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We’re Here When You Need Us Most

Bio-One is the leading name in crime, hoarding scene cleanup, and biohazard decontamination services. When life gets overwhelming, Bio-One is ready to help.

Our mission has been simple for over twenty years: help first, business second—and that’s exactly how we show up.

Call Us 24/7
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Questions? Need a Bio-One service? How can we help?

    OPEN 24/7

    No matter when you call, we’re ready

    Our local Bio-One technicians respond quickly, walk you through every step, and handle the cleanup with care and respect.

    We follow a detailed plan to clean, organize, and safely remove any biohazards—restoring your space and giving you peace of mind.

    Need help now? Call us 24/7: 619-892-1744

    Schedule a Free Consultation

    Your Support Matters to Us

    If we’ve helped you through a tough time, we’d be honored to hear about it.

    Sharing your experience helps others know they’re not alone—and that trusted help is out there.

    Leave us a review on our Google Business Profile.

    Thanks for Trusting Us

    If you'd like to share your experience, we’d love to hear it.

    What our clients say

    decontamination and biohazard cleaning services reviews
    Erica Pecore, Chula Vista, 2/1/2025
    I can't thank Jason Madsen and Bio-One of Chula Vista enough for their incredible service during an emergency cleaning situation. When I found myself in a stressful and overwhelming situation, Jason and his team came to the rescue and handled everything with professionalism, care, and efficiency. They went above and beyond to ensure the area was cleaned thoroughly and safely. I’m so grateful for their prompt response and expert work. They truly saved the day! Highly recommend Bio-One of Chula Vista for any emergency cleaning needs. Thank you again, Jason and team!
    decontamination and biohazard cleaning services reviews
    r camacho, Chula Vista, 1/1/2025
    Hard working crew, and extremely reliable. We have several issues with cleaning out hoarder and dump sites, and the Bio-One crew is never afraid to tackle the nastiest of jobs. Their tenacity is appreciated, and I highly recommend them for these types of jobs and clean-ups. Thanks!
    decontamination and biohazard cleaning services reviews
    m. robyn kaminsky, Chula Vista, 12/1/2024
    Jason Madsen and his staff at Bio-One are punctual, flexible, friendly, and efficient. I had a really difficult personal situation and needed their services on short notice. Jason was understanding and helped me out when I was struggling to find anyone who would. The staff at Bio-One are professional and efficient and my job was done in just a couple hours. I would absolutely recommend their services to anyone who needs serious cleaning done quickly and professionally.

    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.
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