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Columbia, MD· pop. 99,615

Mold Inspectors in Columbia, Maryland

Columbia is a city in Maryland, home to roughly 99,615 residents. Its humid subtropical climate brings high humidity (60–80% annual average), which makes local homes prone to Cladosporium and Aspergillus growth after leaks, flooding, or poor ventilation. Compare mold inspection, testing, and air-quality professionals serving Columbia below, and confirm each holds the required Maryland Department of the Environment (MDE) credential before hiring.

Verified Select
Top choice for Columbia

Our top pick for Columbia is Mid-State Pest Control. Selection is based on credential authority, listing completeness, and any active state license we've cross-referenced from public registries.

Mid-State Pest Control
Flintstone, MD
NRPP: Measurement Professional

Verified Select is selected from public credential and state-license data, not paid placement. See How We Verify.

Mold inspectors serving Columbia

InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
Cos Environmental
Boonsboro, MD
NRPP: Measurement ProfessionalSource: NRPP
Dancer & Co.
Ellicott City, MD
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
NRPP: Measurement ProfessionalSource: NRPP
CIEEPA Lead-Safe Certified Firm (RRP)NRPP: NRPP Certified Radon ProfessionalSourced from ACAC
CMREPA Lead-Safe Certified Firm (RRP)Sourced from ACAC
NRPP: NRPP Certified Radon ProfessionalSource: NRPP
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
NRPP: Measurement ProfessionalSource: NRPP
NextDay Inspect®
Fort Washington, MD
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
InterNACHI Certified Mold Inspector (CMI)EPA Lead-Safe Certified Firm (RRP)Sourced from InterNACHI
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
NRPP: NRPP Certified Radon ProfessionalSource: NRPP
Reddi, LLC
Catonsville, MD
NRPP: Measurement ProfessionalSource: NRPP
Roberts Radon, LLC
Sudlersville, MD
NRPP: Measurement ProfessionalSource: NRPP
Target Radon
Aberdeen, MD
NRPP: Measurement ProfessionalSource: NRPP
TSI Environmental
Upper Marlboro, MD
CIECSourced from ACAC
NRPP: Measurement ProfessionalSource: NRPP
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
Maryland Mold Information
Climate Zone
Humid Subtropical
Köppen primary classification
Humidity Level
High year-round (60–80% annual avg)
NOAA NCEI 1991–2020 normals
Common Mold Types
Cladosporium, Aspergillus, Penicillium
Per EPA mold guidance
Weather considerations

Bay-driven humidity, mature housing stock around DC and Baltimore, and state-level mold licensing all elevate scrutiny on remediation work.

State licensing

Maryland licenses mold professionals through the Maryland Department of the Environment (MDE). View official program

Local factors
  • Columbia's mix of older and newer homes means moisture issues range from crawl-space humidity to modern-build envelope condensation.
  • High regional humidity makes mold prevention a year-round concern, not just an after-a-leak fix.

Sources: NOAA climate normals; EPA mold guidance; state licensing authorities. See our data sources.

Common mold-inspection services

Other mold inspectors in Maryland

InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
Applied Microbial Remediation TechnicianApplied Structural Drying TechnicianContents Processing TechnicianFire and Smoke Damage Restoration Technician+2Sourced from IICRC
NRPP: Measurement ProfessionalSource: NRPP
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
NRPP: Measurement ProfessionalSource: NRPP
N8 Inspections LLC
Aberdeen, MD
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI
InterNACHI Certified Mold Inspector (CMI)Sourced from InterNACHI

Nearby cities

Frequently asked questions

MoldInspectorsNearMe.com is a directory and lead-referral platform. We do not perform mold inspections. We do not provide medical advice. Listings shown above come from owner submissions, admin entries, and properly licensed data sources. See our disclaimer.