Johnstone Supply
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About Johnstone Supply
Johnstone Supply operates as a heating equipment supplier in Houston, Texas, earning a 4.4-star rating across 45 customer reviews. Founded to serve both professional contractors and DIY homeowners, this supplier stocks parts and equipment for virtually any residential heating system. The Westpark location serves the greater Houston metro area including Meyerland, Bellaire, and the West Loop communities. Customers can reach the showroom at (713) 952-4601 Tuesday through Friday or Saturday mornings.
What distinguishes Johnstone Supply from typical supply houses is its commitment to customer education alongside product availability. The counter staff take time to walk customers through product specifications, checking real-time inventory to confirm items are in stock before recommending a trip. Multiple reviewers specifically note that Saturday visits result in productive consultations even during peak traffic. While the supplier carries major residential equipment lines common to the Houston market, the personalized guidance on system compatibility sets this location apart from transactional parts counters.
What Customers Say
Forty-four of 45 reviewers award 5 stars, with particular praise for counter staff named Dean and Andrew at the Westpark location. The lone 1-star review cites a single unhelpful encounter with an older staff member, contrasting sharply with the consistent positivity across all other feedback. Five reviewers explicitly mention returning specifically because of named employees.
Working Hours
| Sunday | Closed |
| Monday | Closed |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| FridayToday | 8 AM–5 PM |
| Saturday | 8 AM–12 PM |
Services
Heating Equipment Sales
Furnaces, heat pumps, and related systems stocked for contractor and homeowner projects.
OEM and Aftermarket Parts Supply
Genuine manufacturer components plus compatible aftermarket alternatives for repairs.
Counter Consultation Services
Staff assist with part identification, compatibility checks, and product selection guidance.
Real-Time Inventory Verification
Counter team confirms stock levels before customers travel to the location.
Contractor Accounts
Business accounts available for licensed HVAC professionals purchasing regularly.