Mold Remediation & Assessment in Maryland
128 certified mold remediation firms on file in Maryland. 2 of them hold a mold licence issued by another state — worth knowing, but there is no Maryland licence to check. Credentials below are verified against IICRC's Certified Firm registry.
Cities with 3+ certified firms
Also served (1–2 firms)
Elkton, Dunkirk, Edgewood, Cockeysville, Clinton, Forest Hill, Stevensville, Salisbury, Temple Hills, Millersville, North Bethesda, Parkville, Westminster, Silver Spring, Hunt Valley, Bel Air, Catonsville, Annapolis, Bowie, Cumberland, Ashton, Hughesville, Hebron, Havre De Grace, Grasonville, Gambrills, Frederick,, Ellicott City, Edgewater, Clarksville, Lexington Park, Kingsville, Laurel, Kensington, Huntingtown, Hyattsville, Jessup, Odenton, Oakland, Nottingham
What Maryland mold remediation firms are certified in
Certification counts across the 128 Maryland firms on file for this work. These are the credentials on record with the issuing body — not what the firms advertise.
| Credential | What it covers | Maryland firms |
|---|---|---|
| AMRT | Applied Microbial Remediation Technician | 126 |
| WRT | Water Damage Restoration Technician | 126 |
| ASD | Applied Structural Drying Technician | 102 |
| FSRT | Fire and Smoke Damage Restoration Technician | 102 |
| OCT | Odor Control Technician | 87 |
| CCT | Carpet Cleaning Technician | 63 |
116 of these firms hold three or more certifications; 2 appear in two independent registries and carry a cross-verified marker; 43 operate under a national franchise brand, which is separately owned and separately credentialled from the brand itself.
Every Maryland firm we hold a record for, A–Z by city →
Mold Remediation in Maryland: common questions
Is mold remediation licensed in Maryland?
Maryland does not run a mold-specific licensing program. Only five US jurisdictions do (Texas, Florida, New York, Louisiana and the District of Columbia; Illinois has enacted a program that is not yet in force). In Maryland, the credentials to check are IICRC certification, general contractor licensing where applicable, and insurance.
What certifications do Maryland mold remediation firms actually hold?
Across the 128 Maryland firms on file for this work, the most common credentials are AMRT (Applied Microbial Remediation Technician) held by 126 firms, WRT (Water Damage Restoration Technician) held by 126 firms, ASD (Applied Structural Drying Technician) held by 102 firms, FSRT (Fire and Smoke Damage Restoration Technician) held by 102 firms. 116 hold three or more certifications. Certification describes verified training rather than the services a firm chooses to advertise.
How were these Maryland firms verified?
Every certification was checked against IICRC's own Certified Firm registry, not against the firm's marketing. 2 of the 128 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026.
Which Maryland cities have the most mold remediation firms?
Baltimore leads with 15, followed by Gaithersburg (7), Rockville (6), Beltsville (5). We build a page wherever a city has three or more certified firms; smaller markets are listed below that without their own page.