Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in Temecula, California, holding a 4.4-star rating drawn from 14 customer reviews. The location serves the surrounding communities of Murrieta, Winchester, and Menifee, providing contractors and homeowners access to HVAC equipment and components. Business hours run Monday through Friday from 7 AM to 5 PM, with Saturday availability from 8 to 11:30 AM. The supplier maintains a physical storefront at 27345 Jefferson Avenue, Suite 110, where customers can examine products firsthand before purchase.

Unlike traditional HVAC service companies that dispatch technicians to residential properties, Johnstone Supply operates as a trade-only distribution center. This model allows the business to maintain deep inventory across heating, cooling, and ventilation categories without the overhead of service vehicles and emergency dispatch systems. The supplier carries equipment suitable for both new construction installations and replacement projects, with components ranging from residential furnaces to light commercial unitary equipment.

Customer feedback highlights several staff members by name, including Javier, Brad, Matt, Noah, and Bill. Reviewers describe interactions with these team members as consistently positive, with particular praise for helpful product selection guidance. One reviewer specifically mentions the team as knowledgeable during complex electrical component questions. The supplier appears to prioritize contractor relationships, with a reviewer noting recommendations stem from years of competitive pricing in the HVAC trade.