Episode 123 - Dr. Jill Carnahan - Buying A Home? How To Spot Hidden Mold Before You Move In

MEET THE GUEST Dr. Jill Carnahan, Your Functional Medicine Expert®, is dually board-certified and founder of Flatiron Functional Medicine. A survivor of breast cancer, Crohn's, and toxic mold illness, she uncovers root causes through advanced testing and personalized care. Her bestselling memoir Unexpected and documentary Doctor/Patient share her journey. A sought-after speaker, she inspires audiences with science-backed insight, authenticity, and humor. WHAT WE TALK ABOUT Bring dust sample kits (ERMI-style, e.g. Immunolytics) on every showing to test surfaces before making an offer. Learn visual red flags: warped floorboards, stained ceilings/corners, bathroom tile growth, and stucco type/installation quality. Keep a trusted mold inspector on call to do informal walkthroughs before an offer is made. Ask sellers pointed questions (dishwasher leaks, shower leaks, etc.); most were surprisingly honest. She toured 40+ homes; about 80% had significant mold, even in Colorado's dry climate and in expensive, newer homes. Her real question wasn't "is there mold" but "where is it, how fixable, and what will it cost." One stucco issue quoted at $250,000+ was a dealbreaker; minor sink/window-well leaks were manageable and budgeted in. She went under contract five times, backing out four times after formal inspections revealed major issues. Deal-breakers: foundational problems, roof/siding/stucco-wide water intrusion, and oddities like an indoor jacuzzi, versus minor, containable issues like a single leaky sink. Sellers sometimes pushed back hard on repair-cost requests, so having a knowledgeable realtor was essential. New homes aren't automatically safer: poor drywall/tile installation and off-gassing (formaldehyde, granite) are common, while very old homes carry decades of leak history. Her "sweet spot": homes roughly 8 to 15 years old. Crawl spaces and long-term single-owners with strong maintenance records are strong positive signals. Filing a legitimate mold claim on a past condo made it harder to get new homeowners insurance. Testing approach: dust (ERMI-style) plus air samples plus bulk/swab samples on visible growth; toilets and wax seals are common failure points worth replacing preemptively. In Colorado, buyers can exit contracts via "inspection objection" without disclosing mold specifically; she chose whether to share findings with sellers as a courtesy. Basements/window wells need proper stone (not mulch) and drainage to prevent water intrusion. Post-purchase upgrades: whole-home water filtration, Moen Flo smart shutoff with leak sensors at every fixture, and multiple air filtration units. Her advice: budget and stage fixes over time (water/roof/siding first) rather than trying to remediate everything at once. EPISODE RESOURCES  AirDoctor Hospital-grade purifier that traps mold spores, allergens & VOCs for cleaner, healthier indoor air. https://shop.thetrailtohealth.com/AirDoctor Immunolytics Order at-home testing for mold in your home. https://shop.thetrailtohealth.com/Immunolytics Aquasana Whole-home water filtration that removes contaminants for cleaner, safer water straight from every tap. https://shop.thetrailtohealth.com/aquasana Branch Basics Non-toxic cleaning products, perfect for a mold-safe move-in deep clean. Use code TRAILTOHEALTH for 15% off. https://shop.thetrailtohealth.com/BranchBasics CONNECT WITH THE GUEST Website: https://www.jillcarnahan.com/ Instagram: https://www.instagram.com/drjillcarnahan Facebook: https://www.facebook.com/FlatironFunctionalMedicine YouTube: https://www.youtube.com/@DrJillCarnahan KEYWORDS mold-free home, house hunting mold, ERMI dust test, mold inspection, water damage, home buying tips, air purifier, water filtration