Johnstone Supply
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Claim This BusinessAbout Johnstone Supply
Johnstone Supply operates as a wholesale heating equipment supplier in Rochester, Minnesota, serving licensed contractors exclusively since establishing a regional presence in the Midwest HVAC distribution network. With a 4.2-star rating drawn from 10 customer reviews, the company has cultivated a reputation for rapid parts procurement and technical support across Olmsted County and surrounding communities including Austin, Winona, and the broader southeastern Minnesota corridor. The retail location maintains standard hours Monday through Friday from 7 AM to 5:30 PM, providing will-call pickup and quote services for properly licensed HVAC professionals.
The distributor distinguishes itself through a specialized contractor-only model that prioritizes professional trade customers over residential walk-in traffic. Their storefront showcases an extensive inventory of equipment ranging from gas and oil furnaces to mini-split systems, variable capacity units, and field-installed accessories. The Minnesota market offerings include live fire training programs, enabling technicians to maintain certification credentials while accessing manufacturer-direct product knowledge. Additionally, the store facilitates Wisconsin Focus on Energy rebate processing for qualifying efficiency upgrades, helping contractors streamline documentation for homeowners pursuing energy incentive claims.
Customer feedback highlights specific team members including Brent, identified by name across multiple five-star reviews as a responsive point of contact who answers calls day and night. Reviewers describe scenarios where the team located obscure replacement components, provided same-day availability during emergency service calls, and navigated complex cross-reference searches to identify compatible parts when OEM inventory proved unavailable. One reviewer explicitly notes the staff will locate hard-to-find items that competitors refuse to source, though multiple customers clarify the business does not sell directly to homeowners conducting personal repairs.
What Customers Say
Five of seven publicly visible reviewers award five-star ratings, with all positive feedback citing the team's willingness to locate difficult parts and provide rapid technical assistance. Two one-star reviews explicitly object to the contractor-only policy, with one noting refusal to sell without contractor credentials and another characterizing the experience as unfavorable for non-professional customers.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–5:30 PM |
| Tuesday | 7 AM–5:30 PM |
| Wednesday | 7 AM–5:30 PM |
| ThursdayToday | 7 AM–5:30 PM |
| Friday | 7 AM–5:30 PM |
| Saturday | Closed |
Services
Commercial HVAC Equipment Supply
Single-packaged units, split systems, RTU rooftop equipment, and manufactured housing solutions for commercial installation projects.
Residential Split Systems
Air handlers, evaporator coils, gas furnaces, oil furnaces, and single-zone and multi-zone mini-split configurations for homes.
Variable Capacity Systems
Variable-speed heat pump technology and advanced capacity-controlled systems for residential efficiency upgrades.
Parts Cross-Reference Search
Database lookup service to identify compatible replacement components across multiple manufacturer product lines.
Contractor Account Services
Account registration, online bill payment through Billtrust, and dedicated contractor pricing structures for qualified trade professionals.
Extended Warranty Processing
Manufacturer-backed extended warranty registration and claim support for qualifying residential and commercial equipment.
In-Person Parts Procurement
Will-call pickup for contractorcustomers requiring immediate access to stock items and specialty components.