Active & Verified State Credential
Verified: Sep 15, 2026
Watchpost

Mark J Nelson

Journeyman HVAC Mechanic

License Number#HJ18661
Issued: Nov 14, 2017
Expires: Mar 31, 2027(197d)
Employer / Parent Contractor

A Plus Derr Htg & Clg

View Business Profile

Licensed Journeyman HVAC Mechanic registered with the Kentucky Department of Housing, Buildings and Construction.

Verified active in the Watchpost registry. Continuous compliance tracking enabled for roster auditing.

Associated with A Plus Derr Htg & Clg across Kentucky trade regions.

License Lifecycle

IssuedNov 14, 2017
ExpiresMar 31, 2027
Grace EndsMay 30, 2027

Is this your license?

Claim your company profile to get automated SMS & Email alerts and share verified certificates.

Claim Your Company Profile →

Expiration & Renewal Monitoring

Get automated email alerts before Mark J Nelson's license (#HJ18661) reaches grace expiration or state renewal windows.

ClassificationJourneyman HVAC Mechanic
License NumberHJ18661
ExpiresMar 31, 2027(197 days)

Nearby HVAC Professionals

Other active licensed technicians and masters registered in Kentucky.

View All HVAC