Swab Testing
Mold swab testing handles the textured, damp, and irregular surfaces where mold often grows without any visible sign.
Overview
Why mold swab testing matters
Mold grows in damp areas without always showing on the surface. Swab testing detects microbial growth on materials that are soft, porous, or moisture-prone, and is the right approach after water damage or in spaces that resist visual inspection.
Mold swab testing detects:
- —Hidden mold on porous or textured materials
- —Growth in damp spots like under sinks or around HVAC
- —Contamination on organic materials including wood and fabric
- —Mold that visual inspection alone tends to miss


Benefits
What you get from swab testing
A flexible method for hard-to-sample surfaces
- —Moisture-ready: Designed for damp and water-damaged materials.
- —Flexible: Handles uneven, porous, and irregular surfaces.
- —Confirmatory: Validates mold presence in hidden or subtle areas.
- —Lab-backed: Lab-verified results with species identification.
About
How mold swab testing works
Our certified mold inspectors gently rub a sterile swab across the suspect area to collect a sample, then seal it and send it to a state-certified lab for mold species identification and contamination level.
Our process includes:
- —Sterile collection from textured surfaces and porous materials
- —Coverage of damp surfaces and hard-to-reach spots
- —Lab work returning spore counts and lab-verified results
- —A mold inspection report with clear next steps

Mold inspection FAQ
Call For An InspectionContact
Book your mold inspection
Tell us what's going on and we'll respond the same day
Location
24H Mold Inspection of La Crescenta-Montrose
Phone
(818) 813-5595