
Mold Testing & Air Quality Sampling
Third-party accredited air and surface sampling to identify mold species, spore counts, and indoor air quality risk.
About Mold Testing & Air Quality Sampling

Mold testing provides objective, lab-verified data on what species of mold are present and how airborne spore concentrations compare to outdoor baseline levels. This is especially important when occupants report health symptoms, when mold is suspected but not visible, or when a property transaction requires documented proof of indoor air quality.
We work with independent, accredited environmental laboratories — never an in-house lab — to ensure your results are unbiased and defensible for real estate transactions, insurance claims, or landlord-tenant disputes.
Testing methods include non-viable air sampling (spore trap), viable culture sampling, surface swab and tape-lift sampling, and moisture-content readings in building materials. We tailor the sampling plan to your specific concern rather than running a generic battery of tests.
Our Process
Sampling Plan
We determine which sampling methods are appropriate based on visible growth, symptoms, and property history.
Collection
Samples are collected using calibrated equipment and chain-of-custody documentation.
Independent Lab Analysis
Samples are shipped to a third-party AIHA-accredited laboratory for analysis, typically returning results in 2–5 business days.
Results Review
We walk you through the lab report, compare indoor vs. outdoor spore counts, and explain what the numbers mean for your remediation plan.
Mold Testing Frequently Asked Questions
How much does mold testing cost?
Standalone air quality testing typically ranges from $250–$650 depending on the number of samples and lab turnaround speed. Testing is often bundled with inspection services at a reduced rate.
Is post-remediation clearance testing required?
Most reputable remediation protocols (and many insurance policies) require third-party clearance testing after remediation to confirm spore counts have returned to normal, pre-remediation levels.
Can mold testing detect toxic black mold specifically?
Lab analysis can identify Stachybotrys chartarum (commonly called 'black mold') by genus and species, along with dozens of other common indoor mold types.
Mold Testing Available in These California Cities
Get a Free Mold Testing Estimate
Fast scheduling, transparent pricing, and certified local specialists anywhere in California.