How to Choose a Mold Remediation Company

Choosing a mold remediation company is mostly about filtering out the two failure modes: the outfit that does not fix the water source, and the outfit that also “inspects” and then finds a fortune of work only they can do. Start by lining up a few vetted local companies so you can compare how they scope the job, not just what they charge.

Separate the inspector from the remediator

The cleanest arrangement is an independent assessment (or your own testing) that defines the problem, and a separate remediation crew that fixes it. When the same company both diagnoses and profits from the cure, the incentive is obvious. It is not always avoidable, but it is worth being alert to.

What to ask every company

• How will you find and fix the moisture source? — if they cannot answer, the mold comes back.
• What containment will you use? — sealing, negative air, and HEPA scrubbing keep spores from spreading to clean rooms during the work.
• Do you follow a recognized standard? — ask about IICRC S520 (the industry remediation standard) and appropriate certifications and insurance.
• Will there be post-remediation verification? — an independent re-test confirms the work, rather than taking “all done” on faith.

Get it in writing, and compare scope

Collect a few written estimates and read them for scope, not just the bottom line — containment, the water fix, disposal, and verification should all appear. A home-warranty or service plan such as American Home Shield can sometimes help with the underlying cause (a covered plumbing or appliance failure), so it is worth checking what your coverage includes before you pay out of pocket.

Verify the result

Bookend the job with independent testing — a baseline before and a check after. A company confident in its work will welcome verification; one that resists it is telling you something. Pick for how they handle the water and the proof, and the price tends to sort itself out.

Sources and further reading

This article is educational guidance, not medical advice. The primary sources below inform this section of the site — each is republished here in full, and linked to the original publisher so you can read it at the source.

• EPA — Mold Cleanup in Your Home — original at epa.gov
• EPA — A Brief Guide to Mold, Moisture and Your Home — original at epa.gov
• CDC/NIOSH — Mold, Testing, and Remediation — original at cdc.gov