For contractors, technicians, and facility managers in TX, Johnstone Supply stands as your essential partner for all things HVAC and refrigeration. We understand that your reputation depends on having the right part, at the right time, and at the right price. That's why we've built our business around supporting the tradespeople who keep homes comfortable and businesses running.Our extensive inventory goes far beyond the basics. Whether you're servicing a residential furnace, installing a complex commercial split system, or maintaining a refrigeration unit, you'll find the specific components you need. From OEM replacement parts for major brands to universal controls, motors, valves, and the...
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Our Services
HVAC Equipment & System Sales
<p>Whether you're installing a new system for a residential client or upgrading a commercial building's climate control, Johnstone Supply in TX provides a comprehensive range of HVAC equipment. We supply everything from single packaged units and split systems for homes to sophisticated mini-split, multi-zone, and variable capacity systems for precise temperature management. For manufactured housing and specialty applications, we offer tailored solutions including evaporative cool...
<p>Whether you're installing a new system for a residential client or upgrading a commercial building's climate control, Johnstone Supply in TX provides a comprehensive range of HVAC equipment. We supply everything from single packaged units and split systems for homes to sophisticated mini-split, multi-zone, and variable capacity systems for precise temperature management. For manufactured housing and specialty applications, we offer tailored solutions including evaporative coolers, fan coil units, geothermal units, and high-velocity air systems.</p><p>Our process is designed for efficiency. Our team helps you select the right equipment based on the specific requirements of the job, ensuring proper sizing, compatibility, and efficiency ratings. We provide support from the initial matchup through to the availability of all necessary installation accessories. For contractors in TX, this means less time sourcing and more time installing with confidence, backed by our extended warranty options on many residential unitary products.</p><p>We are the best choice because we combine a vast inventory with technical expertise. We don't just sell boxes; we provide the systems and the support that allow you to deliver reliable, high-performance results to your customers, strengthening your reputation as a top technician in the region.</p>
HVACR Parts & Component Supply
<p>When a system breaks down, every minute counts. Johnstone Supply in TX is your critical source for the HVACR parts that get systems back online fast. Our inventory spans tens of thousands of components for air conditioning, refrigeration, heating, and hydronic systems. Need a specific compressor, evaporator coil, expansion valve, or pressure switch? We have it. From common wear items like capacitors and motors to specialized refrigeration components like filter-driers, solenoid valves,...
<p>When a system breaks down, every minute counts. Johnstone Supply in TX is your critical source for the HVACR parts that get systems back online fast. Our inventory spans tens of thousands of components for air conditioning, refrigeration, heating, and hydronic systems. Need a specific compressor, evaporator coil, expansion valve, or pressure switch? We have it. From common wear items like capacitors and motors to specialized refrigeration components like filter-driers, solenoid valves, and vibration eliminators, we stock the parts professionals need most.</p><p>This service is for HVAC technicians, refrigeration specialists, and maintenance professionals across TX who require immediate access to quality parts. The process is straightforward: bring us a model number, use our cross-reference tools, or describe the issue, and our knowledgeable staff will help you locate the exact part or a suitable equivalent. We understand the urgency of repair calls and prioritize getting you what you need with minimal delay.</p><p>We are the superior choice for parts because of our depth of inventory and our focus on the trade. We carry both OEM and high-quality aftermarket parts, ensuring you have options for every budget and application. Our commitment is to be the most reliable parts desk in TX, helping you minimize downtime and maximize customer satisfaction.</p>
Contractor Tools, Supplies & Support
<p>A successful installation or repair requires more than just the primary component. Johnstone Supply supports contractors in TX with a full suite of installation materials, maintenance supplies, and professional-grade tools. This includes everything from the fundamentals like line sets, duct components, sheet metal, and insulation to electrical supplies such as conduit, whips, wire, and circuit breakers. We also stock essential job-site supplies: brazing and soldering materials, condensa...
<p>A successful installation or repair requires more than just the primary component. Johnstone Supply supports contractors in TX with a full suite of installation materials, maintenance supplies, and professional-grade tools. This includes everything from the fundamentals like line sets, duct components, sheet metal, and insulation to electrical supplies such as conduit, whips, wire, and circuit breakers. We also stock essential job-site supplies: brazing and soldering materials, condensate drain solutions, adhesives, sealants, and mounting hardware.</p><p>Furthermore, we provide the testing and diagnostic equipment that separates good technicians from great ones. Find combustion analyzers, carbon monoxide detectors, leak detectors, airflow measurement tools, and manifold gauge sets on our shelves. This service is designed for the working professional who needs a single, trusted source to fully kit out their truck or replenish their toolkit before the next job in TX.</p><p>Choosing us for your supplies means efficiency. Instead of running to multiple big-box stores, get all your ancillary needs met in one stop. Our staff, many with field experience, can advise on the best product for the task. We help you work smarter, safer, and more profitably by providing the complete package of support that today's HVAC and refrigeration professional requires.</p>
“I really miss some of the old workers that used to work here a few years ago. Here at the store very rude. Just a bunch of middle-age man who angry at the world.”
— Vidal Meza
“Horrible Experience, called and was quoted one price arrived and billed double. When asked why, Counter sales staff Smugly replied " Do you have a license? if you do i can charge you quoted price." Horrible customer service could have relayed difference much better and over the phone. item sells on line with free shipping for half price charged. 1y later capacitor bad again.”
— Juan Gonzalez
“Shout out to John who is always helpful and checks to make sure I have what I need. While back he went the extra mile and I didn't get a chance to say, thanks! This is my preferred Johnstone location.”
— E Busch
“I enjoyed shopping here. They are always very courteous and help me with what I am looking for. When I'm working in South Austin and need anything HVAC related I go here”
— Jaime Olvera
“Shady as heck!
Went in to get a capacitor, they upsold me on a motor I didn't need, and switched out mu original capacitor with the wrong one and told me I could return what I didn't use. Then when I tried to return said no refunds. Luckily I got my money back and a buddy had the capacitor I needed, if not I would have been without ac for 4 days. I won't ever go back here!”
— Shaggy Rogers
“These guys are a joke. Won’t even take the time to look up a part for you or if it can be ordered. My licensed ac guy is in his 70s is independent and been to the store many times. He doesnt get on the internet, he doesn’t like calling around. He does small family and friend jobs (cuz why would you do more in your 70s). These all high and mighty guys who work here won’t even look up a part when I call to see if it’s available so I can send my ac guy down to them. With the internet taking over these days, I see this place getting taken down any year. Avoid this place unless you like to belittled and made fun of. Buy everything online and take this brick and mortar out. They’re one of the bad guys still standing.. won’t be long..”
— Chris
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For contractors, technicians, and facility managers in TX, Johnstone Supply stands as your essential partner for all things HVAC and refrigeration. We understand that your reputation depends on having the right part, at the right time, and at the right price. That's why we've built our business around supporting the tradespeople who keep homes comfortable and businesses running.Our extensive inventory goes far beyond the basics. Whether you're servicing a residential furnace, installing a complex commercial split system, or maintaining a refrigeration unit, you'll find the specific components you need. From OEM replacement parts for major brands to universal controls, motors, valves, and the latest refrigerants, our shelves are stocked to keep your projects on schedule.We're more than just a warehouse. Our team brings deep industry knowledge to every interaction. Need help cross-referencing a part? Looking for a solution to a tricky system issue? We're here to provide technical support and recommendations you can trust. We serve the professionals who serve TX, and we take that responsibility seriously.Your success is our success. We offer the tools, training resources, and reliable supply chain that help your business grow. From our convenient location, we're committed to being the most dependable HVACR supplier in the region, ensuring you have what you need to deliver quality work, every time.
