Mold Assessments

Clarity on Moisture, Mold Conditions, and Indoor Environmental Concerns

A mold assessment is a documentation-driven process that combines building history, occupant interview, and an on-site inspection to form an initial hypothesis about the origin, location, and extent of suspected microbial amplification. When appropriate, a sampling plan is developed and samples may be collected and sent to a qualified laboratory for analysis.

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Consider a mold assessment if you’re noticing any of the following:

  • Musty, moldy, or mildewy odors (often associated with microbial volatile organic compounds during active growth) Adobe Scan Dec 1, 2025

  • Visible suspect growth or staining

  • Recent or historic leaks, flooding, or water intrusion

  • High indoor humidity or recurring condensation concerns

  • Basement/crawlspace dampness or persistent moisture issues

When to Request a Mold Assessment


We focus on clear documentation and practical guidance. Where applicable, inspections and evaluations follow generally accepted practices and relevant guidance documents referenced in NY mold assessment training, including IICRC, EPA, and NYC DOH resources.

Our Approach


1) Building History + Occupant Interview

We start with what’s been happening: prior leaks, repairs, humidity patterns, ventilation concerns, and timing of odors or symptoms. This informs the inspection focus and any sampling strategy.

2) On-Site Inspection + Moisture Investigation

A mold assessment typically includes visual observations and the use of direct-read tools to evaluate moisture-related conditions in building materials and the indoor environment.

3) Thermal Imaging as a Diagnostic Tool

Thermal imaging may be used to identify temperature anomalies that can help guide moisture investigation and targeted verification.

4) Sampling Strategy (When Appropriate)

When conditions warrant it, a sampling plan may include:

  • Air sampling for airborne microbial indicators, collected using spore trap methodology and calibrated airflow practices consistent with common industry approaches

  • Outdoor (or control) comparisons when weather conditions allow; in certain conditions, an alternative control location may be used

  • Surface sampling (such as swabs) when visible suspect growth is present, submitted to a qualified laboratory for analysis

  • Chain of custody documentation to accompany collected samples

What’s Included


There is no government-established permissible exposure limit (PEL) for mold, so results are not interpreted as “safe” or “unsafe.” Instead, they are evaluated by comparing affected areas to an appropriate ambient/control baseline and correlating findings with observed conditions.

How Lab Results Are Interpreted


We use the S520 framework to describe conditions in a practical way:

  • Condition 1: Normal fungal ecology (typical background conditions) Adobe Scan Dec 1, 2025

  • Condition 2: Settled spores / moderate contamination (often dispersed from a Condition 3 area) Adobe Scan Dec 1, 2025

  • Condition 3: Actual growth / substantial contamination (visible or hidden; active or dormant)

Fungal Ecology Conditions (IICRC S520)


You’ll receive clear documentation that typically includes:

  • Executive-style summary of observed conditions

  • On-site observations and moisture-related findings

  • Sampling results (if collected) and a summary of findings

  • Practical recommendations (and remediation guidance when applicable)

Deliverables


After remediation or repairs, we can perform a follow-up evaluation to determine whether the work area is free from visible mold and whether work aligns with the plan. Where applicable, verification may include air monitoring to evaluate whether conditions have returned toward normal background levels (Condition 1).

Post-Remediation / Post-Repair Verification


Our language and framework align with commonly referenced guidance and training materials such as:

  • NYS Labor Law Article 32 (mold assessment/remediation licensing and work standards) Adobe Scan Dec 1, 2025

  • IICRC S520 Standard and Reference Guide for Professional Mold Remediation Adobe Scan Dec 1, 2025

  • US EPA mold remediation guidance Adobe Scan Dec 1, 2025

  • NYC DOH guidance on fungi assessment/remediation Adobe Scan Dec 1, 2025

  • AIHA / ACGIH analytical and bioaerosol guidance

Standards & References


Our observations relate to visible and accessible conditions at the time of the assessment and are not intended to identify every possible source of contamination. Results and observations are time-specific, and we do not provide medical recommendations.

Important Notes


Schedule a Mold Assessment

If you’re unsure whether you need a mold assessment, start with a quick description of what you’re seeing (odor, staining, prior leak, humidity concerns) and we’ll recommend the right scope.

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Frequently Asked Questions

  • We provide mold assessments. Sampling (“mold testing”) may be used as one tool within an overall assessment when it’s appropriate to the situation. A proper assessment focuses on the building conditions that contribute to mold (especially moisture) and documents findings clearly so the issue can be addressed correctly.

  • A mold assessment identifies and documents conditions consistent with mold growth and the likely moisture contributors. Mold remediation is the physical removal/cleaning and containment work performed by a remediation contractor. Our role is to assess, document, and guide—so remediation is properly scoped and targeted.

  • There is no government-established permissible exposure limit (PEL) for mold. Instead of labeling results as “safe/unsafe,” we evaluate conditions based on what’s observed, the building history, and (when applicable) comparisons to an appropriate control/baseline.

  • Thermal imaging may be used as a diagnostic tool to help guide moisture investigation and identify temperature anomalies that could indicate hidden moisture or building envelope issues. Itelying solely on infrared is not enough—thermal findings are interpreted in context and verified where appropriate.

  • It depends on the size of the home and the scope (single area of concern vs. whole-home review). After a quick intake, we’ll recommend the right scope and provide a time estimate before scheduling.

  • If possible, share any background: known leaks, prior remediation, recent storms, visible staining locations, and any areas with persistent odor or humidity. Avoid heavy cleaning of suspected areas right before the visit so conditions can be observed accurately.

  • Yes. After remediation or repairs, we can perform a follow-up evaluation to document current conditions and confirm work aligns with the intended plan. Where appropriate, verification may include additional measurements or air monitoring.

 

Service Areas

Casablanca Environmental & Building Diagnostics is based in Southampton, NY and provides mold assessments, inspections, and diagnostics throughout the East End of Long Island, including:

  • Southampton

  • Bridgehampton

  • Sagaponack

  • Water Mill

  • Sag Harbor

  • East Hampton

  • Wainscott

  • Amagansett

  • Montauk

  • Quogue / Westhampton (as scheduling allows)

If you don’t see your town listed, reach out—many projects fall within our normal coverage area.