Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in Westlake Village, California, holding a 3.5-star rating derived from 22 customer reviews. The store maintains weekdays from 7AM to 5PM with Saturday availability until noon, serving contractors across the Simi Valley and Thousand Oaks regions. This location functions as a trade-only distributor, meaning retail customers without a registered business account may face purchasing restrictions on certain items.

The Westlake Village branch stocks an extensive array of HVAC equipment including single-packaged units, split systems, and mini-split configurations alongside evaporator coils and both gas and oil furnaces. They carry residential unitary products such as air handlers, extended warranties, and field-installed accessories. Their commercial catalog features multi-zone and variable capacity systems, distinguishing them from standard residential-focused suppliers. The store also offers multi-zone systems designed for larger residential and light commercial applications.

Customer feedback highlights specific staff members who have managed noteworthy service scenarios. Brad Grant receives consistent recognition for professionalism at the front desk, while Johnathan Yanz is cited for handling customer inquiries with expertise. One reviewer notes sending service personnel and installers to this location without hesitation, suggesting reliability for ongoing contractor relationships. The mixed rating reflects varying experiences, with some clients praising the clean, professional environment while others criticize return policies and customer service interactions.