Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in San Bernardino, California, holding a 3.5-star rating across 30 customer reviews. This location functions primarily as a trade distributor, supplying HVAC equipment and parts to licensed contractors rather than retail homeowners. The storefront maintains weekday hours from 7 AM to 5 PM and offers Saturday availability from 8 AM to noon, providing critical weekend access for contractors managing emergency service calls.

What distinguishes Johnstone Supply from standard HVAC contractors is its wholesale distribution model and broad equipment inventory. The supplier carries residential and commercial HVAC systems including single packaged units, split systems, mini-split systems, furnace units, evaporator coils, and air handlers. They also stock field-installed accessories, extended warranties, and specialty heating equipment. This catalog positions them as a one-stop equipment source for professional installers needing same-day parts and system procurement.

Customer experiences at this location reveal mixed but informative service patterns. One reviewer praised the Saturday hours and fair pricing, noting the counter staff had a capacitor in stock for their AC repair needs. However, another reviewer documented being redirected to an electronics middleman when seeking a simple capacitor, highlighting the trade-only policy. A third customer described challenges with part ordering and return policies during a mini-split installation, advising DIYers to source components elsewhere. These scenarios illustrate that while contractors find value in the inventory, homeowners should confirm accessibility before visiting.