Mold remediation guides

For a small job, the EPA's own guidance is straightforward: fix the water problem, scrub mold off hard surfaces with water and detergent, dry completely, and discard absorbent materials like ceiling tile and carpet that have become moldy, since they usually cannot be cleaned. Wear an N-95 respirator, gloves, and eye protection, and do not touch mold with bare hands.

For a larger job, the guide you actually need is about hiring. Ask for the affected square footage, the containment plan, what gets removed versus cleaned, how drying will be verified, and whether build-back is included. Ask whether they follow ANSI/IICRC S520. Get it in writing. Then use a separate, independent party for clearance testing.

Verification is the step homeowners skip most often. "It looks fine" is not a completed job. Post-remediation verification should confirm the area is visibly clean, dry to a documented moisture level, and free of odor — and where sampling is used, the EPA notes surface sampling can be useful to determine whether an area has been adequately cleaned.

How to choose

Fix the leak first, always

Every guide in this category starts here because remediation over an active leak has a guaranteed failure date.

Measure before you call anyone

Knowing whether you are looking at 6 square feet or 60 changes the entire conversation and your leverage.

Wear real protection for DIY work

The EPA recommends an N-95 respirator, gloves, and goggles for home mold cleanup. A dust mask is not the same thing.

Get the containment plan in writing

Plastic barriers and negative air pressure are what keep a one-room job from becoming a whole-house job.

Pay for clearance, not pre-testing

Verification after the work is where testing money is well spent.