Gustave A Larson Company

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Claim This BusinessAbout 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.
What Customers Say
Three of eight detailed reviews describe significant unloading delays when arriving before scheduled appointment times, with wait times ranging from 3 to over 7 hours. Positive reviews praise the team is friendly and helpful, with one customer specifically noting efficient service after arriving early. Three reviewers give 5-star ratings while four give 1-star ratings, indicating highly polarized customer experiences.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–5 PM |
| Tuesday | 7 AM–5 PM |
| Wednesday | 7 AM–5 PM |
| Thursday | 7 AM–5 PM |
| Friday | 7 AM–5 PM |
| SaturdayToday | Closed |
Services
Air Conditioning System Supply
Distributor of residential and commercial AC equipment for contractors and builders.
Commercial HVAC Systems
Full catalog of commercial heating, ventilation, and air conditioning equipment.
Refrigeration Products
Commercial refrigeration equipment and components for various applications.
Hydronics and Geothermal
Specialized systems including hydronic heating and geothermal solutions.
Indoor Air Quality Products
Residential and commercial IAQ solutions including ventilation and filtration.
Parts and Accessories
HVAC parts, components, and accessories for repairs and maintenance.
B2B Online Ordering
Web-based ordering portal for registered contractor customers.
HVAC Training and Education
Training classes on regulations, equipment, and industry standards.