Johnstone Supply

Is this your business?
Verify your details, earn a verified badge, and start getting customer inquiries. Takes about a minute by phone.
Claim This Business FreeClaiming is free. Featured placement is optional, $99/mo.
About Johnstone Supply
Johnstone Supply operates as a heating equipment supplier in Monaca, Pennsylvania, holding a 3.6-star average rating drawn from 39 customer reviews. The location serves residential and commercial clients throughout the Monaca region, operating Monday through Friday from 7 AM to 4:30 PM. The business functions primarily as a distributor, offering an array of HVAC equipment including split systems, mini-split systems, furnaces, air handlers, and evaporator coils. Customers can access field-installed accessories and multi-zone systems designed for both standard and variable capacity applications. The supplier maintains an eCommerce platform and offers account registration for contractors seeking dedicated purchasing options.
The supplier distinguishes itself through an extensive catalog spanning multiple HVAC categories. Their website showcases commercial single-packaged units alongside residential solutions, with specialized offerings including manufactured housing equipment and extended warranty programs. The product lineup features major brands in the furnace category, including gas and oil heating options. They provide installation accessories and field-installed accessories that support professional contractor projects. The business operates as a contractor-focused distributor with tools and account management designed specifically for trade professionals.
Customer experiences reveal a mixed service landscape. One reviewer noted receiving an exact-match part quickly, with the recommended component working perfectly upon installation. Several reviews document challenges with retail customer policies, with at least one homeowner reporting being turned away on a cold Saturday when seeking furnace parts. Another reviewer described encountering dismissive attitudes when asking product questions. A third mentioned being ignored upon arrival and receiving no acknowledgment for their business. These accounts suggest service quality may vary depending on customer type and timing of visit.
What Customers Say
Of 39 reviews, the rating splits between one five-star endorsement praising quick, accurate parts and multiple one-star accounts describing dismissive interactions and refusal to serve retail customers. Positive feedback cites specific part matching, while negative reviews focus on staff attitudes and policy enforcement.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–4:30 PM |
| Tuesday | 7 AM–4:30 PM |
| Wednesday | 7 AM–4:30 PM |
| ThursdayToday | 7 AM–4:30 PM |
| Friday | 7 AM–4:30 PM |
| Saturday | Closed |
Services
HVAC Equipment Distribution
Supplying split systems, mini-splits, furnaces, and air handlers for residential and commercial applications.
Commercial HVAC Solutions
Single-packaged units and commercial split systems designed for business installations.
Residential Heating Systems
Gas furnaces, oil furnaces, and single-packaged units for home heating needs.
Mini-Split Systems
Single-zone and multi-zone systems including variable capacity options for flexible climate control.
Evaporator Coils & Air Handlers
Indoor coil units and air handling equipment compatible with various split system configurations.
Installation Accessories
Field-installed accessories and installation supplies supporting professional contractor work.
Contractor Account Services
Account registration and contractor tools enabling dedicated purchasing and project management.
Parts & Components
Replacement parts and duct components available for professional repair and maintenance projects.