Johnstone Supply

Johnstone Supply in Farmingdale, New York operates as a heating equipment supplier serving licensed HVAC contractors across Long Island. The facility holds a 3.9-star rating drawn from 73 customer reviews, with operating hours Monday through Friday from 7 AM to 5 PM and Saturday mornings until noon. As a commercial supply house, the business stocks residential and commercial HVAC equipment including furnaces, split systems, mini-split configurations, and air handlers, functioning as a distributor rather than a residential installation contractor.

The Farmingdale location distinguishes itself through an Amana dealer partnership, offering the full line of residential unitary equipment and extended warranties. Contractors access specialized tools through the store's contractor portal, including EZ-Locker pickup for after-hours parts retrieval and a loyalty rewards program that accumulates value on repeated purchases. The training calendar provides ongoing education opportunities, while the quote approval and return merchandise authorization forms streamline administrative workflows for professional installers.

Customer reviews consistently identify several team members by name who provide exceptional support. Reviewers note that Beth answers calls with a warm greeting, while Kevin manages the counter with efficiency. Adonis receives recognition for resourcefulness, Billy provides technical support via text, and Victor is specifically sought out for complex problems. One reviewer describes the team as his go-to place after 20 years of dealing with supply houses, praising their willingness to assist with technical questions and equipment quotes.