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I started working for BIO-ONE, under the guidance of Jason Madsen in January of this year. Being an Environmental Engineer, relocated from Northern California and former US Army Ranger I have been absolutely impressed with the level of professionalism and integrity that he has displayed. B.D.

BIO-ONE did a great job with rat feces 🐀💩clean up in my attic. My attic has a small crawl space and it was ALOT of work in a very confined area. They were friendly to me and my two dogs 🐕 🐶. They really took pride in their work and I"m very happy with the results. Thank you Bio-One!

Great service and friendly to work with in trying times! So thankful for their timeliness and attention to detail!

I didn't realize before meeting Jason, the importance and necessity of his service as an imperative part of a healthy and functioning society. What his business provides is the work that most people don't think about, the hard but real situations many elderly and debilitated people live in that are unsafe and unsanitary. Jason is very compassionate and takes pride in helping people improve the situation they are living in by cleaning up and helping his clients find resources to improve their wellbeing. He doesn't stop at what his service provides, but gives people options and solutions so that they can avoid another disaster. He is incredibly responsive and will do anything he can to fix the problem. Thank you Jason and Bio-One Chula Vista for your hard and important work.

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!

I was recommended to Jason by a real estate colleague. We had an important and urgent assignment by an out-of-town client. It was a 4-unit building that had been abandoned and was taken over by vagrants. Jason boarded the place up and then came back with his crew for two days to clear out a mountain of CRAP. In fact, he filled the largest U-Haul truck that I've ever seen with the remnants of many transients. I don't want to get too graphic, but there were a collection of hypodermic needles and the plumbing had been pulled out before, so there was dog and human feces in almost every room (I know... yuch!). Jason was vigilant about checking on the place and did several follow-up visits for us to re-secure the premises and I would highly recommend him for any clean out that you might face.

Bio- one is a new local company that is going to do a wonderful job for you in the worst of times. Give them a call.

Recently I had a need to disinfect a small rental property. Jason was on site within one hour of my call and was extremely professional providing the service. I feel very comfortable and confident with the result of his work.

I used Jason and his team a couple months ago and they were great! I was renovating my child home that I inherited after a family member's passing and it was filled with clutter and bulky furniture no longer needed. They were able to clear it out in one day with no issues. His pricing was reasonable for the work they did, and I was satisfied overall. Would recommend Bio-One.

Jason was easy to communicate with, prompt and very clear on what process he would be doing in the space. Thanks Jason!