Not Every Mold Company Follows The Standard

Eastern Mold Remediation

ANSI/IICRC S520 Standard

The Benchmark
What Is the ANSI/IICRC S520 Standard?

The ANSI/IICRC S520 is the nationally recognized, peer-reviewed standard for professional mold remediation — developed by the Institute of Inspection, Cleaning and Restoration Certification (IICRC) and approved by the American National Standards Institute (ANSI).

Science-Based Protocols

The standard establishes evidence-based procedures for identifying, containing, and removing mold growth. It covers contamination categories, moisture source identification, containment requirements, personal protective equipment (PPE), and post-remediation verification — the full scope of what a legitimate remediation job requires.

Clear Scope & Documentation Requirements

S520 requires that contractors develop a written remediation plan, document conditions before and after work, and conduct post-remediation testing to confirm clearance. Without these steps, there is no objective proof that the mold was successfully removed.

Worker & Occupant Safety

The standard defines how to protect both workers performing the remediation and occupants of the structure — including proper containment barriers to prevent cross-contamination of unaffected areas during the project.

Full documentation regarding ANSI/IICRC S520 can be found here.

The Risk
What Happens When a Company Ignores It?

Non-compliant remediation is not just sub-par work — it can actively make your situation worse. Here is what homeowners risk when a contractor cuts corners on the S520 Standard:

Mold Returns

Without addressing the moisture source and performing proper containment, mold colonies left behind will regrow — often faster the second time, because spores have already colonized the material.

Cross-Contamination

Improper containment allows airborne spores to spread into previously clean areas of your home during the remediation process itself, expanding the problem you hired them to solve.

Ongoing Health Exposure

Mold that appears removed but remains in wall cavities or HVAC systems continues to release spores. Respiratory issues, allergic reactions, and immune responses may persist or worsen.

No Proof of Clearance

Without post-remediation verification testing, you have no documentation that the work was completed successfully — which matters for insurance claims, property sales, and your own peace of mind.

Property Value Impact

A mold remediation job with no documentation and no clearance testing is difficult to disclose and difficult to defend. Buyers, inspectors, and lenders will scrutinize the remediation record closely.

No Accountability

Companies that don't follow the S520 Standard operate without a verifiable benchmark for their work. If something goes wrong, there is no professional standard against which to measure their failure.

Your Checklist
Before You Hire Anyone, Ask These Questions

Every homeowner in Maine deserves a remediation contractor who can answer these questions clearly and confidently. If they hesitate — or can't answer — that tells you everything.

Is your remediation process compliant with the ANSI/IICRC S520 Standard for Professional Mold Remediation?
Will you provide a written remediation plan before work begins, outlining scope, containment strategy, and methods?
Do you perform post-remediation clearance testing to verify the mold has been successfully removed?
How will you identify and address the moisture source that caused the mold growth in the first place?
What containment procedures will you use to prevent cross-contamination to unaffected areas of my home?
Will I receive documentation of the work performed, including before-and-after conditions and any test results?
Are your technicians trained and certified according to IICRC standards?

Our Commitment
Eastern Mold Remediation Works to the S520 Standard — Every Job

We serve homeowners and property owners all throughout Maine and New Hampshire. Every project we take on is carried out in full compliance with the ANSI/IICRC S520 Standard — not because we have to, but because it's the only way to do the job right.

When you compare vendors, compliance with S520 is the line between a problem solved and a problem postponed. We are prepared to answer every question on the checklist above, in writing, before we ever begin work on your property.

- ANSI/IICRC S520 Compliant -
- Post-Remediation Clearance Testing -
- Written Remediation Plans -
- Proper Containment Protocols -
- Serving Maine & New Hampshire -

Get Started
Ready to Talk to a Compliant Contractor?

Don't guess whether your mold problem has been solved. Contact Eastern Mold Remediation and get a clear, documented, S520-compliant remediation plan for your home.

Schedule Your Free Inspection

Call Us Today: (207) 667-9909