Gustave A Larson Company

Gustave A Larson Company supplies heating and cooling equipment to contractors and trades professionals across Lombard and the surrounding Illinois communities. The company maintains a 4.7-star rating drawn from 17 customer reviews, with operating hours from 7 AM to 5 PM Monday through Friday. Established in 1936, this family-founded business has spent nine decades building relationships with both supplier partners and contractor customers throughout the region. As a wholesale distributor, the company stocks residential and commercial HVAC equipment, parts, accessories, and indoor air quality solutions for professionals who install, service, and maintain systems in homes and buildings.

The company distinguishes itself through deep inventory depth and technical expertise in emerging industry standards. Gustave A Larson Company has positioned itself as a resource for the A2L refrigerant transition, providing training and guidance on regulatory changes affecting refrigerants and efficiency standards. They carry products across multiple categories including residential equipment, commercial HVAC, refrigeration, hydronics, and geothermal systems. The business maintains an online ordering platform for contractor accounts and offers utility rebate program information to help customers maximize equipment incentives.

Customer reviews consistently highlight the counter personnel who assist contractors with product selection and troubleshooting. Reviewers specifically mention Ann and Vikki as helpful team members who go beyond standard service, with one noting that the more you work with the company, the more flexible they become on pricing. Multiple reviewers emphasize the extensive stock available, with same-day or quick-turn access to parts and equipment that other distributors cannot provide. The company also provides a building systems lab for training and product demonstrations.