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Avatar for Bio 911

Bio 911

5.00(
17
)
Approved Pro

Bio 911

5.00(
17
)
Approved Pro
Super Service Award
Customers say: Quick response
48 local quotes requested
7 years of experience

Bio 911 is your trusted, local source for water, mold, and biohazard cleanup services throughout the San Francisco Bay Area. We are an IICRC-Certified firm that is ready to help you recover from water and storm damage, mold contamination, hoarding and crime scenes, and more. Our state and OSHA-certified staff use only the safest, EPA-compliant products to help clean and sanitize your living environment. We proudly offer 24/7 live calls as well as expedited response times for emergency situations. We also offer additional cleaning and support services designed to give you peace of mind throughout the recovery process. Since 2018, Bio 911 has helped homeowners and businesses remove and recover from harmful substances of all kinds. We are more than ready to help you. Fill out the form on this page or call us today to get a FREE, on-site estimate.

"vital information regarding source of problem was not provided in a timely manner resulting in additional expenses"

Nancy O on February 2025

Bio 911 is your trusted, local source for water, mold, and biohazard cleanup services throughout the San Francisco Bay Area. We are an IICRC-Certified firm that is ready to help you recover from water and storm damage, mold contamination, hoarding and crime scenes, and more. Our state and OSHA-certified staff use only the safest, EPA-compliant products to help clean and sanitize your living environment. We proudly offer 24/7 live calls as well as expedited response times for emergency situations. We also offer additional cleaning and support services designed to give you peace of mind throughout the recovery process. Since 2018, Bio 911 has helped homeowners and businesses remove and recover from harmful substances of all kinds. We are more than ready to help you. Fill out the form on this page or call us today to get a FREE, on-site estimate.

"vital information regarding source of problem was not provided in a timely manner resulting in additional expenses"

Nancy O on February 2025




KENCO construction and handyman service

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KENCO construction and handyman service

No reviews yet
36 years of experience

I have a handy man and construction (no job is to small! I offer senior discount and can complete your project promptly,professionally and with in your budget!!!! My name is Ken I am the owner -Workhorse with years of experience. I loom forward to hearing from you!!

I have a handy man and construction (no job is to small! I offer senior discount and can complete your project promptly,professionally and with in your budget!!!! My name is Ken I am the owner -Workhorse with years of experience. I loom forward to hearing from you!!


Avatar for Environmental Services

Environmental Services

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Environmental Services

No reviews yet
30 years of experience

A combination of expert staff members, certifications, experience, training, and specialized equipment make Environmental Services a prominent company in the Indoor Air Quality (IAQ) industry. With close to 20 years of experience, our company has successfully removed mold and restored properties to like new conditions. The services we provide are affordable, and we can work with any insurance company. Contact us through our online web form or by dialing 650-644-3730 to speak to one of our representatives.

A combination of expert staff members, certifications, experience, training, and specialized equipment make Environmental Services a prominent company in the Indoor Air Quality (IAQ) industry. With close to 20 years of experience, our company has successfully removed mold and restored properties to like new conditions. The services we provide are affordable, and we can work with any insurance company. Contact us through our online web form or by dialing 650-644-3730 to speak to one of our representatives.


Avatar for Complete Water Damage Extraction - Removal

Complete Water Damage Extraction - Removal

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Complete Water Damage Extraction - Removal

No reviews yet
Free onsite estimate

If your property has experienced any type of environmental disaster, Complete Water Damage Extraction - Removal - Restoration is here to help. No matter the extent of the damage, total remediation and restoration of the damaged materials are guaranteed. Here at Complete Water Damage, we employ only the most knowledgeable technicians, who have been cross-trained in every service we offer. The level of service combined with the competitive rates we offer keep us at the head of the pack of the environmental services industry. Water, mold, fire/smoke, asbestos and other hazards that have affected the structural integrity of your home or business are no match to our high standard of work. These factors may also affect the health of those who inhabit the space. All of the information describing our services and our company are located our website, as well as a form to request a call from one of our knowledgeable customer service representatives.

If your property has experienced any type of environmental disaster, Complete Water Damage Extraction - Removal - Restoration is here to help. No matter the extent of the damage, total remediation and restoration of the damaged materials are guaranteed. Here at Complete Water Damage, we employ only the most knowledgeable technicians, who have been cross-trained in every service we offer. The level of service combined with the competitive rates we offer keep us at the head of the pack of the environmental services industry. Water, mold, fire/smoke, asbestos and other hazards that have affected the structural integrity of your home or business are no match to our high standard of work. These factors may also affect the health of those who inhabit the space. All of the information describing our services and our company are located our website, as well as a form to request a call from one of our knowledgeable customer service representatives.


Avatar for EC-IR Mold Testing and Inspection

EC-IR Mold Testing and Inspection

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EC-IR Mold Testing and Inspection

No reviews yet
31 years of experience

The mold technicians employed with EC-IR Mold Testing and Inspection apply solutions exceeding industry standards for mold removal, air treatment and purification, area containment, leak repair, disposal of contaminated material, anti-fungal treatments and restoration of a property to pre-loss condition. With nearly 20 years of industry experience, including being an established mold training organization, EC-IR Mold Testing and Inspection is the leader in water and mold contamination detection and mold problem resolution.

The mold technicians employed with EC-IR Mold Testing and Inspection apply solutions exceeding industry standards for mold removal, air treatment and purification, area containment, leak repair, disposal of contaminated material, anti-fungal treatments and restoration of a property to pre-loss condition. With nearly 20 years of industry experience, including being an established mold training organization, EC-IR Mold Testing and Inspection is the leader in water and mold contamination detection and mold problem resolution.


DM Mold Inspection and Testing Services

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DM Mold Inspection and Testing Services

No reviews yet
31 years of experience

We at Damage Manage provide our clients with the highest quality of customer service and the most affordable prices in the industry. We provide the area with mold services, but our company also provides our clients with water and fire damage services. We can inspect, test, and restore properties of all sizes. Contact us today to learn more about our services and prices.

We at Damage Manage provide our clients with the highest quality of customer service and the most affordable prices in the industry. We provide the area with mold services, but our company also provides our clients with water and fire damage services. We can inspect, test, and restore properties of all sizes. Contact us today to learn more about our services and prices.


Christopher Carlson Construction

No reviews yet

Christopher Carlson Construction

No reviews yet
18 years of experience

Ive had 9 years plus experience working on high end (1mill plus) custom homes in napa under Vintage Buildes.Ive broken off on my own.I have all tools,workers and subcontractors needed for a project of any scope.Free estimates. We can discuss details of job to modify job cost(quick repair or done right, and different materials or techniques).I can bring pictures of jobs or specific pictures based on what exactly you want done. I have references. My rates are very reasonable for the amount of experience I have. I'm very creative for problem solving or cosmetic advice.

Ive had 9 years plus experience working on high end (1mill plus) custom homes in napa under Vintage Buildes.Ive broken off on my own.I have all tools,workers and subcontractors needed for a project of any scope.Free estimates. We can discuss details of job to modify job cost(quick repair or done right, and different materials or techniques).I can bring pictures of jobs or specific pictures based on what exactly you want done. I have references. My rates are very reasonable for the amount of experience I have. I'm very creative for problem solving or cosmetic advice.


Home, Commercial, Mold, Radon, Lead and Asbestos inspections. Travel may charges apply.

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Radon Detection and Reduction questions, answered by experts

The only way to determine if you have a radon problem in your home is to have professional testing done. You can buy DIY radon test kits, but these are sometimes inaccurate in certain temperatures and humidity levels, and they don’t paint the entire picture in terms of your radon exposure. Scheduling testing once every two to five years is best. You can also look out for the following symptoms, which, according to the American Cancer Society, are symptoms of radon exposure:

  • Shortness of breath

  • Cough

  • Tightness in the chest

  • Difficulty swallowing

  • Hoarseness

Short-term tests take 2-7 days, while long-term monitoring may require up to 90 days for accurate results.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

It is worthwhile to get radon testing done, especially if you haven’t in the past and don’t have active radon monitoring set up in your home. According to the American Lung Association, radon is a potential issue in all states, and testing is the best way to determine if it’s a current problem in your home. Radon testing includes professional tests that determine ongoing radon levels in your property, and it usually includes a mitigation protocol to help you decide what measures to take to protect your home and household members.

The El Sobrante, CA homeowners’ guide to radon detection and reduction services

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