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

William B Mack

Master HVAC Contractor

License Number#HM05231
Issued: Feb 20, 2012
Expires: Dec 31, 2026(103d)
Employer / Parent Contractor

Mack Serv Co Htg & Clg

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Licensed Master HVAC Contractor 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

IssuedFeb 20, 2012
ExpiresDec 31, 2026
Grace EndsMar 1, 2027

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ClassificationMaster HVAC Contractor
License NumberHM05231
ExpiresDec 31, 2026(103 days)

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