Johnstone Supply

Johnstone Supply in Troy, New York, has served the Capital Region for more than 75 years as a family-owned heating equipment supplier. With a 4.3-star rating from 30 reviews, the store provides HVAC equipment, parts, and accessories to contractors and homeowners across Troy, Green Island, and the surrounding Albany County area. The retail location maintains standard business hours from 7 AM to 5 PM Monday through Friday, closed on weekends.

What distinguishes this supplier is their parts-finding capability and equipment breadth. The website shows inventory ranging from gas and oil furnaces to mini-split systems, single-packaged units, and variable-capacity residential systems. They offer extended warranties on residential unitary equipment and carry field-installed accessories for both residential and commercial applications. A training resource center supports contractor customers seeking professional development.

Customer reviews highlight specific staff members who made a difference. George Labarge needed an inducer motor for an aging system that other suppliers could not locate; Johnstone Supply identified and ordered the correct part on the first attempt. A newer HVAC business owner praised Rob at the Green Island location for taking time to understand an AC repair situation and guiding them to exact parts needed. One critical review from Michael Dolan notes a mismatched igniter sale with unhelpful follow-up, representing the sole low rating among 30 reviews.