Short answer
ERMI is a DNA-based analysis of settled dust that quantifies 36 mold species and produces a relative index for the building. It is useful for chronically ill occupants and for buildings with a long water history, and unnecessary for a straightforward recent leak.
Because dust accumulates over months, ERMI reflects a building's history rather than its condition today, which makes it a poor tool for verifying that a remediation worked — clearance testing does that job.
We also offer mycotoxin, VOC, allergen and bacteria testing when a physician is involved and a whole-environment picture is needed.
Why it matters in San Diego
For most San Diego homes, finding the water source is more useful than an ERMI score.
How we handle it
We start with a free inspection and recommend testing only when it helps.
Signs it's time to call us
- A doctor asked for it
- Very sensitive occupants
Mistakes to avoid
- Using ERMI to find mold locations — it can't
Related questions
What testing do you offer?
Air and swab samples: $195 for 2, $295 for 3, $75 each additional.