Knight Air Conditioning & Heating Co.

Knight Air Conditioning & Heating Co. has served the Lawrenceville area as an HVAC contractor for over two decades, earning a 4.7-star average across 74 customer reviews. The company operates around the clock, every day of the week, providing residential heating and cooling services to homeowners in Lawrenceville and surrounding Gwinnett County communities. This 24/7 availability distinguishes them from contractors with standard business hours, particularly valuable during Georgia's extreme summer heat waves and occasional winter cold snaps that push heating systems to their limits.

This contractor operates as a Trane dealer, installing and servicing Trane heat pump systems for local homeowners. The company operates under the Casteel umbrella following an acquisition, which some long-term customers note has brought changes to pricing structures and service approaches. Their technicians perform semi-annual inspections and maintenance visits, providing tune-ups and system diagnostics to keep residential HVAC units operating efficiently throughout the year.

Customer reviews highlight specific technicians who have delivered thorough, personable service. Charles Robinson described technician Michael as punctual and communicative, explaining each inspection step in understandable terms during a service visit. Reviewer Jan mentioned Thomas Muller arrived within 20 minutes of an updated time window despite a scheduling delay, performing a comprehensive semi-annual inspection while respecting the home. Another reviewer noted technician efficiency during a July 2019 tune-up visit, with the team arriving on schedule and completing work promptly.