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16 Years
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Emergency
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Open 24/7
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Emergency Restoration Services in St. Louis
Bio Clean 911 has been a trusted provider of emergency cleanup and restoration services since 2010. Our team of IICRC-certified technicians specializes in mold remediation, water damage restoration, fire and smoke damage cleanup, and biohazard decontamination. We are licensed and insured to handle hazardous materials, including bloodborne pathogens and meth lab residues, following strict OSHA and EPA protocols. As an owner-operated business based in St. Louis, Missouri, we prioritize direct communication with clients and insurance companies to ensure seamless service delivery. Our 13+ years of experience, combined with 24/7 emergency availability, enables us to respond promptly to residential and commercial properties across Missouri.

We maintain rigorous safety standards, utilizing EPA-approved disinfectants and adhering to hospital-level sanitation practices. Our commitment to quality is reflected in our 100% satisfaction guarantee and partnerships with local law enforcement and public agencies. With over 1,000 successful repairs, we combine advanced equipment with compassionate service for trauma-related cleanups. Our competitive pricing model ensures cost-effective solutions without compromising on expertise or service quality.
Services
Mold Removal Water Damage Restoration Fire Damage Restoration Smoke Damage Cleanup Biohazard Cleanup Meth Lab Decontamination Crime Scene Cleanup Natural Death Cleanup Blood Cleanup Sewage Backup Repair
Served areas
  • St. Louis, MO, Chesterfield
Details
  • Year established: 2010
Highlights and features
  • Crime Scene Cleanup
Associations and certifications
  • IICRC
  • OSHA
  • EPA
What people say
Prompt, professional service Thorough mold removal Compassionate trauma cleanup Excellent communication Competitive pricing
Services
Mold Removal
Our IICRC-certified technicians identify and eliminate mold infestations using advanced remediation techniques. We address moisture sources to prevent recurrence while restoring properties to safe conditions. Services include containment setup, HEPA vacuuming, and antimicrobial treatments for residential and commercial spaces.
Water Damage Restoration
Emergency water extraction and structural drying services mitigate damage from floods, pipe bursts, or sewage backups. Our IICRC S500-certified team uses thermal imaging and industrial dehumidifiers to restore properties to pre-loss condition while preventing mold growth.
Biohazard Cleanup
Professional decontamination of bloodborne pathogens and hazardous materials following OSHA HAZWOPER standards. Services cover crime scenes, unattended deaths, and meth lab residues with compassionate service and hospital-grade disinfection protocols for complete safety.
Fire Damage Restoration
Comprehensive fire damage mitigation including soot removal, odor elimination, and structural repairs. Our technicians use specialized equipment to clean contents and rebuild damaged areas while coordinating with insurance providers for seamless claims processing.
Smoke Damage Removal
Advanced smoke residue removal restores habitability after fires. We employ ozone treatments and thermal fogging to eliminate persistent odors while cleaning HVAC systems and porous surfaces to prevent long-term contamination.
Questions
What types of emergency services do you offer?
We provide 24/7 mold remediation, water damage restoration, fire/smoke cleanup, and biohazard decontamination for residential and commercial properties across Missouri.
How quickly can you respond to emergencies?
Our team typically arrives within 2-4 hours of initial contact to begin mitigation, with full remediation crews following shortly after assessment.
Are your technicians certified?
All technicians hold IICRC certifications in mold remediation (S520) and water damage restoration (S500), plus OSHA HAZWOPER training for biohazard operations.
Do you work with insurance companies?
Yes, we're preferred vendors for most major insurers and handle direct billing, documentation, and insurance coordination to simplify claims for clients.
What makes your biohazard cleanup different?
We combine EPA-approved disinfectants with hospital-level sanitation protocols while providing compassionate service during sensitive situations like unattended deaths or crime scenes.
How do you ensure customer satisfaction?
The owner personally oversees projects, providing daily updates and maintaining open communication channels while guaranteeing work meets our 100% satisfaction standard.
Videos
Reviews (13)
Adam Bowen
Feb 13, 2022 Report
John was great throughout the process for us. He was available surprisingly quickly, and was able to walk us through the whole process ahead of time, so we knew what to expect. We asked for a "best case scenario" estimate and a "worst case" and ended up *almost* at the top, but managed to avoid some of the issues we were worried about, so we still saved some money over the worse case scenario. Overall, I'm grateful that his team helped resolve the mold issue, fixed the root cause, and proved that things weren't *quite* as bad as we feared. I'll definitely have him back to work another part of my house once I've resolved a couple of unrelated issues.
Paul Harris
Aug 19, 2021 Report
John and his crew did a great job cleaning up some serious mold and water damage in our basement, and we had them come back two summers later to get the mold out of our patio room. Carlos and Tony put in a long day on the latter, and when they were done, the room was completely clean and mold-free. I heartily recommend Bio Clean 911 and wouldn't hesitate to call them again.
Candace Bambei
Jun 20, 2020 Report
John Denny, owner, was fantastic to work with. I was in a difficult situation, as the St. Louis project had to be ordered from where I live in Denver. John's bid was competitive and he did everything promised, including starting and finishing on time. He was very professional and was a true pleasure to deal with. Clean on!
Nancy Burstein
Mar 04, 2020 Report
What a pleasure it was to work with John Denny and BioClean 911 for a mold remediation in our basement. John is a problem solver and his expertise, professionalism and responsiveness made this project run very smoothly for us. I highly recommend!
P. F. Ross
Feb 19, 2020 Report
John, Dave and Tim all did a great job treating a relatively small, but very noticeable area of mold in our basement. Professional, personable and punctual (hey, I just came up with that!). They came highly recommended by a neighborhood online board and I totally agree! Thanks, guys!
Kevin Halpin
Jun 20, 2019 Report
Very efficient and trustworthy. We received an email update each evening with what had been accomplished that day and the plans for the following day.
Krista Hanson
May 30, 2019 Report
My parents had major plumbing issue on Christmas. My mom called John first thing the next morning and he came over immediately to quote the work. He worked with the insurance company, was polite and thorough. Always was here with his guys. Couldn't be happier with the whole process.
Kevin Halpin
Nov 18, 2018 Report
Great job. Very efficient and trustworthy. We received an email update each evening with what had been accomplished that day and the plans for the following day.
Grant Bissell
Jan 02, 2016 Report
The crew from Bio Clean 911 did some mold remediation work in my basement in November. The cost was WAY less than every other company I asked for bids and the scope of work was exactly the same. John, the owner, is very friendly and easy to work with. He was very thorough in his explanation of what kind of work would be done and he kept in very good communication with me. His crew was polite and treated my home with respect. When the inspector came through and found a tiny bit of mold still in the basement, John and his crew came back out and cleaned it up within a day or so at no extra charge.
Sheila Stiles
Sep 10, 2014 Report
After receiving the news our house would need Mold Remediation, the hunt began for the best company to do the job right. Mold is a very serious subject. There is only one chance to get this right. I interviewed about 12 different companies for the job, going through them with a fine tooth comb. After all, this is a big investment and thats how we looked at it. Who can we trust was the question! TRUST is a big word in this day and age.

Many didn't fit the bill, AT ALL, after further review. I feared a botch job. The fact that we had been sick in our house due to the mold, it was of utmost importance. Then one day after months and months, I finally found the right company for the job. I instantly knew this was the one after meeting the owner John. Bio Clean 9-11 is a VERY professional company. They actually went the extra mile for my quirky demands. They respected our property. They showed up on time, and got the job done. I wanted to say thanks again to the crew and owner!
Sheila S.
Sep 10, 2014 Report
After receiving the news our house would need Mold Remediation, the hunt began for the best company to do the job right. Mold is a very serious subject. There is only one chance to get this right. I interviewed about 12 different companies for the job, going through them with a fine tooth comb. After all, this is a big investment and thats how we looked at it. Who can we trust was the question! TRUST is a big word in this day and age.

Many didn't fit the bill, AT ALL, after further review. I feared a botch job. The fact that we had been sick in our house due to the mold, it was of utmost importance. Then one day after months and months, I finally found the right company for the job. I instantly knew this was the one after meeting the owner John. Bio Clean 9-11 is a VERY professional company. They actually went the extra mile for my quirky demands. They respected our property. They showed up on time, and got the job done. I wanted to say thanks again to the crew and owner! ~Sheila Stiles Mold Despiser :
Krista Hanson
My parents had major plumbing issue on Christmas. My mom called John first thing the next morning and he came over immediately to quote the work. He worked with the insurance company, was polite and thorough. Always was here with his guys. Couldnt be happier with the whole process.
Candace Bambei
John Denny, owner, was fantastic to work with. I was in a difficult situation, as the St. Louis project had to be ordered from where I live in Denver. John's bid was competitive and he did everything promised, including starting and finishing on time. He was very professional and was a true pleasure to deal with. Clean on!!