Safety first: if there is fire, gas smell, or electrical risk near water, leave and call 911 or your utility first.
Where it hides
- Behind baseboards and lower drywall after a floor leak.
- Under sinks and around dishwashers.
- In ceilings below coolers or AC lines.
- Under carpet pad.
- In closets on exterior walls after monsoon intrusion.
Small vs. large
The EPA suggests homeowners can often handle small areas themselves, roughly under about 10 square feet, if the cause is fixed. Larger areas, HVAC contamination, or mold after sewage are usually jobs for a professional.
Fix the water first
Mold cleanup does not last unless the moisture source is fixed. Repair the leak, dry materials, and remove what cannot be dried.
Health
People with allergies, asthma, or weakened immune systems should be careful around mold. Talk to a doctor about health concerns.
Frequently asked questions
Can I paint over mold?
No. Paint does not fix mold and it can come back. Clean or remove the affected material and fix the moisture.
Do I need mold testing?
Not always. If you can see or smell mold, the priority is fixing moisture and cleanup. A pro can advise on testing.
More guides
- Water damage: what to do in the first 24 hours
- Water heater leaking? Limit the damage
- Swamp cooler leaks and mold
- Monsoon prep checklist for Tucson homes
- Water damage insurance claim tips
- Slab leak signs in Tucson homes
- How to vet a restoration contractor in Arizona
- Roof leak or plumbing leak?
- Preventing burst pipes during a Tucson freeze
- Smoke odor and soot after a small fire
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