me and my needs. They did the job in one day, and I will be grateful forever.