Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in Marietta, Georgia, holding a 4.3-star rating derived from 43 customer reviews. The location serves contractors and homeowners across the metro area, offering an extensive catalog of residential HVAC components including furnaces, split systems, mini-split configurations, and air handlers. Store hours run Monday through Friday from 7:30 AM to 5:00 PM, with Saturday and Sunday designated as closed.

The supplier differentiates itself through contractor-focused distribution, maintaining an Express Locker Pickup system that enables same-day parts retrieval without in-store waiting. Their digital platform includes Cross-Reference Search functionality allowing technicians to locate compatible components across multiple brand specifications. The inventory spans variable capacity systems, multi-zone configurations, and extended warranty programs, positioning the location as a resource for both routine maintenance parts and specialized equipment for aging residential systems.

Customer narratives highlight specific team members who have delivered beyond-standard service. Reviewers describe Bob accommodating a Sunday afternoon holiday weekend visit with, quote, great attitude very very helpful. Another account credits a team member with securing a needed component for a ten-year-old Amana furnace at a very reasonable price, in stock. The 40-year customer relationship cited by one reviewer suggests sustained contractor in the professional community.