My Highest Recommendation for Bio 911 I had a mold problem caused by a leaking faucet and roof at my Mom's house. The mold remediation company that I was referred to, went ahead and started tearing out drywall before any contract was signed. They also would not answer most of my questions and only sent a single photo of what they found and that was only after I asked them to send me photos a second time. I called Bio 911 and spoke to Kirill, the owner of the company. He told me that he doesn't like to take on jobs that are already being worked on by another company, but he told me that he would be happy to come out to inspect and evaluate my problem. He was incredibly thorough. He checked the drywall where visible mold had been seen, checked a nearby restroom even though no mold had been seen in there, the outside wall of the building adjacent to the affected drywall, and even the walls of an adjacent apartment. He detected moisture inside of the outside wall of the building, which was something that the other company had missed, and he outlined the steps needed to correct the moisture problem and mold issue. Kirill did all this work simply because he likes to help people. He did not charge me a penny. How often can you find someone that does things just to help people? It is super rare and I am giving Bio 911 my highest recommendation as a result. read more

Kirill was very pleasant to talk with about our situation. He was very straightforward and knowledgeable. This has been a learning experience for me. I do not know if we will end up using them for the immediate clean up but they are on the short list for when we need them later. read more

I spoke with Kirill about testing our downstairs rooms for mold. He came out once and was not able to give us a clear proposal with a bid without measuring the mold infestation more precisely. We paid a fair amount for 4 different rooms to be tested--$595.--no small amount. The test results came in and were sent to us but as non-scientists, we could not understand what was toxic and what was acceptable. At some point, we were contacted by John Watt from BioClean, a different company, who stated that Kirill had given him our info and he wanted to come out and look at our rooms. I had no idea who he was and wondered whether it was a scam. I asked Kirill and he explained that he worked with John. This is something that he could have explained to us when he was at our house. Shortly thereafter, Kirill spoke with us on the phone to go over the data which he said was a professional courtesy and complimentary as though he was doing it for free and wasn't included in the amount we had paid him. In other words, it was stated as though he was doing us a favor rather than it being included in the $595. we paid him. It was all very confusing. I also could not get a straight answer from him about John and BioClean. John came out and spent a good 90 minutes looking at the dust and mold in the same 4 rooms for which he was not paid. Thus although he works with Kirill, they are separate companies. He then sent us an estimate for cleaning the dust off first and then spraying to get rid of the mold. So Kirill's company does not get rid of the mold. I had to ask John alot of questions until I understood how it all works, something I think Kirill should and could have explained up front. We are not stupid---my husband and I are educated people but it felt like pulling teeth with Kirill to try and understand this process. And apparently we were not the first or only ones who had to ask John so many questions. I give Kirill a 5.0 for his work but 3 for communication. It could and should have been clear from the beginning. read more

Fast response with estimate provided for mold remediation work. Plus readily available to do the job.

Simply put 911 Bio Clean is EXCELLENT! After researching how to "declutter" a house overcome by hoarding, Victor met me at my relative's house and explained step by step how his company would approach this type of situation. He provided me with a transparent detailed bid & scheduled the job to fit my availability. The "Team" was amazing from the get go....over 6 hot Aug days they began diligently hand sorting through each room taking care to bring me anything important (some of which I didn't even know was there) and brought me things I previously explained I wanted to keep. The deep cleaning was also amazing - the house became what it was meant to be - lovely! They were well trained, attentive, considerate and trustworthy - all important factors in a situation like this. Victor's communications with me prior, during and after the job was impressive. He remained on the job the entire time supervising, answering any questions and keeping his Team safe and happy. At the end of the job Victor sent me a photo gallery from start to finish - truly surreal. Furthermore, the final invoice was exactly as he had quoted it to me. I recommend 911 Bio Clean for any of the services they offer.... exemplary customer service and work. Thank you to the "Team"!! read more

Best crew I have ever worked with. Quick response, honest and reliable. No hidden fees, very professional. Would do business again

Very impressed with the patience, communication and quality of work. Kirill responded to my request for a quote and inspection very timely. He came out and determined we did in fact have a mold issue in my kitchen. Very reasonably priced, quality work, great communication and follow up. I wish I took pics before and after. I was suffering with allergies for months, I have reason to believe it was due to the mold issue, per my doctors feedback. After the remediation was completed, I dont have those allergy like symptoms. I would highly recommend BIO911 for any service they offer. Thank you Kirill read more

This company does an absolute wonderful job of remediation and abatement. We interviewed numerous companies and found them on a website that listed certified companies. The owner of the company is very friendly and runs you through the entire process. Their pricing is up front and they will give you a breakdown of exactly what they are doing. The other companies we talked to were extremely unprofessional, unfriendly, and it was a complete wild card as to how much the pricing was going to be. They wanted money up front and did not provide a free consultation like Bio 911. Their work was very thorough and they got job done in one day. This company is highly recommended 10/10. read more

Kirill called me back, set up the appointment, came on time, fixed it within 24 hours. Easy to work with, professional, efficient, thoughtful. Less expensive than I thought it was going to be. Awesome. read more

Mike was a godsend, my mother's house had a hoarding problem with rodents in the garage and yard and in the basement apartment from so many occupants over the years. Mike came in and without making anyone feel judged in the slightest worked non stop to clear it all, such great work ethic and person. He's the best!! read more

Amazing job! Quote was half the price of another quote we got. They tackled a home that had 20+ years of hoarding and a rat infestation that was worse than anything I'd seen on the TV show. They did an amazing, professional job. Great communication. Couldn't have been a better experience given the nature of the problem. read more

Kirill was very responsive and very professional. He fit me on a very time tight schedule to check my home for mold. Was very generous with advice, highly recommended, and would definitely be contacting him again for further work when needed. read more

Kirill was very professional and courteous, identified and clearly explained problems and offered suggestions on solutions even when they weren't related to services that his company provides. I'm looking forward to working more with Bio 911 in the future! read more

After discovering a leak caused by faulty masonry in the bath, we had a serious problem with water being trapped in the walls and under the floor., Kirill was very helpful in getting us the equipment to dry and dehumidify our floors and walls. As well as getting us the right non chemical treatment to prevent potential mold from settling in. It was an emergency and Kirill was able to respond quickly, in a highly professional and knowledgeable manner. Would definitely recommend them for anyone seeking hazard remediation . read more

Krill was thorough and professional. I don't write many yelp reviews, but felt his service was worthy of writing a positive review.

We highly recommend using Kirill for your mold issues. He knows his stuff, is quick to schedule an appointment, is fast and thorough with follow-through. He does not over-dramatize the possibilities or try to up-sell you. We appreciated how he insisted on waiting until test results were available (only a couple of days) before suggesting a treatment plan. He educated us on how to treat the mold ourselves but also would have treated it for us. My husband has dealt with other mold remediation companies through work and ranks Kirill as the best he has encountered. He will be using him for future business projects. read more

Today I had the pleasure of meeting Mr. Kirill with Bio 911 to do mold testing. He was very efficient. I explained what was going on and how nervous I was. He began testing and found no moisture. Needless to say I was beyond happy to learn that there was no mold. And immediate relief and to top it off there was no charge for the inspection. Mr. Kirill was very professional and easy to Communicate with. I would definitely recommend this company to friends & family. read more

Bio 911 contacted me on the phone to help me with an issue I was having with my bathtub. They guided me through how to fix the issue myself and were super helpful and friendly. I would contact them again if I need help in the future. read more

Speedy service, good communication, clear quote. Individuals who conducted the work were courteous, punctual, and left the worksite clean. ​​​ read more

Due to concerns regarding a moldy smell coming from three windows in my home, I contacted Bio911 (https://www.bio911sf.com/). Kirill Mendelson came out the same day that I called and tested the walls around the windows that are giving off a moldy odor. I was ecstatic to learn there is a device that can determine moisture content of walls and that no walls needed to be opened. He found the moisture content to be between1 and 4% and said anything under 10% is not a concern. Kirill suggested that since we have had such a wet winter that I may be experiencing an off-gassing causing some odor. He suggested using a product called Concrobium to clean around the window sills. If I experience any health issues, testing of the air can be done to determine what mold spores may be causing a problem. There was no charge for the inspection and I found Kirill to be very informative, easy to schedule with, professional and as nice as could be. Bio 911 offers cleanup of extreme situations in addition to mold testing and remediation. I will contact BIO 911 in the future should I need any of their services. read more

I recently had the pleasure of doing business with Kirill with Spaulding. He was very knowledgeable and patient with the questions I had and walked me through the process of what needed to be done at my property. I was very happy with Kirill and his team members and the thorough work that was done. I would highly recommended Kirill and his team. Thank you so much for being, patient, kind understanding, sensitive to our needs. read more

I was unfortunate enough to have a serious infestation of rats under the house within a year after having the crawlspace completely cleaned up and a thick moisture barrier installed. Well my neglect for just over a year allowed quite a bit of damage, mostly droppings and urine. I had Spaulding come out clean up the droppings and urine, pull down any floor insulation which looked like the rats had been busy in those areas. I was expecting a lot of insulation to be removed but Kirill was very honest and indicated much of the insulation didn't require being removed and ultimately replaced saving me those extra costs. The job was done in a shorter period and the quoted cost reduced. Honesty and quality work. What more could one ask for when hiring a contractor. I would highly recommend Spaulding for your clean up. read more

I used Spaulding Devon for a partial clean out - that is, a friend who had a problem with hoarding and was being hospitalized for a short time. Her family wanted to organize and sanitize her home before she returned. Spaulding Decon took on this relatively small job and Kirill was very sensitive to the situation. They were thorough, organized and respectful- could not have asked for service more professional. They referred a carpet cleaner and provided a housekeeping service to put the final touches on the job. Thank you! read more

This company gave me back my life. After many years of "hoarding" (after back surgery that left me in chronic pain and depression) I couldn't find my way out of my over crowded apartment and due to my own body's limitations I couldn't do it by myself. I found Spaulding through an internet search for cleanup help. I was afraid to ask for help at first, but they were a blessing. It's a scary thing to ask for help when everyone else has judged you...but I am glad that I found Spaulding Decon, and Kirill and his team. Kirill and Andres were amazing (Mike who helped with the floor cleaning at the end was great also); these men worked really hard to get my place back into a liveable space where I can get around freely. My place is no longer cluttered with things or complete chaos like it's been for a decade. Kirill and his team were so kind and non-judgmental. I couldn't ask for nicer guys to help me out. I can't say enough nice things about this company. I highly recommend them!! read more

We discovered a mold issue in our master bedroom as we were doing drywall repair. I requested a quote from a few companies and Kirill responded immediately and provided a free estimate within 24hours. Other companies wanted to charge for an estimate. Him and his team completed the mold removal in 1 day and left our room cleaner than when they arrived. We were very pleased with quick response times, professional service, and honesty. read more

Kirill and Mike did an outstanding job on our project in San Francisco (cleaning and decontaminating a basement and detached garage following a rodent infestation). They arrived on time, did an extremely thorough and professional job using all the right equipment and tools, and were extremely professional. They even took the time to do a few things that were outside their scope, such as clean and disinfect an armoire that was stored in the garage. Their work and clean-up were immaculate; the spaces are not only decontaminated but spic and span. I could virtually eat off of the floors. read more

I am thoroughly impressed with the work of Kirill and his crew. My elderly mother's house had had a mice infestation and it was pretty toxic. They did an amazing job cleaning, sanitizing and organizing her home. Kirill kept me apprised of the process, was prompt, courteous and professional. I highly recommend Spaulding Decon! read more