True North Heating and Cooling of Tennessee

True North Heating and Cooling operates as a full-service heating and cooling contractor serving Knoxville and the surrounding Tennessee region, with additional operations in the Colorado Springs market. Owner Isaac Hackler has carried a licensed HVAC contractor credential for over two decades and maintains nearly 50 vendor certifications across major equipment brands. The company holds a perfect 5.0-star rating from four client reviews, with technicians available around the clock every day of the week. Property managers account for a significant portion of the client base, with dedicated programs for maintaining HVAC systems across multi-family and commercial properties.

The company distinguishes itself through an unusually comprehensive warranty package. New equipment installations include a one-year labor warranty backed by the True North Guarantee, while manufacturer warranties extend up to ten years when customers register their units. Repair components receive a 30-day parts warranty. All service vehicles stock common parts, enabling same-day completion for many repair scenarios without follow-up appointments. Hackler's team emphasizes transparent diagnostics, clients report that technicians explain the exact problem, show photos of worn components when applicable, and provide honest assessments about whether repair or replacement best serves the homeowner's long-term interests.

Customer feedback consistently names technician Jared as a primary reason for high satisfaction. One reviewer described Jared crawling into a crawl space to reseal ductwork that had been leaking for years, resolving persistent hot and cold spots throughout the home. Another detailed a basement remodel project where Jared rerouted HVAC supply lines, installed an uncommon seven-inch round register, and performed full system servicing, all completed in a single appointment. A third reviewer noted Jared diagnosed and repaired an AC failure in thirty minutes during a summer afternoon. The common thread across these reviews describes respectful communication, punctual arrival, and clearly explaining system behavior for older equipment.