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Top-Rated Biohazard remediation specialists in Millbrae - Updated Nov 2026

Avatar for Bio 911
Bio 911
5.0(
17
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal

Serving Millbrae, CA and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"I cannot express enough gratitude for the outstanding services provided by Bio 911. Their dedication to restoring safety and cleanliness in the face of a daunting biohazard situation is truly commendable. From the moment they stepped in, their professionalism, expertise, and compassion were evident in every aspect of their work. Facing a biohazardous situation in my home was an incredibly stressful and overwhelming experience. However, Bio 911 swiftly took charge, putting my mind at ease. Their prompt response and clear communication throughout the process reassured me that I was in capable hands. The team at Bio 911 exhibited an exceptional level of expertise and attention to detail. They meticulously assessed the extent of the biohazard, implemented stringent safety protocols, and efficiently began the cleanup and remediation process. Their commitment to utilizing the latest technology and adhering to industry best practices was evident in every step they took. What truly impressed me was the compassion and empathy displayed by Bio 911. They understood the emotional toll that a biohazard situation can take on individuals and families, and they went above and beyond to ensure that I felt supported throughout the process. Their genuine care for my well-being was truly touching and helped alleviate much of the stress I was experiencing. Throughout the remediation process, Bio 911 maintained open and transparent communication. They kept me informed about their progress, addressed any concerns I had, and explained the steps they were taking to ensure the complete eradication of the biohazard. Their commitment to thoroughness and excellence was evident in the final result – a clean, safe, and habitable environment. I wholeheartedly recommend Bio 911 to anyone in need of biohazard remediation services. Their unwavering dedication to safety, their expertise, and their compassion make them an exceptional choice in times of crisis. Bio 911 not only restored my living space but also provided me with a renewed sense of security and peace of mind. Thank you, Bio 911, for your exceptional service and for going above and beyond to make a difficult situation much more manageable."
Mold contamination due to roof leak
Bird droppings contamination
Bird carcasses and bird droppings
Bird droppings contamination
Mold contamination due to roof leak

+29

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Moisture & Restoration Consultants, LLC
Moisture & Restoration Consultants, LLC
4.8(
61
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Millbrae, CA and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Dave was super helpful and steered me toward the real solution I needed -- not testing but direct remediation of a leaking window and wall. His experience really helped get the job done and to calm my nerves after I discovered the leak!"
Mold Remediation Project
Master Bathroom
Master Bathroom
Hall Bathroom
Hall Bathroom

+27

Response time4 hrs
11 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Mold Remedies
Mold Remedies
4.4(
30
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Millbrae, CA and surrounding areas

Approved

In business since 2002

Free estimates

Small jobs welcome

"I found Mold Remedies online and called them up and spoke and met with Richard. We made an appointment the very next day for him to inspect our mold problem. He was prompt and courteous, and he gave us great advice on how to address the issue. He did not charge us, as he told us we could fix the issue on our own. I like that -- he was trustworthy, fair and honest. I will hire him in a minute if I have a big mold issue in the future. (He also coincidentally took care of our neighbor''s home, who had a large mold issue, and they were very happy.)"
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection

+2

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for Quality Air Environmental Consulting, LLC
Quality Air Environmental Consulting, LLC
4.9(
10
)
Mold & Toxic Material Test - For Business

Serving Millbrae, CA and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quality work

"After the review I received a message from Brad and he was extremely professional and thoroughly explained why I required more samples due to the different textures and materials on my wall. I really appreciated that!"
Asbestos Testing in skyscraper
Private Residence Floor Survey
Response time1 day
Recommended by100%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Hazardous Waste Removal

Serving Millbrae, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We hired McCormick to remodel our master bathroom, and the process couldn’t have been smoother. Khaled guided us through everything, and his team was skilled and respectful. They handled the job efficiently, stayed within budget, and kept our home tidy. Now, our bathroom feels like a relaxing oasis, with high-quality finishes and a modern touch we love. McCormick’s attention to detail really made the difference, and I’d gladly hire them for future remodels. This experience was everything we hoped for."
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.
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for Mold Test Company Central CA
Mold Test Company Central CA
4.0(
90
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Millbrae, CA and surrounding areas

Approved

In business since 2015

Emergency services offered

Small jobs welcome

"This was not the first time using an Air Quality inspection company. They were help full, accessible, timely, accurate, and provided an analysis report that included a representative to review and answer questions. They also provided a referral to a remediation company that approached the issue in an efficient and cost effective manner."
Attic Ceiling
Drywall
Drywall
Insulation
Insulation

+66

Response time10 hrs
135 neighbors recently requested a quote
Recommended by85%of homeowners
Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Hazardous Waste Removal

Serving Millbrae, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I had my garden and bathroom remodel done. Albert and Samuel were professional, friendly, and a delight to work with. They're responsive and reliable. I also like the subcontractors whom they used on my project. They kept me informed of everything and I appreciate their excellent work."
Response time5 days
Recommended by77%of homeowners
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Showing 1-10 of 170
Biohazard Remediation FAQs, answered by experts

Yes, drywall mud can get moldy—though the presence of moisture is required for this to happen. That’s why the best way to keep your powdered drywall mud fresh for as long as possible is to keep it in dry storage conditions. If you live in a humid area, it might not make sense to stockpile a lot of powdered drywall mud before you’re ready to use it. As for premixed drywall mud, avoid opening the container until you’re ready to use it—and don’t expect it to last longer than six months.

Tree sap is not usually dangerous to humans or pets. But some trees do produce dangerous sap. Notably, ash, birch, cedar and similar saps can irritate the skin but aren’t dangerous. Sap from trees like the Brazilwood, Mahogany, Milky Mangrove or well-named Poison Walnut can be corrosive, cause nausea, or trigger those with asthma. But for most backyard trees, protective equipment like a sturdy pair of gloves should be fine.

Mold doesn’t require much airflow to make it out from behind walls and into your living space, making you sick. HVAC systems can actually pull the mold from behind walls and spread it through your home. While the mold may be out of sight, moisture transfer from the wall can also spread the mold from behind the wall into your living space and air. Any cracks in the walls or bad insulation only compound this effect. 

Eliminating mold from wood permanently poses a challenge as the mold spores have the ability to deeply penetrate the porous wood surface. While surface mold can be effectively eradicated with proper cleaning and preventative measures, it's difficult to guarantee its non-recurrence under favorable conditions. To prevent mold from reappearing, it is important to identify and resolve the root cause of the moisture that triggered mold growth initially.

Ensuring appropriate ventilation and a dry environment, or consider applying protective finishes such as sealant, varnish, or paint to prevent future moisture penetration and mold growth. Consistently inspect and maintain the area to keep the wood free from mold in the long term.

Turn off the water main immediately. Hire a professional plumber to check on your pipes and make any replacements so you avoid water damage. You don’t want to take any risks with flooding, so it’s best to consult a professional plumber as quickly as possible.

The Millbrae, CA homeowners’ guide to biohazard remediation services

From average costs to expert advice, get all the answers you need to get your job done.