Contact Us

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.

Questions? Need a Bio-One service? How can we help?

    Trusted By
    Hazwoper Training
    IICRC Logo
    Fentanyl Remediation
    BBB Accredited Business
    Lead-Safe Certified Firm
    Asbestos Awareness Award
    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: 415-966-0319

    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
    Tyler Hayes, San Francisco, 4/2025
    The team cleaned up a house that a sick relative had left in a terrible state and did amazing work. We have never seen that house this clean in our lives. No matter how tough the job they will do it.
    decontamination and biohazard cleaning services reviews
    Pamela Gray, San Francisco, 4/2025
    Bio-One is a top notch company! They are professionals who know the challenges of people who desperate regarding their housing conditions that have gotten out of control. This team, lead by Diego are respectful, nonjudgmental, and deeply compassionate toward individuals suffering from an overwhelming situation. They treat all people with dignity. I highly recommend them to you!
    decontamination and biohazard cleaning services reviews
    Kathleen Boyce, San Francisco, 4/2025
    Due to the unexpected and sudden death of a sibling two other siblings and I had to immediately travel across the country to California to handle our sibling’s affairs and the disposition of his possessions. Upon our arrival at his apartment we were completely overwhelmed as to how to handle the enormous task at hand within the few days we had in which to complete it. Through an internet search I found Bio-One of San Francisco. The various services advertised seemed to be exactly what we needed. I reached out and my call was immediately answered by Diego. Within hours he met us at the apartment to assess the situation. He was very calm and reassuring about his team being able to get the job done in the timeframe we had. One day later his team arrived and the work began. The compassion, sensitivity and respect for the situation by each and every team member was far and above anything I could have hoped for. We simply could not imagine that this job could be completed in 2 days but it was! Not only did the team assist us in getting the apartment completely emptied but they very thoroughly cleaned it as well. I don’t typically write reviews but I had to write one for this company. I so highly recommend this company and their team to get the job done with the sensitivity and compassion needed to assist in the midst of grief and an incredibly challenging and overwhelming situation.

    Frequently asked questions

    Why should I contact Bio-One?
    If you're facing a situation involving biohazards, hoarding, or trauma-related cleaning, Bio-One is here to help. We specialize in sensitive, urgent cleanup needs and respond with compassion, discretion, and professionalism.
    What types of situations can I contact Bio-One about?
    You can contact us for help with unattended deaths, hoarding cleanup, suicide or homicide cleanup, sewage backups, rodent droppings, mold, and more. If you’re unsure, just reach out—we’ll guide you.
    How quickly will someone respond after I contact you?
    We aim to respond within minutes, 24/7. Your message is sent directly to a local owner or dispatcher, so you’re not left waiting in a queue.
    Do I have to be the homeowner or property owner to contact you?
    No. We regularly work with family members, landlords, property managers, social workers, law enforcement, and others who are involved in helping someone in need.
    What if I’m just not sure what kind of help I need?
    That’s okay. You don’t need all the answers—we’re here to listen and help you figure out the next steps. Just tell us what’s going on.
    Is my information kept private when I contact you?
    Yes. Every call, form, and message is kept completely confidential. We understand the sensitive nature of the situations we deal with.
    Can I reach you outside of normal business hours?
    Absolutely. Bio-One is available 24 hours a day, 7 days a week—including holidays. Emergencies don’t wait, and neither do we.
    What happens after I submit the contact form?
    A local Bio-One owner or certified specialist will contact you shortly—often by phone—to learn more and help schedule an in-person assessment or service visit.
    Do I have to pay just to talk to someone or get information?
    No. Contacting us is always free. We’ll give you honest answers, explain what we do, and help you decide what’s best for your situation—no pressure.
    How do I know I can trust Bio-One with something this important?
    We’ve helped thousands of families and property owners through some of life’s hardest moments. Our mission is simple: Help First, Business Second. We're here when you need us.