Mark is a trusted source for Mold testing, inspection and general knowledge to help you avoid problems and solve problems when mold is an issue. He is a great resource for Southern California. read more

I had an issue with moisture problems and the tenant was concerned about mold. Mark sent one of his technicians came over right away and he did an extensive investigation and took air samples. He determined that we did not have mold and the tenant was satisfied and my client was happy. Thank you Mark read more

Impossibly professional, unbelievably compassionate, and insanely helpful and friendly. I could not have asked for better service, or nicer people to help. Mark and Brian were punctual, thorough, and more than patient/helpful when I had questions. They are the ONLY mold inspection company I will ever recommend to anyone in Southern California. read more

The Mold Guy was terrific. My landlord held back their mold report so I needed an independent party to evaluate my situation. Mark and his team tested the area carefully and proficiently. He took sample of the air and the walls. Fortunate for me, the mold was contained. He followed up with me and all worked out. Thank you, Mark! read more

I called mark for advice as he seemed to be the most likely person to know how to guide us through shoemaker protocol resources now my roommate has CIRS: what an outstanding professional. He knows all of the fine detail and also really seems to care. And I'm not even his client yet! Thank you Mark. read more

Louie is fantastic: organized, polite, clean and efficient. I 100% recommend him for inspections and service. Fantastic.

My puppy and I moved into an apt in the Marina and before long both of us ended up with pneumonia, coughing fits and other reactions to what we came to find out was mold in the apt. After explaining to Mark, "The Mold Guy" some of my concerns he made sure to come out to the apt right away and did a thorough inspection, he not only confirmed my suspicion of mold, but went as far as to describe the types of mold present, websites I could do more research if needed and above all he was very professional and pleasant. Not only was he ready and willing to answer all my questions before the inspection, even days and weeks after the inspection he gladly answered any further questions I had in regards to the inspection. thanks to Mark, my puppy and I were able to find another apartment and we are both doing much better! Thanks Mark! read more

We'd give Mark 6 stars if we could. Mark is a true professional and spent an hour on the phone with us before coming out and inspecting the apartment we were living in. The landlord neglected to fix our property for over a year and after seeing suspicious mold-type growth we decided to have Mark inspect our property. Mark is overly thorough in his service, detailed explanations, and detailed reporting. Mark has a passion for his service and cares more about the people he is helping than any amount of money, which is really hard to find in any professional services these days. Ultimately Mark identified severe living conditions beyond just the mold we were suspicious about, which led to our immediate evacuation of the property. If you have any concerns about a home you are living in or about to buy.... there is hands down no better person than The Mold Guy to perform your inspection. read more

Marks contractors service was an excellent choice in fact he gave us 5 percent off our rental properties thanks mark

I have been having mold issues in my apartment for a some time before I finally made the decision to handle it myself. I was expecting to make phone calls and play the "waiting game" for my mold appointments to come around but I was ecstatic to find out that my experience was going to be completely opposite. ONE phone call. ONE simple price. an appointment for the same day or whenever was convienent for me. It was great. Mark was easy to talk to and has handled so many mold situations before that he guided me through the process with ease and lots of great tips. He is not just the mold guy....he is the Mold King of Southern California. He is worth the call....especially since he saved me and my kids some serious health issues. read more

The mold guy is a true name. He has a great vision when it comes to solving mold problems without scaring the customer. His service is a true service and he does what he promises to do in his original proposal. Mark is a great man who works very hard to live up to his reputation. He come to your property and inspects very carefully and professionally to find any mold problems. He always gives the best advice. I shopped around and I spoke to several mold companies and I found him to the most professional at an affordable price. I want to thank him for saving my house and saving me a lot of hassle. I won't hesitate to recommend him to anyone who has mold issues. read more

I hired Mark to test our mold to medical standards in our apt. My husband had been diagnosed with acute myeloid leukemia 6 months before, and was about to get a bone marrow (stem cell) transplant at City of Hope. Nurses there told me that if we had mold at home, that he could not come home from the hospital because mold is the greatest household killer of post-transplant patients-- their compromised immune systems cannot fight infections caused by mold (or anything else). So it was imperative that we identify which strains we had, and get rid of them. . I was very impressed that Mark regularly goes to medical conferences where mold issues are being discussed, so he knew how potentially dangerous it was, and the level of testing and cleanliness we needed. His testing uncovered toxic black mold in the master bathroom (no door between it and where we sleep), as well as many strains throughout the apt. Mark worked with DeConProGreen, a mold removal co. that uses biological agents developed at Scandia National Laboratories to kill Anthrax mold, and guided them to ensure that all the mold really was killed before he would OK the job (one section had to be reapplied to meet his standards, which were far higher than those of the unlicensed tester our apt. owner wanted to use).. Mark also suggested we have our air ducts cleaned because they also had trapped spores--we had the ducts cleaned and encapsulated so they would not spew spores into our newly cleaned apt. Since mold had spread from the pressboard below each sink into the wall behind, Mark had them remove and replace the stained pressboard and part of the infected plaster wall behind it, underneath all 4 sinks. The work paid off. My husband has been very healthy for the past year, though his white blood cell count is still a fraction of normal (that can take years to repair). The only time he got sick was when I got sick first--he has never gotten anything from the mold, even after I replaced plants on the balcony (plants increase mold, so they all had to go during this year). I cannot say enough good things about Mark's professionalism, knowledge, and deep caring that he has to protect his clients' health. If you even suspect you may have a medical mold issue, he is the one to consult. -- Deirdre H. read more

Mark Levy, The Mold Guy, is terrific. He was able to fit us into his busy schedule today, Friday, June 26, 2015. Mark did an excellent job for us: he took down information from me over the phone and explained his pricing for a house visit and sample analysis; he showed up on time and was professional and courteous throughout the inspection and sample taking; he explained things to us thoroughly and worked with us to set up a future plan of action. If 10 was your top rating, we'd give Mark, The Mold Guy a 20. read more

We were recently in Escrow on a new home, and had Jason come out and test it for mold, as I am quite sensitive to it. I cannot say enough about how much we appreciate and are thankful for Jason who was extremely professional, diligent and so helpful in our process of testing for the presence of mold and than most recently going in for post testing after we concluded a mold remediation process. Jason was very helpful, and supportive, and his recommendations for remediation allowed for us to now be moving into a home that is clear of harmful mold. In addition, I would like to add that Nicole who helped with all of our scheduling needs, was also very sweet and responsive on the phone, these guys are great!! read more

Jason did an excellent of my mold problem. He went over the report completely. I would recommend the company to anyone needing their services. The other company I got a report from wasn't as comprehensive as theirs read more

I contracted the services of The Mold Guy during the procurement of a house in South Novato. They were referred to me by my physician in relation to my ongoing mold illness and chronic inflammatory response syndrome (CIRS). I was seeking a knowledgeable inspector who would provide me with some assurance that my prospective dwelling place would be safe for my family and me. Joseph Bibiano-Raschke exceeded my expectations. He is knowledgeable, experienced, and very thorough. My realtor and I had never seen a more detailed and well-documented inspection report. Joseph was also generous with his time and made himself accessible to answer questions after the inspection was completed. He was a real pleasure to work with. I was also very pleased with the communication and coordination facilitated by Nicole Levy. She was fast, responsive, and informative. I plan to use these guys in the future and I highly recommend that you do too. read more

Mark is absolutely incredible! As you can see by his 5 star rating it really doesn't get better than the work he does. My roommate and I got very sick and found a leaking AC to be the culprit. We had Mark come and test the mold to see if it was toxic or not and sure enough there was a large trace of toxic mold. We were able to get out of our lease and move somewhere else thanks to Mark's thorough investigation and tests. Not only was he friendly and professional he always went above and beyond by checking on us and calling to make sure we were doing better since we got out of the house. Talk about a caring man! I would recommend Mark to anyone who is sick and looking to find an expert to check their living space for mold. It's serious stuff and not to be messed with! Thanks for everything Mark!! -Mandy & Lindsy read more

I contacted The Mold Guy last fall (2016) after buying a condo. Initial mold tests I performed myself came back clean, but a few months after moving in I noticed a bit of mold on the kitchen baseboard. Since I am extremely mold sensitive, I decided to have a complete inspection. The Mold Guy was recommended to me by my doctor. Joseph Bibliani-Raschke came out within a few of days of my call and conducted a thorough and detailed mold inspection from bottom to top. He identified several areas of water damage and tested for mold via air, dust and swab sampling. Unfortunately, several areas came back positive for toxic mold. Joseph's detailed report helped me understand the results and identify necessary remediation. Joseph referred me to a qualified remediation company and stuck with me through the stressful remediation process, coming back several times to retest. He even agreed to come out to meet the HVAC cleaning company on their second visit after doing an incomplete job the first time. Finally, several months later he was able to give my home a clean bill of health. Joseph is not only knowledgeable and professional but he is also polite, considerate and reassuring. Mold remediation can be a stressful process and a good support team is invaluable. The Mold Guy and Joseph are good folks to have on your team. I will use them again, if necessary, and highly recommend them to anyone who suspects they have mold in their environment or has unexplained chronic health issues. read more

Phenomenal service from very professional and knowledgable guys who run their business extremely well. They are very honest and straight forward and will not do tests that are not necessary to just charge you. I will for sure use them again on a personal and professional level. They are health oriented and are able to not only find the infestation but evaluate the source and pathogen and guide you to a treatment facility and mitigate the problem itself. read more

My wife and I noticed some dark growth in our master bathroom and were not getting any answers from our landlord - We were recommended to Mark by another mold inspector and immediately called him and had him test our apartment the very next day. He was honest, professional and assisted us in finding out what we had and how to deal with it. His expertise is unsurpassed and his work is top quality. He was available throughout the whole ordeal with our landlord and was helpful in directing us in the next steps with remediation and the cleaning of our furniture. I have recommended him to others and he would be the first person I called in the event I ever come across mold again. I think it says a lot that another mold inspector would recommend him and it was a recommendation that was definitely warranted. read more

What a fantastic guy! Mark saved me from toxic mold health problems when my landlord was being less than helpful, and my doctors were baffled. He went way above and beyond the call of duty. Thanks for helping me get my life, and health back!!! read more

Mark is SUPER HELPFUL... He has helped my husband and with his precise knowledge and we can't thank him enough. If you want a honest opinion and someone who will really help... CALL MARK! THANKS soo much!... (He is very quick as well, called and he said he could come out that same day.) WOW! Thanks -Brit and Kenny read more

Jason and Mark are professional, courteous and extremely helpful. I strongly recommend them not only because they know what they are doing, but also because they will go the extra mile to provide great service. Our problem occurred while I was travelling out of the country. They were informative without having to resort to scare tactics. They took care of the problem and provided everything we needed to get it resolved expeditiously. As a father of two and pet owner, I very strongly recommend them to take care of your problem in a quick and affordable way. read more

I began to notice symptoms such as extreme congestion, burning and watery eyes, and difficulty breathing which occurred only when I was in my apartment. Around the same time I had leaks in my bathroom and kitchen from the upstairs unit. The landlord was slow to fix the leaks and the symptoms continued and worsened over the fall. After doing research online I became concerned about the possibility of black mold. I informed the landlord and he became extremely belligerent and uncooperative. After living in anguish for another couple of months I decided to take matters into my own hands and have a mold test. I found all the great reviews for the Mold Guy and decided to give a call. Mark spoke to me and explained everything about the testing procedure and the implications of having black mold in your home. I explained to him that I don't own the property and I really got the sense that he's just interested in helping people out and was very sympathetic to me and my situation. Mark recommended Jason who came out to conduct the test at my apartment. Jason was very professional and knowledgable. The results came back in a couple of days and it turns out I have black mold in my apartment. They gave me a thorough report from the testing lab and a report with pictures and their own observations in the apartment. Mark then gave me advice about how to proceed and really took an interest in helping out in the aftermath as well. There's really not much more to say except these guys really know what they're doing and make you feel like there are good people out there in this world. Highly recommended! read more

During inspections on a house we were buying, we discovered mold in 5 places including the dreaded 'black mold'. A friend told me his client had the black mold and that Mark Levy stepped in and calmed her nerves while helping her determine the best course of action and he was awesome for her - getting the mold remediated while also looking into what caused the mold. With that, I called Mark. The guy is sharp and gives it to you straight. He does his own investigation of your entire house and discovers other issues you should give consideration to - for example, he found fiber glass in our air vents and so we knew we had an issue with the insulation. He also found moisture issues that were sometimes part of the cause of a mold problem or drew attention to window leaks, pipe leaks, etc. I had already spent a ton on a mold specialist who had had his own findings, but Mark Levy went beyond that because he is all about mold and moisture issues, but he does such an investigation into what's happening in your home that it's like having an internist looking at your house to see how it's all running. Since his visit, I have made tons of improvements to my house based on his recommendations. More importantly, I was able to then investigate places he pointed out that no other inspector saw as problems - and I discovered dry rot and that fiber glass in the air vent issue - things nobody else had seen and I had 8 different inspections between mold, termite, foundation, general inspection, plumbing, roof, chimney and sewer. This is a long review, I know, but Mark Levy was an awesome addition to my team and I feel strongly about the experience. read more

I could not have found a better guy to do the mold test in my apartment. Mark and Jason very patiently explained things to me, they responded promptly to both my emails and voicemails, and most of all, the way they treated me showed me how much they CARE. When mold happens, it's frightening: the symptoms, the smell, the complexity of it all. When I got the mold report, it first appeared completely overwhelming. It seemed like one has to have at least a Master's in Mold to even begin to understand it. But when I called Mark, all it took for me to understand the results was for Mark to say, "Just compare everything to the Outside sample." Once I learned this, everything became chrystal clear in terms of numbers inside vs. outside. On top of everything else, Mark's voice has very calming quality to it. When I speak to him, I feel that I don't just have an expert, but a human being who cares about me. To sum it up, if you need a mold guy, Mark is The Mold Guy who will help you with his knowledge, expertise and care on top of it all. read more