Duplechain Heating and Air

Duplechain Heating and Air has operated in Huntsville for over three decades, holding Alabama HVAC license 2023064. Owner Greg Duplechain personally manages the company, which maintains a 5.0-star average across 10 verified customer reviews. The contractor serves Huntsville and the surrounding Madison County area, specializing in residential heating and cooling systems for homeowners throughout the Tennessee Valley.

What distinguishes this contractor is a thorough diagnostic approach that many reviewers explicitly praise. Rather than addressing only the immediate complaint, Greg evaluates entire systems to provide homeowners with a complete picture before recommending repairs. The company offers a free second opinion service for customers who have received estimates elsewhere, and maintains a $100 spring cleaning promotion for annual maintenance. This diagnostic philosophy appears repeatedly in customer feedback, with multiple reviewers noting that the technician identified issues previous contractors had missed.

Customer stories reveal specific scenarios that illustrate the company is service style. John Moreno described how Greg corrected thermostat wiring that had been incorrectly installed, enabling both stages of the motor to function properly. Duane Rice recounted a project involving relocation of a package unit to a different location, describing the work as a challenge the team embraced. Michael Moore directly compared Duplechain is honest pricing to a larger company is quote, describing a $600 relay replacement that he estimated cost $20-$30 in parts.