Frequently Asked Questions
Straight answers about how we work, what testing can and cannot tell you, and what to expect. For deeper dives, see our resource guides.
Testing & Process
How long does an inspection take?
A typical inspection takes around 1-2 hours for every thousand square feet. A 3,000 sq ft home could take 3-6 hours depending on what we find. We're investigators at heart—the more issues we uncover, the longer we take to fully understand them. If your home is clean, we move through faster.
What kinds of samples do you use?
Think of sampling like a detective's toolkit—there's no single 'best' tool, just the right tool for each situation. We offer air, surface, bulk, dust, VOC, and moisture mapping options. Standard investigations include spore trap air samples and/or direct samples. Advanced testing—ERMI, mycotoxin analysis—is available when the question calls for it.
How many air samples does my home need?
Enough to answer the question—no more. Every project includes an outdoor baseline plus indoor samples in the areas of concern; larger or multi-zone homes justify additional locations. Oversampling adds cost without adding clarity, which is why the sampling plan comes after the visual assessment, not before.
What's the difference between mold testing and air quality testing?
Mold-focused testing asks whether fungal growth is impacting your environment—air, surfaces, wall cavities, HVAC. A broader environmental investigation also evaluates non-mold factors: particulates, allergens, VOCs, carbon dioxide and ventilation, combustion gases, and humidity dynamics. When occupants are experiencing symptoms without an obvious mold source, the broader scope is often the right call.
Why do you insist on inspecting before testing?
Because sampling without a hypothesis is guesswork. The building's moisture history, construction, and airflow patterns determine where samples will actually mean something. Testing chosen at random can easily miss a real problem—or 'find' a false one. Assessment first, measurement second is what makes results defensible.
Do you do remediation?
No—deliberately. We are an independent diagnostics practice. The 'test and fix' business model creates an obvious conflict of interest: a company that profits from remediation has an incentive to find problems. Our only product is accurate findings and a sound protocol, which is exactly what makes our documentation credible to insurers, attorneys, and remediators.
Health Concerns
We feel sick at home but tests elsewhere were 'normal.' Can you help?
This is the situation our practice was built for. Non-specific symptoms with normal-looking spot tests usually mean the question hasn't been investigated properly—growth can be hidden in cavities, intermittent, or non-fungal factors like VOCs and ventilation may be involved. A systematic whole-environment investigation, rather than another isolated test, is the appropriate next step.
What symptoms are associated with moldy or damp buildings?
CDC and EPA describe the common effects as allergic and irritant: congestion, eye and throat irritation, coughing, and worsening asthma. Occupants also commonly report fatigue, headaches, and difficulty concentrating. These are associations, not diagnoses—many conditions cause similar symptoms, which is why environmental documentation and medical evaluation work best together. See our full guide on mold and health for details.
Who is most at risk from mold exposure?
CDC identifies higher-risk groups: infants and young children, elderly individuals, people with allergies or asthma, those with chronic lung disease, and anyone with a weakened or suppressed immune system. Households that include these occupants warrant a lower threshold for investigating moisture and mold concerns.
Is there a 'safe level' of mold in air?
No federal health-based standard exists for mold in indoor air—CDC and NIOSH note that individual sensitivity varies too widely for a single threshold to be meaningful. Results are interpreted by comparison: indoor versus outdoor profiles, room-to-room patterns, and building conditions. A number without context is not an answer.
Do you diagnose mold illness?
No—that is a medical determination that belongs with your physician. What we provide is the environmental half of the picture: objective, defensible documentation of whether your building has the moisture conditions and fungal reservoirs that could plausibly relate to what you're experiencing. Many clients share our reports directly with their doctors.
Costs & Scheduling
How much does an investigation cost?
Pricing depends on your location and home size. Contact us or fill out our investigation request form for specific pricing tailored to your situation. What we can promise up front: the report and remediation protocol are included—we don't believe in charging extra for the recommendations.
What's included in the price?
Thermal imaging, full moisture mapping, humidity and dew point readings, inspection scoping, basic pressure testing, sampling, and a comprehensive written report with a detailed remediation protocol—all in one price. Advanced diagnostics like ERMI or mycotoxin analysis are added only when your situation calls for them, and we'll tell you when it doesn't.
Where do you work?
On-site investigations are available in California, Michigan, and Florida. Remote protocol services—where we review your existing reports, lab data, and documentation to produce a remediation protocol—are available nationwide.
Remote Services & Reports
How does the remote protocol service work?
You send us your existing documentation—inspection reports, lab results, photos, moisture readings—and we review it and produce a written remediation protocol based on the records provided. It's designed for people who already have data but no clear plan. The limitation is honest and stated: a records-based protocol is only as good as the records, and additional information may alter recommendations.
Will I be able to understand the report?
Yes. Reports are written to be read by the homeowner first—findings, photos, and plain-language explanations—while still carrying the technical detail that remediators, insurance adjusters, and attorneys need. You shouldn't need industry knowledge to understand what's happening in your own home.
Can your findings be used in disputes or legal matters?
Yes. Samples carry chain-of-custody documentation, methods align with recognized standards including ANSI/IICRC S520, and findings are rendered independently. When cases escalate, expert witness services—testimony, depositions, and technical reports—are a core part of our practice.
What happens after the investigation?
You receive the written report and protocol, and we walk you through it. If remediation is needed, the protocol gives any qualified contractor an exact scope of work—and we can provide post-remediation verification afterward to confirm the work actually succeeded before walls close.