Johnstone Supply

Johnstone Supply in Concord serves HVAC professionals with a 4.6-star rating across 25 verified reviews. This contractor-only supplier provides equipment, parts, and accessories to licensed installers and service technicians throughout Contra Costa County. The location operates Monday through Thursday from 7 AM to 4:30 PM, closed Fridays through Sundays. Shoppers find single-packaged units, split systems, mini-split configurations, furnaces, evaporator coils, and air handlers alongside field-installed accessories and extended warranty options.

What distinguishes this Johnstone Supply location is its team depth and product specialization. Reviewers consistently mention Joey, Tammy, and Joseph as knowledgeable staff members who go beyond order-taking to research cross-references and locate hard-to-find service parts. The commercial and residential product lines include variable capacity systems, multi-zone setups, and manufactured housing equipment. Their inventory supports both standard installations and more complex retrofits that require specialized components.

Customers like Kenneth Johnson describe the Concord team as professionals who conduct research necessary to solve parts-location challenges, a service level the reviewer contrasts with companies that cannot be bothered with actual customer service. Another reviewer notes Joey went above and beyond when placing orders, while Eddie Burger describes the staff as making his job easier through their combined knowledge and friendly environment. Steven Rivers specifically notes this is a contractor-only store with good selection and availability.