Look for mold when you notice a musty smell, see visible discoloration on walls or ceilings, or after any water leak or flood. DIY test kits cost $10 to $50, while professional mold inspection runs $300 to $600 depending on the size of your home.
In San Antonio's humid climate, mold is a common issue. The key is catching it early before it spreads to multiple rooms or causes health problems. Small areas can often be handled yourself, but larger infestations need professional remediation.
When to Test for Mold
Test for mold whenever you see visible growth, smell a musty odor that will not go away, or after any water intrusion such as a leaky pipe, roof leak, or flood. Also test if you or your family members develop unexplained allergy symptoms that improve when you leave the home.
Common areas for mold growth include bathrooms with poor ventilation, basements, crawl spaces, around windows with condensation, behind washing machines and refrigerators, and in attics with roof leaks.
DIY Testing vs Professional Testing
DIY mold test kits are available at hardware stores and online for $10 to $50. They use a petri dish to capture mold spores from the air. These kits can tell you whether mold spores are present but cannot identify specific types of mold or measure spore concentration accurately.
Professional mold inspectors use specialized equipment including moisture meters, borescopes, and air sampling pumps. They can identify the specific type of mold, measure spore counts, and locate hidden mold inside walls. Professional inspection costs $300 to $600 and includes a written report with remediation recommendations.
Cost of Testing and Remediation
Professional mold testing: $300 to $600 for a typical home. Some inspectors charge a flat fee, others charge per sample collected (typically $50 to $100 per sample). A basic inspection usually includes 3 to 5 samples.
Mold remediation costs vary widely. A small area under 10 square feet can often be cleaned by the homeowner using detergent and water. Larger areas cost $500 to $6,000 or more. Many homeowners insurance policies exclude mold damage unless it is caused by a covered peril like a burst pipe. Check your policy.
