Gustave A Larson Company

Gustave A Larson Company holds a 4.9-star rating across 16 reviews in Arlington Heights, Illinois, serving the surrounding communities as a comprehensive HVAC and refrigeration equipment supplier. The business traces its roots to 1936, marking nine decades of continuous operation in the heating and cooling industry. Their facility stocks an extensive inventory of residential and commercial equipment, with particular depth in refrigeration-specific products including Copeland condensing units, controls, and high-efficiency XJ condensing units alongside modern EC motor technologies.

This supplier distinguishes itself through dedicated contractor-focused services, offering online B2B ordering, in-house parts sourcing, and specialized training programs on emerging A2L refrigerant transitions and SEER2 efficiency standards. Their team serves as a regulatory resource for industry changes, providing educational materials and upcoming training sessions for professionals navigating upcoming refrigerant regulations. The location maintains a broad selection of OEM parts ready for same-day pickup, supporting both scheduled projects and urgent service needs.

Reviewers consistently highlight counter staff member Jack for going beyond standard assistance, providing technical diagrams, equipment recommendations, and field wiring guidance for walk-in cooler installations. Another reviewer recommends speaking with Juan for contractors seeking to carry their equipment line, noting competitive pricing compared to other suppliers. Multiple customers emphasize the depth of refrigeration-specific inventory and knowledge available at this location, distinguishing it from general-purpose HVAC supply houses.