How Much Does an Air Quality Test Cost?
A professional indoor air quality assessment costs $299 to $599 in the Metro East depending on how many parameters are measured and how many rooms are sampled. A basic mold-focused air test sits at the lower end; a full assessment covering particulates, VOCs, carbon dioxide and ventilation is at the upper end.
| Service | Typical cost | Notes |
|---|---|---|
| Mold-focused air sampling | $599 | Standard Inspection: 2 samples + outdoor control, lab included |
| Standard IAQ assessment | $399 – $499 | Adds particulates, humidity and CO2 |
| Comprehensive IAQ with VOC screening | $499 – $599 | Full parameter set |
| Per additional room sampled | $75 – $125 |
Consumer air quality monitors are useful for tracking humidity and particulates over time, but they cannot identify mold species. They complement professional testing rather than replacing it.
Related
Common questions
Do you charge for a quote?
No. Phone consultations are free, and if we do not think you need an inspection we will tell you so on the call.
What decides where I land in the range?
Four things: the square footage and number of levels, whether there is a crawl space needing access, how many laboratory samples the situation actually warrants, and whether you need same-week turnaround. We confirm the exact figure before we book, not after we arrive.
Is there a travel charge for my town?
No. Every town in our service area is charged at the same rate, from Edwardsville to Vandalia.
Can I get just the lab work without an inspection?
We do not recommend it. Samples taken without moisture mapping and an outdoor control produce numbers nobody can interpret, which is the most common way people waste money on mold testing.
Get a straight answer about your building
We test, document and verify. We never sell remediation, so we have no reason to find a problem you do not have.