BTLS - Biotesting Laboratory Services

What They Do

MoldMold TestingAsbestos

In Their Own Words

For over a decade, Biotesting, Inc. has been a trusted leader in environmental testing. BTLS (Biotesting Laboratory Services) continues that mission, delivering precise, reliable laboratory analysis with the same dedication to quality our clients have depended on. BTLS offers Flexibility, Consistency & Assurance for your Asbestos, Mold and Fire testing analysis needs.

Written by the business on its public profile. We have not verified these claims.

Before You Call BTLS - Biotesting Laboratory Services

1. Where do you think the moisture is coming from, and who fixes it?
2. Will you set up containment and negative air, and how will you protect the rest of the home?
3. Do you also do remediation? If so, who checks your work?
4. How many air samples will you take, and will you take an outdoor control sample?
5. Is your company licensed for asbestos abatement here?

California requires a state contractor license for most repair jobs over $1,000. Ask for the number and check it with the Contractors State License Board.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• Call a proAsbestos in Older Homes, Where It Hides and What Not to TouchWhere asbestos hides in older homes, why intact material is often safest left alone, how lab testing works, and what never to sand, scrape, drill or break.
• DIY with careAttic Mold on Roof Sheathing, Causes and FixesWhy mold grows on attic roof sheathing, how to find the cause, the fixes that stop it for good, and how to tell a cosmetic stain from a roof that needs work.