Hidden Mold Behind the Walls: Lesson From a Mold Inspector with Nik Stophel

Summary

Mold inspector Nik Stophel describes how water damage in his family’s home led to hidden mold and unsuccessful remediation attempts. The experience prompted him and his wife, Olivia, to learn about indoor air quality and eventually start Pure Home.

The conversation focuses on responding to water damage, preventing contamination during repairs, choosing qualified professionals, and making informed decisions about a home.

Key Strategies and Advice

Act quickly when water damage occurs

• Stop the leak, or arrange to have it stopped, as soon as possible.
• Remember that water can travel well beyond the visible wet area, including under floors, inside walls, and between stories.
• Have the affected area assessed with moisture measurements. Don’t rely only on visible signs or a thermal camera.

Document damage immediately

• Take photos and videos of the leak and affected materials before they dry or are removed.
• Keep records to help explain what happened when speaking with an insurer.
• Insurance coverage varies, so understand your policy and seek reliable guidance before making assumptions.

Pause before demolition

If you don’t know how long a leak has been present or suspect mold, avoid immediately opening walls or spraying products. First, identify the moisture source and make a remediation plan with a qualified professional. Uncontained demolition can spread dust and mold particles through the home.

Insist on appropriate containment and worker protection

For renovation or remediation work, ask how the company will isolate the work area, control airflow, and protect workers and occupants.

Nik recommends looking for practices such as containment, negative pressure, appropriate personal protective equipment (PPE), and HEPA equipment—not relying on a portable air purifier alone. Ask about applicable industry standards, including ANSI/IICRC S500 for water-damage restoration and S520 for mold remediation.

Vet inspectors and contractors carefully

Certifications, years of experience, reviews, and impressive equipment don’t guarantee quality. Ask what the inspection will cover, what tools will be used, and how the findings will be interpreted.

Allow enough time for a thorough inspection. Nik says even a 1,000-square-foot home may take him several hours to inspect, while larger homes may take a full day or longer. A thermal imager or air-quality instrument is only one part of the assessment; a full evaluation considers the home’s history, symptoms, moisture signs, and multiple inspection methods.

Get the whole picture before committing money or deciding to move

Look beyond one damp spot. Assess the home from roof to foundation and consider areas such as attics, bathrooms, laundry rooms, and basements. Prioritize findings by severity and address the source of moisture, not just the visible damage.

Whether to stay or leave is a personal decision that can involve financial, health, and emotional considerations. A thorough inspection can help make the choice more informed.

Protect your wellbeing and give yourself room to respond

The hosts encourage listeners to pause, breathe, and make a plan rather than panic. Nik acknowledges the physical, financial, and emotional toll of the experience while emphasizing that families can recover and that people should be compassionate toward themselves about past mistakes.

Presenters and Sources

• Presenters: Kendra Seymour (host) and Nik Stophel (guest; also referred to as Nick in the subtitles)
• Referenced: Olivia Stophel, Change the Air Foundation, Pure Home, ANSI/IICRC S500 and S520 standards, Andrew Melrose, and Gwen Beaty
• Sponsors thanked in the episode: MV Restoration of Colorado and Pure Air Pro