24H Mold Inspection
Ann Arbor24/7 EMERGENCY(734) 706-4508
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Mold Testing

Wall Cavity Mold Testing

Most mold problems start inside the wall, not on its surface. We confirm what's growing before any demolition.

Overview

Why wall cavity mold testing matters

Leaking pipes, condensation building on cold walls, and past water intrusion all leave moisture stuck inside wall cavities, where mold grows for months without anyone noticing. A standard visual inspection misses this completely. Wall cavity mold testing uses small access points, typically about the diameter of a drill bit, to pull air or surface samples from within the wall structure. The result confirms whether growth is present and identifies the species, before any demolition gets approved.

Wall cavity mold testing detects:

  • Active mold growing hidden inside drywall or plaster
  • Elevated spore counts from past water damage
  • Hidden growth around plumbing runs and exterior walls
  • Mold in walls that smell musty but show no visible staining
Why wall cavity mold testing matters
Mold inspector at work

Benefits

What you get from wall cavity testing

Know what's inside the wall before any decisions about tear-out

  • Minimally invasive: Small access holes only, no demolition to find out.
  • Targeted findings: Pinpoints contamination to the affected wall sections.
  • Scope guidance: Helps contractors remediate only what is contaminated.
  • Lab-confirmed: Species identification and spore counts from a certified lab.

About

How wall cavity mold testing works

Our certified mold inspectors create a small access point in a discreet location, then thread sampling equipment through to reach inside. Air sampling and swab sampling collect material from within, sealed and sent to a state-certified lab.

Our process includes:

  • Identifying suspect wall sections through moisture readings
  • Minimally invasive access at the chosen sample point
  • Air or swab sampling from within the wall structure
  • Lab-verified results identifying mold species in a mold inspection report
How wall cavity mold testing works

Mold inspection Ann Arbor FAQ

Call For An Inspection
Same-day and next-day appointments are usually available across our Ann Arbor service area, with 24/7 emergency response for active leaks, recent water damage, or urgent real estate timelines. Standard scheduling runs 1 to 3 business days depending on availability.
Our certified mold inspectors assess bathrooms, kitchens, laundry rooms, basements, attics, crawl spaces, HVAC components, and any area showing signs of past or current water issues. Thermal imaging and moisture meters identify hidden moisture behind walls and under floors.
Landlords and property managers in Ann Arbor operate in a market where rental properties are often older, heavily occupied, and subject to the same Michigan climate stresses as owner-occupied homes — but with less consistent maintenance oversight. Michigan landlord-tenant law places responsibility on property owners to provide habitable conditions, and mold is increasingly the subject of tenant complaints and legal disputes in the rental market. Proactive mold inspections between tenancies, after any reported leak or water event, and on a periodic maintenance schedule are the most effective way to identify issues before they escalate. Post-remediation verification is equally important to document that any identified mold was properly addressed before re-occupancy.
Pricing varies based on the size of the property, the scope of testing required, and whether any lab work is included. Most residential mold inspections in Ann Arbor fall within the standard industry range of $300 to $600, with a clear quote provided before any work begins.

Contact

Book your Ann Arbor mold inspection today

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Location

24H Mold Inspection of Ann Arbor

Service area neighborhoods

  • Kerrytown
  • Burns Park
  • Old West Side
  • Water Hill
  • Germantown
  • Lower Burns Park
  • Northeast Ann Arbor
  • Pittsfield Township (adjacent)
Call For Service(734) 706-4508