Johnstone Supply
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About Johnstone Supply
Johnstone Supply operates as a wholesale heating equipment supplier in Bellevue, Washington, serving licensed contractors throughout the Puget Sound region. With a 4.2-star rating derived from five customer reviews, the company maintains regular hours Monday through Friday from 7 AM to 4:30 PM and is closed on weekends. The business functions primarily as a distributor rather than a retail service provider, supplying HVAC equipment and parts to professional installation contractors rather than homeowners directly. Located in the greater Seattle metro area, Johnstone Supply serves contractors working in communities across King and Snohomish counties, including projects in Bellevue, Bothell, and surrounding neighborhoods.
The supplier distinguishes itself through an extensive equipment catalog that includes single-packaged units, split systems, mini-split systems, multi-zone systems, variable capacity systems, gas furnaces, oil furnaces, air handlers, and evaporator coils. As a commercial-grade distributor, they stock brands and systems designed for professional installation rather than consumer DIY projects. Their website showcases field-installed accessories, extended warranty programs, and manufacturer training resources typically reserved for licensed contractors. The company also maintains a contractor account system allowing registered professionals to request parts, process warranty claims, and access specialized inventory not available through retail channels.
Customer feedback highlights notably helpful interactions with staff members. Reviewer Tompall Lorah-Heggen specifically praised the Bellevue location's customer service and technical knowledge, rating the experience five stars and noting it surpassed the Bothell counterpart. Reviewer Suraj Lobo described the team as great and super helpful, reflecting positive experiences with staff assistance on equipment selection and parts sourcing. The sole negative review cited an instance where a customer seeking a heat pump flow sensor was directed to work through an licensed contractor, illustrating the wholesale model that supplies professionals rather than performing retail repairs.
What Customers Say
Three of five reviews award five stars, with customers specifically praising staff knowledge and helpfulness. One reviewer compared the Bellevue location favorably to the Bothell branch. The sole one-star review cited frustration with wholesale-only policies rather than service quality.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–4:30 PM |
| Tuesday | 7 AM–4:30 PM |
| Wednesday | 7 AM–4:30 PM |
| Thursday | 7 AM–4:30 PM |
| Friday | 7 AM–4:30 PM |
| SaturdayToday | Closed |
Services
HVAC Equipment Distribution
Wholesale supply of heating and cooling equipment to licensed contractors throughout the Puget Sound region.
Split System Units
Distribution of split system HVAC units including air handlers, coils, and matching components for professional installation.
Single Packaged Units
Supply of single-packaged heating and cooling systems designed for residential and commercial applications.
Mini-Split Systems
Mini-split and variable capacity systems including single-zone and multi-zone configurations for flexible installs.
Furnace Supply
Gas furnaces and oil furnaces available through contractor accounts for professional heating system projects.
Commercial HVAC Equipment
Commercial-grade HVAC systems and accessories designed for larger-scale installation projects.
Parts and Accessories
Installation accessories, field-installed components, and replacement parts available to registered contractors.
Warranty Programs
Extended warranty processing and manufacturer warranty claim services for contractor account holders.