Your HVAC & Plumbing Source In Johnson City, TN!

At Modern Supply – Johnson City, TN wholesale location, we are the supplier of complete lines of residential and commercial HVAC supplies from leading manufacturers. Some of the lines we carry include Rheem, Honeywell, Gray Metals and Diversitech. Our comprehensive HVAC supply offering enables us to quickly and easily meet virtually any project requirement.
More than just an outstanding HVAC distributor here in Johnson City, Tennessee; our highly-skilled associates are dedicated to providing you with the highest level of customer service and offer value-added solutions – including technical advice and warehouse management – all designed to help our customers be more profitable. We’re your neighbor with the HVAC products you need, when you need them.

Showroom
  • Appointment Only
    Click To Schedule
  • Dozens Of Brands

  • Hundreds Of Products

  • Consult With Our Experts

  • By Appointment
    Or Walk-in

  • Hands On Experience

  • Plan Your Renovation Or New Construction

Full Lines Of Water Heaters And Plumbing Supplies

Check Out Our Plumbing Brands

We Carry Navien Tankless Water Heaters

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Part Of

Hajoca Corporation

In 1858, one enterprising individual invested his life savings of $200 to start a business grinding key stops for plumbers in Philadelphia. More than 150 continuous years of service later, that business is known as Hajoca Corporation. Hajoca has a robust history of helping to shape advances in plumbing. But we attribute our success to two simple truths – a unique business philosophy and talented people.

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We Deliver!

Ask Us About Our 75 Mile Radius Delivery Program

Industry Leading Technology From Rheem

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We’re Here To Help!

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