What a certified mold remediation technician does

A certified mold remediation technician has passed formal training and exams through the IICRC, the certifying body for the cleaning and restoration industry. The core mold credential is the AMRT, short for Applied Microbial Remediation Technician. AMRT training covers mold and sewage remediation techniques, with emphasis on protecting the health and safety of workers and occupants. Certified techs work to the ANSI/IICRC S520 standard, the industry's written playbook for professional mold remediation in homes and commercial buildings. States like Pennsylvania have no mold license at all, so voluntary certification is the main proof that the person opening your wall was trained to do it.

Not sure what you are looking at in your basement? Call (412) 226-9468 and describe it to a person. We answer 24/7, every day of the year.

There is no state licensing or registration program for mold remediators or mold inspectors in Pennsylvania. No state office checks a mold company's training before it knocks on your door. Nothing stops an untrained crew from buying a fogger, printing a flyer, and calling itself a remediation company the same week.

That gap lands on you, the homeowner. The trust signal has to come from somewhere, and in an unlicensed state it comes from voluntary credentials. A certification is earned. Someone sat through the coursework, passed the exams, and can show you the card. A slogan on a truck door is none of those things.

Around Tarentum and the Alle-Kiski Valley, this matters most right after water trouble. Most of the mold we see around Pittsburgh started as a burst pipe, a wet basement, or a leak nobody caught. Wet seasons make mold seasons, and mold seasons bring out the flyer guys. The letters are how you tell them apart from a trained crew.

The IICRC issues certifications one card at a time, and the order tells a story. Here are the three our owner holds:

• WRT, Water Damage Restoration Technician. The foundation card. WRT training covers water damage and its effects, drying techniques for structures, and the procedures for water losses, sewer backflows, and contamination such as mold.
• ASD, Applied Structural Drying. The drying card. ASD covers drying water-damaged structures and contents effectively, efficiently, and on time. You must earn WRT before you can take it.
• AMRT, Applied Microbial Remediation Technician. The mold card. It covers mold and sewage remediation techniques, and it stresses protecting the health and safety of workers and occupants. The IICRC's own Applied Microbial Remediation Technician page spells out that emphasis.

Notice the order. Water training comes before mold training, because mold is a water problem that got time to grow. A tech who can find and dry the moisture is a tech whose mold work stays fixed.

Our owner, Brian Marra, holds all three: WRT, ASD, and AMRT. Every technician on our crew carries IICRC certification as well. We say that plainly because in an unlicensed state the cards are the floor. Expect them from anyone who quotes you.

Certification tells you the tech was trained. The standard tells you what the job itself should look like. For mold, that standard is the ANSI/IICRC S520 Standard for Professional Mold Remediation. It describes the procedures to follow and the precautions to take when remediating mold. It covers homes, commercial buildings, and institutional buildings, plus the contents inside them. The current edition is the 2024 Fourth Edition.

Look at who wrote it. The S520 is the work of microbiologists and other scientists, public health professionals, industrial hygienists, remediation contractors, restoration companies, and training schools. That is a lot of eyes, and none of them were selling you a job.

The standard names the parts of professional mold remediation, including:

• Safety and health
• Documentation and risk management
• Building and material science
• Structural remediation
• HVAC remediation
• Contents remediation
• Post-remediation verification

That last item deserves a plain note. The standard treats verification as its own component. At Un-Flood-It, that check never stays in-house. Testing and clearance run through independent third-party hygienists, not our own crew. We remove the mold. We do not grade our own homework.

A standard is a strange thing to bring up on a phone call, but try it on every crew that quotes you. Call (412) 226-9468 any hour and ask. A live person answers, and that question is welcome here.

You cannot see training in a logo. You see it in habits.

Training shows up as habits, not as a certificate on the wall.

Containment is the clearest one. The trained habit is to wall off the work area with plastic sheeting and run negative air pressure, so air leaves the containment through a filter instead of drifting spores into clean rooms. HEPA vacuums and HEPA air scrubbers then pull spores from the air and the surfaces. The untrained shortcut is cutting out moldy drywall with the hallway door open. One of these protects the rest of your house. The other seeds it.

Safety is the second habit. AMRT training puts its emphasis on protecting the health and safety of workers and occupants. Watch how a crew protects its own people. If they are careless with their own lungs, ask what that means for yours.

Moisture thinking is the third. The EPA is blunt here: clean up the mold without fixing the water problem, and the mold will most likely come back. So a trained tech hunts the water first, and the moisture meters come out before any sprayer does. A wall is dry when the meter says so, and dry to the touch does not count. Some materials do not make it. Porous things like ceiling tiles and carpet may have to be thrown away, because mold fills their pores and cannot be fully removed. A trained crew says that up front.

The last habit is paper. We photograph every job and log moisture readings daily, and the S520 itself names documentation as part of the work. Guesswork is not a habit trained techs keep.

Use these on every company that quotes you, including us. A trained crew answers all five without flinching.

1. Who holds your certifications, and can I see them? Pennsylvania will not check for you, because there is no license to check. Ask for IICRC cards by name. Our answer: Brian holds WRT, ASD, and AMRT, and every technician on the crew is IICRC certified.
2. What standard will this job follow? The answer you want is S520, by name. A rep who has never heard of it just answered your real question.
3. How will you keep spores out of the rest of my house? Listen for containment words: plastic sheeting, negative air pressure, HEPA filtration. Vague answers here mean spores in your hallway later.
4. Who checks the work when it is done? The safe answer is an independent third party. A company that tests its own work is grading its own homework. Be careful with big testing pitches up front too. The CDC does not recommend mold testing, because if you can see or smell mold, it needs to come out no matter what type it is.
5. What will I have on paper when this is over? You want photos, moisture readings, and a file your insurance company can use. We document every job that way, and we bill your insurance company directly.

One more, if your problem started with a backup: ask whether the crew is trained for sewage. AMRT training covers sewage remediation alongside mold, and the EPA says damage from sewage or other contaminated water is a job for a professional with experience in it.

And a note of plain honesty. If the moldy patch is smaller than about 10 square feet, the EPA says most homeowners can handle a spot that size themselves. We will tell you the same thing on the phone.

When you are done asking, measure us with the same list. Here is how our certified techs run a real mold remediation job.