Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in Oak Creek, Wisconsin, serving contractors and trades professionals across the greater Milwaukee metropolitan area. The business maintains a 4.6-star rating derived from 10 customer reviews, reflecting consistent service quality in the regional HVAC supply sector. Located in southeastern Wisconsin, the supplier distributes equipment to licensed contractors performing installations and replacements throughout Milwaukee, Waukesha, and Racine counties.

The supplier offers an extensive catalog of residential and commercial HVAC equipment, including split systems, single packaged units, mini-split systems, and air handlers paired with evaporator coils. Their product lineup covers gas and oil furnaces alongside variable capacity systems designed for modern efficiency standards. Johnstone Supply distinguishes itself through contractor-focused resources such as training classes and warranty processing, supporting professional development for trades clients.

Customer feedback highlights the experiences of contractors who rely on this supplier for ongoing material needs. One reviewer references a 20-year relationship with the team, noting their commitment to resolving issues when mistakes occur. Multiple reviewers specifically mention staff helpfulness and the facility's organized dock area, indicating operational standards valued by professional customers.