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Find Biohazard remediation specialists in Berkeley

Avatar for Bio 911
Bio 911
5.0(
17
)

Serving Berkeley, 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 time7 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Moisture & Restoration Consultants, LLC
Moisture & Restoration Consultants, LLC
4.8(
59
)

Serving Berkeley, CA and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Dave Osborn of Moisture and Restoration Consultants was extremely knowledgeable about my dust and mold issues. He was available by phone to answer all questions along the way. He recommended the best vacuum cleaner to help with our continuing dust issues. I recommend him as an honest professional to help with all moisture and restoration issues."
Mold Remediation Project
Master Bathroom
Master Bathroom
Hall Bathroom
Hall Bathroom

+27

Response time10 hrs
13 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for PuroClean of Walnut Creek Remediation
PuroClean of Walnut Creek Remediation
5.0(
5
)

Serving Berkeley, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

PuroClean of Walnut Creek is a family-owned and operated property damage restoration company proudly serving Walnut Creek and Contra Costa County. We specialize in water damage mitigation, mold remediation, sewage cleanup, crawl space sanitation, odor removal, and reconstruction services.\n\nOur team follows IICRC industry standards and uses professional-grade drying and remediation equipment to ensure your property is restored safely and properly. We work with homeowners, property managers, and insurance carriers to provide clear communication and dependable service from start to finish.\n\nAvailable for emergency response.

Mold remediation
Mold remediation
Mold remediation
Mold remediation
Mold remediation

+3

4 neighbors recently requested a quote
Avatar for Quality Air Environmental Consulting, LLC
Quality Air Environmental Consulting, LLC
4.9(
10
)

Serving Berkeley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quality work

"Brad immediately called me back and was able to schedule an appointment within a few days. He was very knowledgeable about the potential of lead contamination in our old house. Great customer service and was very clean. I highly recommend!"
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.
4.6(
35
)

Serving Berkeley, 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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+1

Response time6 hrs
Recommended by18%of homeowners
Avatar for Mold Test Company Central CA
Mold Test Company Central CA
4.0(
89
)

Serving Berkeley, CA and surrounding areas

Approved

In business since 2015

Emergency services offered

Small jobs welcome

"Jeremiah came out and tested the air and moisture and other items to determine if I had mold in my basement. After getting the test results there was evidence of mold and he recommended a company that provides a do it yourself kit for mold remediation. (Not cheap). After getting the items and realizing that there was more work, it would have been better for me to let my insurance company handle this as I do have coverage for mold/fungi. Though having a professional do the work is expensive, from what Jeremiah mentioned, it does not guarantee that the work will be complete or the source of the problem taken care of. He mentioned most companies will take care of the mold but not necessarily the cause of the mold. For this I would have to contact another company."
Attic Ceiling
Drywall
Drywall
Insulation
Insulation

+66

Response time10 hrs
196 neighbors recently requested a quote
Recommended by86%of homeowners
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Biohazard Remediation questions, answered by experts

Not all molds are inherently harmful, but their presence can lead to health issues, especially for individuals with allergies or respiratory problems. Black mold often garners attention due to its potential toxicity. However, other molds can cause health concerns too. Regular mold, appearing in various colors like green, gray, brown, or black, can trigger allergies and respiratory problems. Prompt removal and prevention measures are essential, regardless of mold type, to maintain a healthy indoor environment.

Yes, mold can build up in a dehumidifier if not properly emptied and clean. Clean it every few weeks by removing dirty water, scrubbing with a mild dish soap, and allowing it to fully dry before reassembling. 

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. 

Yes, it is possible to over-dehumidify a house by removing too much moisture from the air. This can create an overly dry environment that negatively affects those with respiratory or skin issues, and may cause your skin, hair, and sinuses to feel dry. However, this is unlikely to happen with most modern dehumidifiers, as they are equipped with moisture sensors and adjustable settings. These features allow the unit to pause automatically when the desired humidity level is reached, preventing the air from becoming uncomfortably dry. In contrast, older or more basic dehumidifiers left running for too long could potentially over-dry the air. To avoid this, aim for a balance between removing excess moisture and maintaining a comfortable environment. You can often monitor your home's humidity levels using a modern thermostat for guidance.

In some cases, yes, insulating an unheated garage can lead to mold and mildew. The issue with insulating a garage is that the interior will warm up and cool down more slowly than the exterior air, which can cause condensation inside the space. Where there is moisture, there is likely to be mold and mildew over time. Installing a vapor barrier can help avoid moisture and mildew problems in an insulated garage.

The Berkeley, CA homeowners’ guide to biohazard remediation services

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