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Real Mold Inspection Case Studies in Dallas-Fort Worth

Anonymized case studies drawn from actual mold assessments and inspections. Conditions vary from property to property, and findings from one case should not be assumed to apply elsewhere. Mold Testing Dallas is an independent mold assessment company.

3 published casesHVAC & Air Distribution Bathrooms
Surface growth on an uninsulated AC condensate drain line in a Dallas attic

Mold on an AC Condensate Drain Line in a Dallas Attic

A Dallas homeowner requested an independent assessment after an HVAC technician noticed suspected growth on attic condensate piping. A surface swab supported fungal growth on the pipe exterior; no visible mold growth was observed inside accessible portions of the air handler or connected ductwork.

Dallas, Texas · Single-family residential · HVAC & Air Distribution

  • ac condensate line
  • hvac
  • attic
  • cladosporium
  • surface sampling
  • condensation
  • air handler
  • pvc drain line
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White and gray surface colonization on the accessible interior HVAC supply-plenum liner

Mold Found Inside an HVAC Supply Plenum in a Dallas Home

A Dallas homeowner requested an independent assessment after an HVAC professional reported suspected growth inside an attic supply plenum. Accessible fiberglass duct-board liner showed extensive surface colonization. Surface swabs supported fungal growth inside the plenum and on a downstream living-room supply grill. No air samples were collected.

Dallas, Texas · Single-family residential · HVAC & Air Distribution

  • hvac
  • supply plenum
  • duct board
  • air vent
  • supply grill
  • cladosporium
  • aspergillus penicillium like spores
  • surface sampling
  • attic
  • air handler
  • mold in hvac
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Dark discoloration along the sampled rear interior seam of a bathroom vanity

Mold Found Inside a Bathroom Vanity After a Persistent Musty Odor

A homeowner reported persistent musty odors in three adjoining or vertically stacked bathrooms. In Bathroom #1, an accessible rear vanity seam showed discoloration and its surface swab supported fungal growth. Its air sample contained more than 8,000 Aspergillus/Penicillium-like spores/m³, unlike the other two bathrooms tested. The specific moisture source was not confirmed.

Dallas, Texas · Single-family residential · Bathrooms

  • bathroom mold
  • vanity
  • hidden mold
  • musty odor
  • aspergillus penicillium like spores
  • air sampling
  • surface sampling
  • moisture
  • bathroom cabinet
  • under sink
  • water intrusion
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