Mold Remediation & Assessment in District of Columbia

1 certified mold remediation firm on file in District of Columbia. Credentials below are verified against the Department of Energy and Environment (DOEE) and IICRC's Certified Firm registry.

District of Columbia licenses mold work. Individuals only must be licensed for more than 10 affected square feet (20 DCMR §3201.2). DC does not bar one licensee from doing both. DOEE proposed exactly that rule as §3204.5(j) in 2018 and dropped it from the final rule adopted 19 April 2021, on the reasoning that requiring separate professionals could be more burdensome and costly for landlords and could delay remediation for tenants. What DC imposes instead: a licensee may not assess or remediate a property in which they or their company hold a financial interest (20 DCMR §3204.5(b)); may not pay or accept a referral fee between mold licensees (§3204.5(a)); and must disclose any known or potential conflict of interest to affected parties (§3204.4(c)). Full District of Columbia licensing rules →

Cities with 3+ certified firms

Also served (1–2 firms)

Washington

What District of Columbia mold remediation firms are certified in

Certification counts across the 1 District of Columbia firms on file for this work. These are the credentials on record with the issuing body — not what the firms advertise.

CredentialWhat it coversDistrict of Columbia firms
AMRTApplied Microbial Remediation Technician1
FSRTFire and Smoke Damage Restoration Technician1
OCTOdor Control Technician1
WRTWater Damage Restoration Technician1

1 of these firms hold three or more certifications; 0 appear in two independent registries and carry a cross-verified marker; 1 operate under a national franchise brand, which is separately owned and separately credentialled from the brand itself.

Every District of Columbia firm we hold a record for, A–Z by city →

Mold Remediation in District of Columbia: common questions

Do I need a licensed mold remediation contractor in District of Columbia?

District of Columbia requires a licence for more than 10 affected square feet (20 DCMR §3201.2) (20 DCMR §3201.2), issued by Department of Energy and Environment (DOEE). DC does not bar one licensee from doing both. DOEE proposed exactly that rule as §3204.5(j) in 2018 and dropped it from the final rule adopted 19 April 2021, on the reasoning that requiring separate professionals could be more burdensome and costly for landlords and could delay remediation for tenants. What DC imposes instead: a licensee may not assess or remediate a property in which they or their company hold a financial interest (20 DCMR §3204.5(b)); may not pay or accept a referral fee between mold licensees (§3204.5(a)); and must disclose any known or potential conflict of interest to affected parties (§3204.4(c)).

What certifications do District of Columbia mold remediation firms actually hold?

Across the 1 District of Columbia firms on file for this work, the most common credentials are AMRT (Applied Microbial Remediation Technician) held by 1 firm, FSRT (Fire and Smoke Damage Restoration Technician) held by 1 firm, OCT (Odor Control Technician) held by 1 firm, WRT (Water Damage Restoration Technician) held by 1 firm. 1 hold three or more certifications. Certification describes verified training rather than the services a firm chooses to advertise.

How were these District of Columbia firms verified?

Every certification was checked against IICRC's own Certified Firm registry, and every licence against the Department of Energy and Environment (DOEE) file, not against the firm's marketing. 0 of the 1 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026. Where a state publishes only current licensees, a firm absent from that file is reported as absent — never as unlicensed.