When DIY may be reasonable
EPA says that if the moldy area is less than about 10 square feet, in most cases a homeowner can handle the job by following proper cleanup guidance. Hard surfaces can often be scrubbed with detergent and water and dried completely.
When professional help makes more sense
- Growth covers more than a small area
- There has been extensive water damage
- Sewage or contaminated water is involved
- HVAC contamination is suspected
- Mold is hidden or difficult to access
- Porous building materials require removal
Do not rely on bleach as a default solution
EPA does not recommend biocides such as chlorine bleach as a routine practice for mold cleanup. Cleanup should focus on removal and moisture correction.
Frequently asked questions
Is every mold problem a professional job?
No. EPA says many small areas under about 10 square feet can often be handled by a homeowner following proper guidance.
Should I paint over mold after drying it?
No. EPA advises cleaning moldy surfaces and drying them before painting or caulking.