MoldHelpUSAWhat mold testing includes
- Outdoor air from the same visit as the control
- A basement sample and an upstairs sample
- A hallway sample for condo units where the building allows
- Swabs of any visible growth
- Results from an accredited lab, with the tester's interpretation
Mold Testing in Arlington: local factors
No federal or Virginia limit exists for indoor mold, so a result only means something next to outdoor air sampled at the same time. If you can already see the mold, the EPA does not see much point in sampling it, since it has to be removed anyway.
Houses
Compare the basement with the main floor. A basement that reads far higher points to storm water at the foundation; similar readings on every floor point to humidity or the HVAC system.
Condos
Compare your unit with the hallway. Higher counts inside, plus moisture readings on a shared wall, suggest the source is in your walls or the unit next door rather than the building at large.
Buying and after a cleanup
General home inspectors do not sample; if their report flags a damp basement or an odor, lab results during your inspection period settle it. See mold and the home inspection. After remediation, Virginia requires remediators to follow EPA or ANSI/IICRC S520 practice but sets no clearance number, so write the pass criteria into the contract and use an independent tester. Mold remediation in Arlington covers the work before that.
Price
Published 2026 price lists from DC-area testing firms put one area, with an indoor sample, an outdoor comparison, and lab analysis, at about $395 to $425. If the source of the moisture is still a mystery, begin with a mold inspection in Arlington.
Booking
Say whether it is a house or a condo and what you need answered; you will get a sample plan and a price before anything is booked. The call is free.
Mold Testing cost in Arlington
| Job | Typical range |
|---|---|
| Mold inspection, Washington area | $300–$1,045 |
| Mold test, one area with lab analysis | $395–$425 |
Licensing for mold testing in Arlington
Virginia does not license mold testers. Ask who collects the samples, which accredited lab analyzes them, and whether the tester is independent of any remediation company.