Gustave A Larson Company

Gustave A Larson Company has served the Madison, Wisconsin HVAC industry since 1954, operating as a wholesale distributor that supplies equipment, parts and accessories to contractors rather than residential homeowners. Based at 2315 Pearl Street, the company maintains a 3.5-star rating across 15 Google reviews and operates Monday through Friday from 7 AM to 5 PM. The business carries residential and commercial HVAC equipment, indoor air quality products, refrigeration supplies and hydronics, positioning itself as a one-stop sourcing hub for area technicians and building managers.

The Larson operation distinguishes itself through comprehensive contractor support services including a B2B online ordering portal, utility rebate program navigation, and manufacturer warranty handling. Their inventory spans major residential brands alongside commercial refrigeration and geothermal systems, and they provide access to cross-reference guides for hard-to-find components. The company maintains a training division offering live classes and recorded sessions on topics ranging from SEER2 efficiency standards to A2L refrigerant transition requirements, demonstrating commitment to keeping contractor partners current on evolving code and technology mandates.

Customer feedback reveals mixed experiences. Wyatt Vanalstine praised the location for having everything needed for equipment servicing, awarding five stars. However, Casey Weaver described recurring frustrations with inventory accuracy, noting that phone calls sometimes route to the Rockford, Illinois branch, and ordered parts occasionally fail to materialize despite staff assurances. These accounts suggest that while the supplier excels at product availability for committed contractors, operational consistency varies between locations.