Bio-One of Chester County decontamination and biohazard cleaning services
484-995-3949

Compassion. Experience. Respect.


Chester County Suicide, Crime Scene and Biohazard Cleanup

24/7 death, crime scene, suicide cleanup and other biohazard cleanup services from trusted, experienced, and discreet professionals serving Chester County and the surrounding areas. Whether you’re in law enforcement, government, property management, or a local resident, Bio-One of Chester County has over a decade of experience serving you. We guarantee:
  • Complete discretion with unmarked vehicles and any special requests
  • Collaboration with your insurance companies
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484-995-3949
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Super friendly service, great customer service. They were even willing to help out when I wasn't able to afford service. Would highly recommend.
Gabrielle Mcfadden
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.
Sue P
"Rarely have I had service in any capacity like the EXCEPTIONAL SERVICE GIVEN by the Entire Team at Bio 1 of Chester County!!! Tom picked up the phone at 9:45 at night after my spending all day with another "" Cash only"" vendor . He spoke in clear Terms about the Bio Hazzard job & the insurance process. He made all this happen in Record time and did all the Insurance paperwork too!! Tom also recommended another vendor for a different service, and they were also stellar!! I JUST HIRED Bio 1 of Chester County AGAIN this week for another clean up, and my neighbor Vicky texted me to remark on what a fast and efficient job they did. I am placing them in my phone for future work, they are worth their weight in PURE GOLD!!! There are NOT alot of people in any line of work that could match Bio 1 of Chester County!!!"
Pat Atkinson
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.
Roberta Palmer
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.
Mary Lou Salemi

Trusted By

Micro Seal CMRC Certified
Bio-One of Chester County decomposition / undiscovered death service

Decomposition / Undiscovered Death

When the unexpected happens, we are here for you.
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Bio-One of Chester County suicide cleanup service

Suicide Cleanup

We aim to help by cleaning with discretion and competence.
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Bio-One of Chester County feces / urine cleanup service

Feces / Urine Cleanup

We tailor every plan to each unique situation.
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Bio-One of Chester County odor removal service

Odor Removal

You shouldn’t have to settle with foul odors.
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Bio-One of Chester County homeless encampment cleanup service

Homeless Encampment Cleanup

A vital service to the community, done with compassion.
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Bio-One of Chester County blood spill cleanup service

Blood Spill Cleanup

Proper training is required to fully disinfect a blood spill.
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Bio-One of Chester County

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    We're ReadY 24/7

    Work with us

    1. 1

      Establishing trust is key

      An experienced team member will introduce themselves, tour the property, and learn about your unique needs, expectations, and goals.
    2. 2

      We are mindful of personal property and valuables

      Our Bio-One of Chester County technicians make it a priority to try to find and save items of value such as wallets, keys, coin collections, legal documents, photo albums, baseball cards, or more.
    3. 3
      Your satisfaction is important
      We want to make sure you are satisfied and happy with our work. If for some reason something else needs to be done, we are here for you.

    Available 24 / 7 / 365

    We are here for you when you need us. For any Chester County crime scene cleanup and biohazard decontamination situation, we are available 24/7. Whatever you need, know that on the other end of the line will be a supportive, understanding, and responsive Bio-One of Chester County team member.
    We are here for you when you need us the most.

    WHY CHOOSE Bio-One of Chester County?

    We are here for you when
    you need us the most.

    Our clients choose us for our proven expertise in providing prompt, professional crime scene clean up services and restoring property to its original condition. Bio-One of Chester County specializes in all types of clean up including blood cleaning, death cleaning, murder clean up, suicide clean up, crime scene clean up and homicide clean up in the PA Area and throughout Chester County.
    Bio-One of Chester County services all types of trauma, distressed property, and biohazard scenes in communities throughout Chester County Area. We are your crime scene cleaners dedicated to assisting law enforcement, public service agencies and property owners/managers in restoring property that has been contaminated as a result of crime, disaster or misuse.

    Your Chester County Crime scene & Biohazard Cleaning TEAM

    Help first. Discretion always.

    As last responders, we discreetly remediate impacted 
    spaces so you can begin to move forward.
    Bio-One of Chester County owner, Thomas Gervasio
    Thomas Gervasio
    Owner
    Tom is the owner of Bio-One of Chester County. Tom grew up in New York and has a business degree from Loyola College of Maryland. He has worked as a Sales Manager in a variety of industries, from professional sports in New York to Unclaimed Property in King of Prussia. Coming from a military and law enforcement family, helping people is what drives Tom and what led him to joining the Bio-One family. Tom and his wife, Kathryn, have a newborn son Vincenzo, and live in Chester County. They enjoy spending their time traveling and hiking at Marsh Creek.
    Learn more about me and my mission >
    Call Me 24/7

    The right
    team for the job.

    Making the call to a crime scene, biohazard, or decontamination cleaning company is often due to an overwhelming, traumatic, and life-changing situation. My team is ready to answer the call with professionalism, experience, and compassion.
    • Experienced and trained team
    • Clear, supportive communication
    • Comprehensive cleaning approach
    • Locally owned and operated
    Meet my team >
    Bio-One Colorado Team
    decontamination and biohazard cleaning services reviewsCustomer Review Rating
    Megan Harbuck, Chester County, 02/2025
    Working with Tom and Bio-One of Chester County has been an absolute pleasure. Tom, the owner, has explained to me how their services work in great detail, in a way I can easily understand. The team is full of reliable people who get the job done right in an efficient manner. I can't recommend them enough.
    decontamination and biohazard cleaning services reviewsCustomer Review Rating
    Christine Errin, Chester County, 10/2024
    If I could give them 10 stars, I would. I can’t say enough about the efficiency and professionalism of everyone from the owner to the foreman to the work crew. Very respectful on every level and finished the job ahead of schedule. Highly recommended.
    decontamination and biohazard cleaning services reviewsCustomer Review Rating
    Terry Frey, Chester County, 07/2024
    Had Bio-One clean up at a friend's house. They are a very pleasant crew to work with and very thorough. Very prompt also. Was there within 24 hrs for the cleanup. I will highly recommend them. Tom the owner took his time to explain everything about the job from start to finish.
    decontamination and biohazard cleaning services reviewsCustomer Review Rating
    Rachel Harris, Chester County, 05/2024
    Tom and team did an amazing job and showed nothing but respect in what was a difficult situation. His responsiveness, professionalism and honesty made this a very easy process. My family would highly recommend!!!
    decontamination and biohazard cleaning services reviewsCustomer Review Rating
    Pat Atkinson, Chester County, 09/2023
    "Rarely have I had service in any capacity like the EXCEPTIONAL SERVICE GIVEN by the Entire Team at Bio 1 of Chester County!!! Tom picked up the phone at 9:45 at night after my spending all day with another "" Cash only"" vendor . He spoke in clear Terms about the Bio Hazzard job & the insurance process. He made all this happen in Record time and did all the Insurance paperwork too!! Tom also recommended another vendor for a different service, and they were also stellar!! I JUST HIRED Bio 1 of Chester County AGAIN this week for another clean up, and my neighbor Vicky texted me to remark on what a fast and efficient job they did. I am placing them in my phone for future work, they are worth their weight in PURE GOLD!!! There are NOT alot of people in any line of work that could match Bio 1 of Chester County!!!"
    decontamination and biohazard cleaning services reviewsCustomer Review Rating
    Matthew Fager, Chester County, 09/2023
    Bio-One helped us clean out a hoarding situation in a rental unit. They were quick to provide a price, very reasonable and were able to clear it out in one day. Would definitely work with them again.
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    COMMUNITY

    We call Chester County and the surrounding area home.

    Where we serve

    Bio-One of Chester County is owned and operated locally by Thomas Gervasio. Their office serves Chester County and surrounding areas.

    Why we serve

    We are passionate about serving Chester County and the surrounding communities with compassion, diligence, and professionalism. We are available 24/7 for your crime scene cleanup and biohazard decontamination needs.