ALLENTOWN, PA - January 12, 2026 - PRESSADVANTAGE - PJ MAC HVAC Air Duct Cleaning announced the launch of a new ...

ARLINGTON, Va. — ACCA has launched its newest online certificate program, Qtech: Duct Diagnostics and Repair. Through Qtech, contractors can offer their employees on-demand training in quality HVACR ...

PJ MAC HVAC Air Duct Cleaning announced an expansion of its ductwork repair services this week, outlining operational updates intended to support residential and commercial systems across the region.

The Technician's Guide equips practitioners with the knowledge to properly implement all of the measurement procedures required in the HVAC QI Specification. This Guide & Workbook is intended to ...