Types of tests
| Test | What it shows |
|---|---|
| Air sample (spore trap) | Spores in a measured volume of air, compared with outside |
| Surface sample (tape lift or swab) | Whether a visible stain is mold, and what type |
| Bulk sample | Mold in a piece of material |
| Clearance sample | Whether remediation worked |
What testing cannot do
- No set safe spore count applies to every person.
- One air sample is a snapshot, not a trend.
- Results change with weather and activity.
- A clean test does not rule out hidden growth.
Public health guidance generally advises that routine sampling is not needed when mold is visible, because the fix is the same. Testing is more useful when you smell mold but cannot find it, when someone is sick and you want a baseline, for real estate or insurance documentation, and for clearance after remediation.
Choosing who tests
In Texas, mold assessment is a licensed activity, and the assessor should be independent of any company doing the removal. Ask for the license number and what standards the lab uses. Testing follows a visual check, see mold inspection. If results lead to work, see mold remediation. If testing is part of a water loss, read water damage restoration in Garland, TX.
Ready to talk to someone?
Describe what happened and your ZIP code. You will be connected with an independent provider.
Frequently asked questions
Is mold testing worth it?
When mold is visible, testing may not change what you do. It is valuable for hidden mold, documentation and clearance.
How do I read mold test results?
Labs list spore types and counts, and a licensed assessor compares them with outdoor samples and conditions.
Can I use a home mold test kit?
Kits detect spores that are everywhere. They rarely give useful answers about how much is indoors.
What is clearance testing?
Testing after remediation to confirm the area is clean. In Texas, it is part of the process before a certificate is issued.