Johnstone Supply

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About Johnstone Supply
Johnstone Supply operates as a heating equipment supplier in Sauk Rapids, Minnesota, holding a 4.0-star rating from 4 customer reviews. The business maintains Monday through Friday hours from 7 AM to 5:30 PM, serving HVAC contractors rather than residential homeowners. Their service area extends throughout Minnesota and into Wisconsin, with the website indicating active programming for the Chicago market as well. The company provides an extensive catalog of HVAC equipment including furnaces, split systems, mini-split systems, air handlers, evaporator coils, and commercial RTU units.
What distinguishes Johnstone Supply from standard HVAC distributors is their emphasis on contractor-only distribution combined with robust technical support infrastructure. The website offers specialized tools including a boiler quoting guide, RTU quote request system, and vendor product request forms. They host Minnesota Market Live Fire Trainings and maintain Wisconsin Focus on Energy rebate form processing, enabling contractors to capture available incentives for clients. Their repair request and warranty forms streamline documentation for trade professionals managing multiple installations.
Customer reviews highlight the responsive support that keeps contractors returning. Logan Cox describes the team as friendly with consistent stock availability or timely special orders. Derek Jackson contrasts his current supplier situation against the immediate assistance he previously received from Johnstone, noting the difference in service quality. A single review from a residential customer indicates the contractor-only model may not accommodate homeowners seeking direct parts purchasing.
What Customers Say
Three of four reviewers award 5 stars, praising friendly service and product availability. The single 1-star review comes from a residential customer noting the contractor-only policy, which aligns with the business model rather than indicating service quality.
Working Hours
| SundayToday | Closed |
| Monday | 7 AM–5:30 PM |
| Tuesday | 7 AM–5:30 PM |
| Wednesday | 7 AM–5:30 PM |
| Thursday | 7 AM–5:30 PM |
| Friday | 7 AM–5:30 PM |
| Saturday | Closed |
Services
HVAC Equipment Distribution
Furnaces, split systems, mini-splits, air handlers, and evaporator coils for residential and commercial applications.
Commercial RTU Units
Rooftop unit quoting and procurement for commercial installation projects.
Boiler Quoting
Specialized boiler quoting guide and support for commercial heating system specification.
Market Trainings
Live fire trainings in Minnesota and Chicago markets for contractor education.
Rebate Processing
Wisconsin Focus on Energy rebate form handling for contractor clients.
Repair & Warranty Documentation
Online repair request and warranty forms for streamlined contractor support.