Thank you for trusting us.
We're ready to serve you!

What's Next:

  • If this is an emergency, please call our office immediately for the quickest response possible 302-893-3595
  • One of our team members will contact you shortly to learn more about your needs and goals, and to schedule an estimate.
  • A remediation proposal will be created and tailored to your needs. The proposal will include estimated pricing, timelines, and processes.
  • Once the proposal is approved, our team of experienced and discreet professionals will get to work for you.
  • If needed, Bio-One of Delaware will also work directly with your insurance company and start the claim process for you.

You Can Count On

Compassion
Experience
Respect
decontamination and biohazard cleaning services reviews
User Reviews
We have had the best experience with Bio-one. They care about making sure the job is done right and that you are very satisfied with the work they have done.
Wanda Trice, Delaware, 03/2025
decontamination and biohazard cleaning services reviews
User Reviews
I give this group of respectful young people a 5 star out of 5! They were all so dedicated to their work! Great job Toby, Freedom, Oscar, Prison and Chris!
gayle linden, Delaware, 08/2025
decontamination and biohazard cleaning services reviews
User Reviews
They handled my job in a very timely and professional manner. I was more than pleased with the results, cost, and professionalism of the staff. I would highly recommend their services!!
daniell bullock, Hockessin, 03/2022
decontamination and biohazard cleaning services reviews
User Reviews
Bio One is an outstanding company! After a traumatic event, when we were faced with many unpleasant tasks, Bio One came through! Recommended by Victim Services, we turned to them for help during our most difficult days, and they guided us through the daunting task of cleaning and sanitizing our loved one’s home. Professional, yet personable, Ryan walked us through the process and explained every step of the way, even telling my children if the conversation became uncomfortable, to let him know or feel free to walk away. Dan and Oscar did an outstanding job despite unpleasant circumstances. Thank you both for handling this difficult task! Dan even texted me to make arrangements to drop the house key off to me at my home, and took a picture to confirm. If you are using Bio Ones services, it is likely after a traumatic event. Having a professional guide you during a time when you may not be thinking clearly is priceless. Ryan kept in touch and communicated clearly the process and next steps. I know he meant it when he said to reach out with any questions. I would recommend their services a thousand times over! Thank you all again from our family for assisting us and taking one huge task off our plates. We are forever grateful for your assistance!
Christine Clark, Delaware, 03/2024
decontamination and biohazard cleaning services reviews
User Reviews
Ryan and his crew took care of a job for us that would make Mike Rowe proud. Thank goodness for people like this that do dirty work and enjoy it.
Todd Kramer, Hockessin, 11/2022
decontamination and biohazard cleaning services reviews
User Reviews
I truly don't think 5 stars will ever be enough to rate this company. The darkest time of our family's life was handled with such care and genuine kindness. Thank you, thank you, thank you to Ryan and his team for giving us peace of mind throughout the process by communicating constantly and easing our burden during this tough time.
Tara Korjeski, Delaware, 03/2024
decontamination and biohazard cleaning services reviews
User Reviews
The staff was extremely helpful and kind, going the extra mile when they didn't have to. I would recommend this business to anyone.
Robert Barbour, Delaware, 06/2025
decontamination and biohazard cleaning services reviews
User Reviews
First, Ryan actually answers the phone. No answering machine! Dan and Tristan arrived right on time and went to work. They were fantastic to work with and addressed long standing problems with ease. I'm going to work with them going forward to solve some other problems I'm facing. Great experience.
D White, Delaware, 03/2025
decontamination and biohazard cleaning services reviews
User Reviews
Thank you and your crew so much for helping me out with the clean out of my grandfather's house. Ryan, your crew is amazing. I still can't believe that 12 dumpsters of stuff came out of that house.Thank you for your empathy and understanding throughout the entire project.
Stacey Hinton, Delaware, 09/2024
decontamination and biohazard cleaning services reviews
User Reviews
I called Bio-One after weeks of a horrible smell in our office like an open sewer. We had our HVAC company, 3 different plumbers, a roofer and 3 inspectors go through our building, and NO ONE could find the source of the smell!!! Finally, we had a client refer another plumber to our office. He showed up and did what all the other plumbers had done, but then he went above & beyond his job and was searching around in our drop ceiling. He was in the office where the smell was strongest and to our surprise, he found dead mice and a TON of mouse droppings and nests. I emailed Bio-One and that same day I received a call from Ryan. I explained our situation and he was able to get us on the schedule for an inspection to see if we needed remediation of the mice and their mess. He explained everything to me in great detail during his inspection and was able to get us set up for a clean-up appointment that same week. We had to move it to the following week due to some work deadlines. Kevin & his partner were here yesterday and if I hadn't let everyone in the office know they were here they would have never noticed them. They were very quiet & discreet even while running the machines they had to use including a vacuum cleaner. They were very professional and cleaned up everything after removing 4 drop ceiling tiles, rodent droppings and carcasses. They used a type of fog machine up inside our drop ceiling that dispersed a disinfectant that traveled through the entire building making any & all organic matter 100% inert in case there were any areas the mice were living that we hadn't noticed we wouldn't smell anything anymore. After over 7 weeks of sitting in the office for 12-15 hours a day 7 days a week (tax season we work almost around the clock) there was NO smell! NOTHING! The other people in the far side of the office made comment that their side of the building smelled ""fresher"" this morning and asked me if I had cleaned or vacuumed the common area. I was so happy that everyone noticed the lack of odor. If you need a company for clean-up or remediation I would 100% recommend Bio-One! They were in constant contact with me before & after each visit. While in the building they were extremely professional and polite. They were clean and neat and left the office space cleaner than they found it. They even put up 4 1/2 new ceiling tiles (I provided) to replace the 4 1/2 that they had to remove and dispose of at no charge. Having to deal with this rodent problem in an office full of women was a nightmare but Ryan at Bio-One answered all of my questions and made the removal very easy. I truly appreciate all they did for us! Thank You!!!!
Holly Lea, Delaware, 8/1/2024
After 20+ years in this industry, we know what works

We’re Trained, Experienced, and Ready To Help

Bio-One Video
CLOSE X

Find Us On

Nova Logo
Law Enforcement Torch Run for Special Olympics
FBINAA
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram