Same Day
Homeowner Report
Visual, plain-language, and built for decision-making.
Helps homeowners understand findings, make decisions, and move forward with corrective actions.
For HVAC Professionals
Find. Fix. Prevent.
Healthy Buildings Start Here.
Certification, field technology, and laboratory verification for HVAC professionals delivering defensible mold inspections — powered by training, the Mold Sentinel platform, lab analysis, and the two-report system.
The Technician Journey
TrainInspectVerifyReportRecommend
Backed by 30+ years of field experience and thousands of inspections.
33+ Years
Of field experience
Thousands
Of inspections performed
Board-Certified
Indoor Environmental Consultant
Published Author
Finding Hidden Mold
The IAQ Health Method
How an IAQ Health Inspection Works
A consistent, visual workflow from the first walkthrough to the final report — built for HVAC professionals in the field.
01Inspect
Standardized field walkthrough — HVAC, moisture, dust, airflow, and humidity.
02Document
Photos, measurements, and observations captured in Mold Sentinel as you work.
03Analyze
Lab samples and field data reviewed against IAQH inspection protocols.
04Report
Two reports generated from one inspection — homeowner-ready and lab-verified.
The Flagship Difference
Two Reports. One Inspection.
Mold Sentinel generates two reports from a single inspection — one for the homeowner, one for the lab record. Same data. Two audiences. Higher standard.
Lab VerifiedThird-party
HVAC Mold Report
Technical, sample-backed, and defensible.
- Laboratory analysis integration
- Sample identification
- Technical findings
- Third-party verification
- Defensible professional documentation
HVAC Mold Report + integrated laboratory analysis — the lab report is supporting evidence, not a third report.
Supports professional credibility, third-party verification, and defensible documentation.
Professional Certification
Become an IAQ Health Certified HVAC Mold Inspector™
Specialized training in HVAC mold inspections, moisture diagnostics, homeowner communication, and Mold Sentinel reporting.
Add a high-value inspection service that can generate testing, corrective work, and ongoing customer relationships.
Differentiate
Stand apart from competitors offering traditional HVAC services.
Build Trust
Display the Certified HVAC Mold Inspector™ badge across your brand.
Increase Revenue
Add a high-value inspection service with testing and corrective work.
Healthier Buildings
Help homeowners understand moisture and indoor environmental quality.
Mold Sentinel Platform
Mold Sentinel™: The Inspection Platform.
Mold Sentinel is the field platform HVAC professionals use to document inspections once and automate multiple deliverables.
- Document inspections in a standardized workflow.
- Capture photographs as you work.
- Record measurements and onsite conditions.
- Track lab samples and chain of custody.
- Organize findings in one place.
- Automate report deliverables from the same dataset.
Capture once. Generate multiple deliverables.
Mold Sentinel is the platform. The Two Reports section explains the outputs.
Specialized IAQH Tools
Professional Tools. Professional Results.
Standardized inspection tools produce consistent outcomes — the foundation of defensible findings.
About Steve
Meet Steve McLeod
- Founder of Indoor Environmental Systems
- Board-Certified Indoor Environmental Consultant
- Author of Finding Hidden Mold
- Three decades of field experience
Steve's mission is to help HVAC professionals become trusted leaders in building health through practical training, field-tested protocols, and technology.
Healthy Buildings Initiative
Beyond HVAC Mold Inspections
Combining building science, environmental monitoring, AI, and healthy building principles for measurably healthier indoor environments. Every inspection today becomes data that helps train tomorrow's building health intelligence.
Future Focus Areas
Indoor Air QualityMoisture ManagementVentilationFiltrationBuilding ScienceEnvironmental MonitoringArtificial IntelligenceHealthy Buildings Research
Aligned with the broader XPRIZE healthy buildings vision.
Request Information
Tell us what you're working on.
Certification, Mold Sentinel beta, partnerships, or Healthy Buildings — we'd love to hear from you.