Gustave A Larson Company

The Gustave A Larson Company operates as an air conditioning system supplier in Pewaukee, Wisconsin, earning a 3.9-star rating across 31 customer reviews. This distributor serves contractors and builders throughout southeastern Wisconsin, providing equipment, parts, and indoor air quality solutions for both residential and commercial projects. The company marks a significant milestone, celebrating 90 years in business from 1936 to 2026, demonstrating nearly a century of industry continuity.

This contractor supplier distinguishes itself through specialized expertise in A2L refrigerant transition and SEER2 efficiency standards, offering training and resources to help industry professionals navigate evolving regulations. The company maintains a comprehensive product catalog spanning residential equipment, commercial HVAC systems, refrigeration products, and hydronics or geothermal solutions. Customers can access online ordering through a B2B portal, and the business offers utility rebate programs alongside marketing co-op opportunities for partners.

Customer reviews reveal mixed experiences. One reviewer arriving four hours early was unloaded within an hour, praising friendly and helpful employees while noting a possible management change. Another driver with a noon appointment arrived at 10:30 AM and waited three hours, though the team completed unloading by 3:30 PM. A third reviewer reported waiting over seven hours to be unloaded, marking one of the worst warehouse experiences. The pattern suggests appointment scheduling significantly impacts service speed.