Welcome to Mold HQ
What can we help you with?
Test a spot you’re worried about, or learn where moisture starts in a home and what to do about it.
Already have a test kit? Track your order and enter your sample detailsHow to take your samples (PDF)
Mail-in lab test
Mold test kits
Swab the spot and mail it back. An accredited lab analyzes it, and we post your results online and email you.
- Shipping both ways included
- Every kit comes with our guide, to read online
Room-by-room guide
The Practical Guide to Mold & Moisture
Where moisture comes from, what to check in each room, what a mold test can and can’t tell you, and when it’s time to call a professional.
- 12 areas, 74 spots to check
- Interactive guide plus a PDF copy