Commercial Large-Loss Restoration in Maryland
30 certified commercial firms on file in Maryland. Credentials below are verified against IICRC's Certified Firm registry.
Cities with 3+ certified firms
Also served (1–2 firms)
Baltimore, Glen Burnie, Dunkirk, Rockville, Hunt Valley, Beltsville, Bel Air, Ellicott City, Frederick,, Cockeysville, Clinton, Halethorpe, Grasonville, Lanham, Hebron, Lexington Park, Silver Spring, Union Bridge, Westminster
What Maryland commercial firms are certified in
Certification counts across the 30 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 |
|---|---|---|
| ASD | Applied Structural Drying Technician | 30 |
| CDS | Commercial Drying Specialist | 30 |
| WRT | Water Damage Restoration Technician | 30 |
| AMRT | Applied Microbial Remediation Technician | 28 |
| OCT | Odor Control Technician | 28 |
| FSRT | Fire and Smoke Damage Restoration Technician | 27 |
30 of these firms hold three or more certifications; 0 appear in two independent registries and carry a cross-verified marker; 15 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 →
Commercial in Maryland: common questions
Is commercial work licensed in Maryland?
No US state licenses commercial work specifically. General contractor registration may apply to any rebuild that follows. The checkable credential is IICRC certification, which is what every listing on this page is verified against.
What certifications do Maryland commercial firms actually hold?
Across the 30 Maryland firms on file for this work, the most common credentials are ASD (Applied Structural Drying Technician) held by 30 firms, CDS (Commercial Drying Specialist) held by 30 firms, WRT (Water Damage Restoration Technician) held by 30 firms, AMRT (Applied Microbial Remediation Technician) held by 28 firms. 30 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. 0 of the 30 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026.
Which Maryland cities have the most commercial firms?
Elkridge leads with 3, followed by Millersville (3). We build a page wherever a city has three or more certified firms; smaller markets are listed below that without their own page.