COMPASSION. EXPERIENCE. RESPECT.

We Clean Tough Situations: Denver Suicide, Crime Scene, Hoarding, and Biohazard Cleanup

Bio-One of Denver helps families and communities after life’s most challenging moments. We clean what others can’t—biohazards, trauma, crime, and suicide scenes, hoarding, and more.

Our trained team shows up fast, works with care, and treats your space with respect.

  • Available 24/7.
  • Discreet arrival—unmarked vehicles upon request.
  • We work with insurance.
  • Locally owned and trusted.

Real help for real life: let us handle the cleanup, so you can focus on the path ahead.

Emergency response hotline

Get in touch with our 24/7 biohazard & crime scene cleaning team today

Call me directly:Gregg and Cheryl Chiasson
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Natalie Cox

Bio-One was an incredible company that I found under extremely unfortunate circumstances. They cleaned up after a very traumatic unattended d3ath and addressed it with professionalism a...

Beth Morganfield

Bio-One helped us deal with a very difficult situation. With one phone call that was answered immediately, I was able to schedule Bio-One’s services. They arrived on time and the clea...

Joseph S

The team helped my family member tame two years of long-Covid clutter in two days. From our first contact with Gregg to the end of the process, we were treated with dignity and understa...

Shawn Elvis Landsman

Great company good service. Nice people

Lincolnsize

Bio-One made a very difficult situation much easier. A relative had a communicable disease and passed away in the house but was not discovered for some days. Bio-One not only cleaned an...

Trusted By
Decon Firm Certified
Osha Certified
Osha Hozwoper Certified
CDPHE Logo
Fentanyl Remediation

Where Crisis Meets Compassion

Bio-One responds when families need more than just cleanup—they need someone who truly cares.
Five Star Experience
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Help first. Business second.

We provide compassionate, discreet biohazard cleanup, restoring safety and peace of mind in times of crisis.
Suicide Cleanup Icon

Suicide Cleanup

We clean with care, helping families begin to heal.

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Crime Scene Cleanup Icon

Crime Scene Cleanup

We remove hazards so you can move forward safely.

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Meth Lab Cleanup Icon

Meth Lab Cleanup

We fully decontaminate dangerous drug sites—fast and discreet.

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Blood Spill Cleanup Icon

Blood Spill Cleanup

We clean thoroughly to restore safety and peace of mind.

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Hoarding Cleanup Icon

Hoarding Cleanup

We are here to earn your trust and ease you into the hoarding cleanup process.

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Decomposition / Undiscovered Death Icon

Decomposition / Undiscovered Death

We handle the toughest scenes with dignity and compassion.

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Medical Waste Disposal Icon

Medical Waste Disposal

We offer medical waste disposal and train others on its safe handling.

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Emergency Vehicle Decontamination Icon

Emergency Vehicle Decontamination

We help protect first responders with deep, professional cleaning.

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View All Services

We respond 24/7.
Request a service now.

Bio-One of Denver

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    WE'RE READY 24/7

    Work with us

    Three simple steps. One compassionate team.
    1

    Call Anytime—Day or Night

    Reach out 24/7. A kind, trained expert will listen and guide you through the next steps.
    2

    On-Site, With Care

    We’ll arrive quickly, walk the space with you, and create a plan that fits your needs—with total discretion and respect.
    3

    You're in Good Hands

    We’ll handle the cleanup with care and follow through until you’re fully satisfied. We can even work with your insurance to ease the process.

    Ready For Anything 24/7/36

    Three simple steps. One compassionate team.
    Always here. Always ready. No matter the hour, you’ll reach someone who listens, cares, and knows how to help.

    Call us anytime—24/7/365—for fast, compassionate service from a local Bio-One expert.
    Schedule a Service
    Why choose Bio-One of Denver?

    Trusted When It Matters Most

    Because you deserve more than just a cleanup—you deserve care.

    Families, property owners, and first responders choose Bio-One for fast, discreet, and compassionate cleanup.

    People call us during some of their most challenging moments. We show up fast, listen first, and handle every scene skillfully and compassionately.

    • Fast, local 24/7 response
    • Trained experts who treat you with respect
    • Discreet, thorough cleanup from start to finish
    • We handle the insurance, so you don’t have to

    We’re here to help you feel safe again—and we’ll walk with you every step of the way.

    Call Us 27/4
    Your Local Cleanup Partner

    Rooted in the community. Driven by compassion.

    The person behind your local Bio-One isn’t just a business owner—they’re a neighbor who cares deeply about helping others through life’s most challenging moments. Trained, certified, and ready to respond 24/7, they lead a team committed to doing the right thing with discretion, empathy, and professionalism.

    You can trust that when you call, you get real help from someone who truly understands.

    Gregg and Cheryl Chiasson

    Gregg and Cheryl Chiasson are active, experienced business owners in the Denver area. They find fulfillment serving the community, providing jobs, and supporting non-profit organizations. Owning a Bio-One franchise is a natural fit to their values and mission of service to others. They hire team members who share these values, a key element in helping families experiencing a tragedy. Their son Sean, an outdoor enthusiast, resides in Bend, Oregon where he works as an accountant at a vineyard as well as a climbing and adventure guide. Their son Kyle, also an entrepreneur, lives in Denver and owns a successful water damage restoration business (Best Option Restoration). Gregg, having served in the ambulance industry for 30 years, is experienced in emergency response and understands the needs of a family experiencing a trauma. He spends his spare time mentoring youth and supporting several non-profits. Cheryl's career in hospital marketing also gives her insight to the needs of a family in crisis. She finds joy in helping others both personally and professionally. Cheryl excels at listening to people, recognizing their needs, and finding ways to meet those needs.
    Learn more about me and my mission
    Call Us 24/7

    Real People. Real Compassion.

    Our local team is trained, experienced, and here to help—no judgment, just support.

    We understand that calling us means something serious has happened. That’s why our local Bio-One team brings more than training—we bring compassion, clear communication, and respect every step of the way.

    • Highly trained and experienced technicians
    • Honest, in-person estimates
    • Discreet and professional service
    • Locally owned and operated

    You can count on us to handle it all—with care.

    Meet my team

    What our clients say

    decontamination and biohazard cleaning services reviews
    Deb J, Lakewood, 11/2022
    The team was professional and kept me informed It was easy working with them
    decontamination and biohazard cleaning services reviews
    Kate Woodworth, Lakewood, 10/2022
    Bio-One was there for us with every step of the way during cleanup after the death of a family member. The team was responsive, empathetic, organized, efficient, helpful and thorough. Highly recommended for biohazard remediation, deep cleaning, trash removal and overall helpfulness should you be in a position to need their services.
    decontamination and biohazard cleaning services reviews
    Raya Creel, Lakewood, 9/2022
    The people at Bio-One we're fast, efficient, and extremely flexible! They were also very professional and did a wonderful job cleaning and making our family members house looks great. Would highly recommend!
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    COMMUNITY

    Rooted in the Community, Ready to Help

    We live here, we care, and we’re proud to serve our neighbors.

    We love the people, places, and spirit of the communities we serve. That’s why we show up 24/7—to help our neighbors through tough moments with care, compassion, and respect.

    From local families to first responders, we’re honored to be a trusted part of the community.
    Serving Denver and Surrounding Areas
    Find your nearest Bio-One office

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    Frequently asked questions

    What types of situations does Bio-One handle?
    We clean biohazards, trauma scenes, suicides, unattended deaths, hoarding situations, and more—discreetly and with care.
    Are you really available 24/7?
    Yes. No matter the time or day, someone from our local team is always ready to answer your call.
    Will my information be kept private?
    Absolutely. Upon request, we arrive in unmarked vehicles and treat every situation with total discretion and respect.
    How quickly can you arrive?
    We respond quickly—usually the same day. We’re locally owned, so we can get to you quickly.
    Do you work with insurance?
    Yes. We’ll work directly with your insurance provider to help make the process easier for you.
    What happens when I call Bio-One?
    A kind, trained expert will listen, explain the next steps, and guide you through the process—no pressure, no judgment.
    Is your team trained for hazardous cleanup?
    Yes. Our technicians are fully trained, certified, and experienced in handling dangerous and sensitive situations.
    Do I have to be home during the cleanup?
    Not if you don’t want to be. We’ll work with your schedule and comfort level every step of the way.
    How long does cleanup usually take?
    It depends on the situation, but most cleanups take a day or two. We’ll give you a clear timeline upfront.
    Why should I trust Bio-One?
    Because we genuinely care. We’re part of your community and show up with compassion, professionalism, and respect—every time.
    24/7 EMERGENCY HOTLINE
    Schedule a Service

    Get in touch with our 24/7 biohazard & crime scene cleaning team today

    Bio-One of Denver

    Littleton Decontamination and Biohazard Cleaning Services

    9457 S University Blvd. , Littleton, CO 80126
    Visit Corporate Office
    ©️2022-2026