Active & Verified State Credential
Verified: Sep 19, 2026
Watchpost

William B Mack

Journeyman HVAC Mechanic

License Number#HJ12741
Issued: Jul 31, 2003
Expires: Dec 31, 2026(103d)
Employer / Parent Contractor

Mack Serv Co Htg & Clg

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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 Mack Serv Co Htg & Clg across Kentucky trade regions.

License Lifecycle

IssuedJul 31, 2003
ExpiresDec 31, 2026
Grace EndsMar 1, 2027

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ClassificationJourneyman HVAC Mechanic
License NumberHJ12741
ExpiresDec 31, 2026(103 days)

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