How to Hire a Mold Inspector in Indiana
March 17, 2026
Since Indiana doesn’t license mold professionals, hiring the right one takes more diligence than hiring a licensed home inspector or radon tester. This guide walks you through what to look for, what to ask, and what to avoid.
Step 1: Understand What You Need
Mold services fall into three categories:
- Mold inspection — visual assessment, moisture mapping, identifying the source of the problem
- Mold testing — air sampling, surface sampling, and laboratory analysis to identify mold species and concentration
- Mold remediation — physical removal, containment, cleaning, and treatment of mold-affected areas
You may not need all three. A qualified inspector can often determine the problem and recommend a solution from visual inspection alone. Testing is most useful when:
- Mold is suspected but not visible
- You need to document species for health or legal purposes
- Post-remediation clearance is needed
Step 2: Check Certifications
Since there’s no state license to verify, industry certifications are your primary quality indicator:
| Certification | Issuing Body | Focus |
|---|---|---|
| CMI | ACAC | Microbial investigation (inspection/testing) |
| CRMI | ACAC | Residential mold inspection |
| AMRT | IICRC | Applied microbial remediation |
| WRT | IICRC | Water damage restoration |
| CMC | NORMI | Certified mold consultant |
| CMA | NORMI | Certified mold assessor |
You can verify certifications:
- IICRC: iicrc.org/iicrcgloballocator
- ACAC: acac.org/find
- NORMI: normipro.com/search.php
Step 3: Ask the Right Questions
Before hiring, ask:
- What certifications do you hold? (Verify independently using the links above)
- Do you carry liability insurance? (General liability at minimum; pollution liability is better)
- Do you also perform remediation? (If yes, consider using a different company for the inspection)
- What does your inspection include? (Should include visual assessment, moisture mapping, and a written report)
- What lab do you use for testing? (Should be an accredited laboratory, not an in-house test)
- Can you provide references from recent Indiana projects?
Step 4: Watch for Red Flags
- Free inspections from companies that also do remediation — the inspection is a sales tool
- Scare tactics about “toxic black mold” — all mold should be addressed, but fear-based selling is unprofessional
- No written report — a professional inspection should always produce a written report with findings, photos, and recommendations
- Pressure to sign immediately — reputable companies give you time to get multiple quotes
- No certifications — while not legally required in Indiana, a complete lack of industry training is a warning sign
Step 5: Get Multiple Quotes
For remediation work, get at least three written quotes. Each quote should include:
- Scope of work (what areas will be treated)
- Containment plan (how they’ll prevent cross-contamination)
- Disposal method for contaminated materials
- Post-remediation clearance testing plan
- Timeline and total cost
- Insurance documentation
What to Expect During an Inspection
A thorough mold inspection typically includes:
- Interview — the inspector asks about water history, HVAC maintenance, symptoms, and concerns
- Visual inspection — systematic walkthrough of all accessible areas, including attic, basement, crawl space, and around plumbing fixtures
- Moisture mapping — using moisture meters and thermal imaging cameras to find hidden moisture
- Air/surface sampling (if needed) — collecting samples for laboratory analysis
- Written report — findings, photos, moisture readings, lab results, and recommendations
The on-site portion typically takes 1 to 3 hours. Lab results take 2 to 5 business days.
Cost Summary
| Service | Typical Cost (Indiana) |
|---|---|
| Mold inspection (visual + moisture mapping) | $300 – $500 |
| Air sampling (per sample) | $100 – $200 |
| Surface sampling (per sample) | $50 – $150 |
| Full inspection + 3 air samples | $500 – $900 |
| Post-remediation clearance test | $300 – $500 |
Prices vary by property size, location, and number of samples needed.
Frequently Asked Questions
What certification should a mold inspector have?
The gold standard is ACAC CMI (Council-certified Microbial Investigator) for inspection work, or IICRC AMRT for remediation. At minimum, the inspector should hold an IICRC WRT (Water Damage Restoration Technician) certification.
How much should a mold inspection cost in Indiana?
Expect to pay $300 to $500 for a standard home inspection. Air sampling adds $100 to $300 per sample. Be wary of companies offering free inspections — they typically profit from the remediation work they recommend.
Should my inspector also do the remediation?
No. Industry best practice is to use separate companies for inspection and remediation. This avoids a conflict of interest where the inspector has a financial incentive to find problems.