O2 Environmental

What They Do

MoldMold Testing

• Clean air act services
• Air Quality Control
• Air Quality Testing
• Air Testing
• Cleaning And Restoration
• Home Inspection
• Indoor Air
• Inspection & Testing
• Local Mold Testing
• Mold Inspection
• Mold Inspection & Testing
• Mold Sampling
• Mold Testing
• Particulate Counter
• Remediation
• Thermal Imaging

In Their Own Words

Indoor air pollution is real. We test air for clean, safe environments. If you’re unsure whether you have mold in your home, our professional and certified mold technicians will conduct a thorough airborne inspection. This process will determine if signs of abnormal fungal ecology exists. Don’t pay for expensive remediation until you test! Protect your health and have your home tested for mold today. Detailed lab results within 24 hours.

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

Before You Call O2 Environmental

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?

Ask for a California contractor license number and look it up with the Contractors State License Board. Also ask for proof of insurance and industry certification for the restoration crew.

They list no storefront. Ask where the business is based and whether the crew is their own.

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.
• 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.
• DIY friendlyBathroom Mold on Grout and Caulk, and How to Stop It Coming BackHow to clean mold from shower grout, caulk and ceilings, when to replace caulk instead of scrubbing it, and the fan habits that keep it from coming back.