Odor Removal in New Hampshire
9 certified odor removal firms on file in New Hampshire. Credentials below are verified against IICRC's Certified Firm registry.
Cities with 3+ certified firms
Also served (1–2 firms)
Bedford, Bow, Dover, Enfield, Merrimack, Nashua, Portsmouth, Weare, Westmoreland
What New Hampshire odor removal firms are certified in
Certification counts across the 9 New Hampshire 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 | New Hampshire firms |
|---|---|---|
| OCT | Odor Control Technician | 9 |
| WRT | Water Damage Restoration Technician | 9 |
| AMRT | Applied Microbial Remediation Technician | 7 |
| FSRT | Fire and Smoke Damage Restoration Technician | 7 |
| ASD | Applied Structural Drying Technician | 6 |
| TCST | Trauma and Crime Scene Technician | 5 |
9 of these firms hold three or more certifications; 1 appear in two independent registries and carry a cross-verified marker; 5 operate under a national franchise brand, which is separately owned and separately credentialled from the brand itself.
Every New Hampshire firm we hold a record for, A–Z by city →
Odor Removal in New Hampshire: common questions
Is odor removal work licensed in New Hampshire?
No US state licenses odor removal 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 New Hampshire odor removal firms actually hold?
Across the 9 New Hampshire firms on file for this work, the most common credentials are OCT (Odor Control Technician) held by 9 firms, WRT (Water Damage Restoration Technician) held by 9 firms, AMRT (Applied Microbial Remediation Technician) held by 7 firms, FSRT (Fire and Smoke Damage Restoration Technician) held by 7 firms. 9 hold three or more certifications. Certification describes verified training rather than the services a firm chooses to advertise.
How were these New Hampshire firms verified?
Every certification was checked against IICRC's own Certified Firm registry, not against the firm's marketing. 1 of the 9 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026.