Bio 911

5.0
73 Verified Reviews
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Learn about our screening process

100% Recommended

20 Years In Business

Company Details

  • Bilingual

Contact

755 Savannah Circle
Walnut Creek, CA 94598
http://www.bio911sf.com

Hours

  • Mon: 8:00 AM - 6:00 PM
  • Tue: 8:00 AM - 6:00 PM
  • Wed: 8:00 AM - 6:00 PM
  • Thu: 8:00 AM - 6:00 PM
  • Fri: 8:00 AM - 6:00 PM
  • Sat: Closed
  • Sun: Closed
View All Details & Credentials

Achievements

Seal of Approval
Top Rated Professional
Elite Service Professional
Best of HomeAdvisor
Five Years With HomeAdvisor
50 Homeowner Reviews

Service Details

  • Residential Work
  • Commercial Work

Areas of Expertise

  • Mold remediation
  • Disinfection
  • Hoarding Cleanup
  • Trauma Scene Decon
View All Offerings and Cities Served
Deals

Cost Information

  • Free Estimates
  • Credit Cards Accepted

Ratings

5.0
73 Verified Reviews
  • 5
    73
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    0

Highly rated for

  • Overall Rating
  • Value
  • Customer Service
  • Quality

Reviews

Write a Review
Showing 1-10 of 73 results
5.0 Whitney Q. Daly City, CA
2/11/2025

Kirill was thorough and factual without being an alarmist. Very happy with the service provided.

5.0 Martin M. Walnut Creek, CA
12/20/2023

Kirill called me right away and provided service the next day. Test results were shared quickly and customer service was excellent.

5.0 Stacey S. Redwood City, CA
10/14/2023

They were proactive and followed through on everything they said they would do quickly and efficiently.

5.0 Robyn C. Clayton, CA
9/27/2023

Kirill is very knowledgeable, and explains findings in way that I can understand and know how to proceed.

5.0 Heather C. San Francisco, CA
9/21/2023

Free estimate for mold removal in a closet On time cleaned afterwards and weâ re polite.

5.0 Nathan W. Walnut Creek, CA
9/20/2023

Excellent work! Fast and reasonably priced!

4.5 Joan S. Broad Brook, CT
8/21/2023

BIO recommended calling Krill@SpauldingDecon. He came out to look at the mold in the kitchen ceiling, then recommended John Watt from GoodHousingkeeping in Redwood City. The process was well organized. John Watt made our kitchen look like new!

5.0 Guy F. Pleasant Hill, CA
6/20/2023

We had an emergency, a plumbing, leak and water damage, as well as some mold. They were prompt in their response, courteous in their customer service, knowledgeable in their work, and responsive. All in all, they did a great job. Some of the items on the bill were a little pricey, but a very good option to handle an emergency circumstance.

Response from Company:

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5.0 Mattie M. San Francisco, CA
5/31/2023

They were great

5.0 Sam G. San Francisco, CA
5/19/2023

Amazing detail, service, speed, and communication!

Showing 1-10 of 73 results Showing 0 of 0 results
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Photos

Bio 911
8
Bedroom and living room
4
Mold remediation
10
Hoarding Cleanup

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