Johnstone Supply

Johnstone Supply in Baton Rouge operates as a wholesale HVAC equipment distributor serving professional contractors across Louisiana's capital region. With 43 verified customer reviews averaging 4.6 stars, this supplier has built a two-decade reputation among area HVAC technicians who rely on their inventory for both routine maintenance jobs and emergency repairs. The store maintains weekday hours from 7 AM to 5 PM with Saturday availability until noon, positioning itself as a reliable weekday resource for contractors who need parts quickly between service calls.

What distinguishes this supplier from standard retail outlets is their contractor-only distribution model combined with an unusually comprehensive inventory system. Their website displays real-time stock levels and pricing, allowing technicians to verify availability before making a trip. The product range spans residential and commercial split systems, mini-split configurations including variable-capacity models, manufactured housing equipment, and specialized evaporator coils. A review specifically praises their ability to source hard-to-find components that other suppliers cannot obtain, suggesting established relationships with multiple manufacturers.

Multiple long-term customers cite consistent experiences with knowledgeable counter staff who proactively suggest complementary parts for specific repairs. One reviewer describes a nearly 20-year relationship with the location, noting counter personnel consistently recommend additional components that match a technician's initial purchase. Another review from a mechanical contractor highlights their clean warehouse organization, labeled inventory systems, and a delivery fleet that enables same-day service to their own residential and commercial clients without project delays.