How do you test your house for mold?
John Thompson
Updated on January 08, 2026
A quick test for mold can be done when you dip a swab in diluted bleach (1 part bleach, 16 parts water) and dab it on the wall. If the spot quickly lightens (or keeps coming back after cleaning), assume it's mold.
What are signs of mold in your house?
Signs Your Home May Have a Mold Problem
- Rotten Smell. Is there a damp, musty odor reminiscent of the smell of old books emanating from your floors or walls? ...
- Spotted Clothing. ...
- Contaminated Carpets. ...
- Water Heater Hideaway. ...
- Allergy or Asthma Flare-Ups. ...
- Fungus in the Furniture. ...
- Warped Walls. ...
- Persistent Cough or Cold.
Are home mold test kits reliable?
The results lack enough credibility that lawyers, doctors, insurance companies, and remediation companies do not accept the results. Consumer Reports, in fact, rated four different brands of DIY mold tests “Not Recommended,” citing the following: “In some samples, the vials with media leaked over entire kit.Is there a mold detector?
Mold testing kits help you detect and identify growing spores in your home through samples collected via the air or from the surface in question. Some give you results right away, while others ask you to package the samples and send them back to a lab for a professional examination.Can you do mold testing yourself?
A: The Mold Armor Do-It-Yourself Mold Test Kit lets you test for the presence of mold in just 48 hours. If you find mold present in your test dish you can register your mold sample online and $40 to receive a lab analysis to determine the mold type.9 Signs You Have Toxic Mold In Your Home
What are signs of mold sickness?
If you're sensitive to mold, you may experience the following symptoms:
- sneezing.
- nasal congestion.
- runny nose.
- skin rash.
- itching.
- watery eyes.
- asthma.
- chest tightness.
How can you tell if you have mold behind drywall?
Visible Signs of MoldMold can have different colors and textures, so be sure to recognize them. Mold can be black, green, gray, white, or brown. Mold can even appear orange, pink or purple when it grows behind vinyl wallpaper. Another sign of visible mold is discoloration of walls, even if it has been painted over.