Johnstone Supply

Johnstone Supply operates as a heating equipment supplier on Chicago's Northwest Side, serving contractors and trades professionals rather than residential homeowners directly. The store maintains a 3.5-star rating compiled from 62 customer reviews, with operating hours stretching from 7:30 AM through 5 PM on weekdays and a Saturday morning window from 8 AM until noon. Based at store565 in the Johnstone Supply network, this location functions as a wholesale distribution point for HVAC technicians, facility managers, and licensed installers seeking equipment, parts, and components for commercial and residential projects. The Chicago market location participates in regional training programs covering live fire techniques and boiler quoting, connecting area contractors with manufacturer resources specific to Midwest installation requirements.

Unlike retail HVAC retailers targeting do-it-yourself homeowners, this supplier stocks professional-grade equipment spanning multiple categories drawn from the website: residential unitary systems including furnaces, split systems, and mini-splits; commercial rooftop units; geothermal and high-velocity air systems; and an extensive parts inventory encompassing compressors, coils, motors, and electrical components. The supplier offers contractor tools through their online portal, extended warranty programs, and handles RTU quote requests for commercial projects. Wisconsin-focus rebate program documentation indicates partnerships allowing contractors to access energy efficiency incentives when installing qualifying equipment, a practical benefit passed through to end customers.

Customer reviews reveal challenging experiences that warrant transparency. Multiple reviewers describe encounters with staff members including Nathan at the counter, recounting instances where warranty parts were supposedly in stock yet required ordering, extending repair timelines during cold weather emergencies. One reviewer documented a 35-minute telephone hold on a Saturday before abandoning their call. Another described being directed to purchase parts from Amazon despite visiting with a licensed HVAC professional, while a third mentioned being told their pricing was elevated and offered guidance to dispute credit card charges for incorrect components sold.