Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in Alpharetta, Georgia, serving the professional contractor trade rather than residential homeowners. The location holds a 4.1-star rating compiled from 22 customer reviews. The business maintains standard commercial hours from 7:30 AM to 5 PM Monday through Friday, with weekend availability closed. Reviewers consistently describe the establishment as a contractor-focused supply hub where professionals source HVAC components, with multiple five-star ratings emphasizing the staff's willingness to assist tradespeople in locating specific parts.

The supplier maintains an extensive inventory spanning residential and commercial HVAC systems, including split systems, mini-split configurations, single packaged units, and variable capacity systems. Their product catalog features air handlers, evaporator coils, and both gas and oil furnaces alongside field-installed accessories. The website indicates extended warranty options and multi-zone system availability, positioning the location as a comprehensive resource for contractors undertaking projects across manufactured housing, residential unitary, and light commercial applications.

Customer feedback highlights specific staff interactions, with one reviewer crediting a team member named Terrific for professional counter service spanning decades. Another account describes staff assistance in identifying part sources when the location could not fulfill a specific need. A reviewer specifically notes the team successfully sourced an item that United Refrigeration could not provide, demonstrating the supplier's role in addressing procurement gaps within the contractor supply chain.