Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in Baldwin, New York, serving the greater Nassau County area with HVAC equipment and parts for contractors and professionals. The business holds a 3.5-star rating compiled from 36 customer reviews, reflecting a customer base that skews toward trade professionals rather than residential homeowners. Located on Merrick Road in Baldwin, the supplier maintains standard weekday hours from 7 AM to 5 PM with Saturday availability until noon, closed on Sundays.

The supplier distinguishes itself through an Amana dealer partnership and maintains an active training calendar for contractor education, offering programs that keep trade professionals current on installation techniques and equipment advances. Their website references a loyalty rewards program and EZ-Locker Pick Up service, conveniences designed for contractors who maintain accounts and require efficient parts procurement. The business carries a full line of residential and commercial HVAC equipment including split systems, mini-split systems, single packaged units, furnaces, and evaporator coils, positioning them as a comprehensive resource for installation professionals.

Customer reviews highlight specific team members who deliver exceptional service. Carlos Velasquez praised Jimmy and the crew for their willingness to source difficult-to-find parts, noting they will work to get items right away if not in stock. Another reviewer described the team as the best in the industry with remarkable knowledge and a commitment to bringing in needed inventory. However, several negative reviews from non-contractor customers report being refused service due to their status, with one reviewer noting they were turned away after 15 minutes of waiting while seeking a simple hose adapter.