Behind the copper fittings contractors install every day sits a surprisingly large American manufacturing operation.

NIBCO's Stuarts Draft, Virginia plant covers approximately 420,000 square feet and has annual production capacity of roughly 40 million pounds of copper products.

The plant can manufacture 3,085 individual SKUs.

Copper Is Recycled Inside the Plant

The facility uses recycled copper and processes material through a vertically integrated operation that runs from copper melting through finished tubing and fittings.

The copper used for fittings is approximately 99.9% pure.

For contractors, this is the manufacturing chain behind products that can eventually end up in:

refrigerant piping,

hydronic systems,

domestic water,

and commercial mechanical installations.

Automation Is Increasing

NIBCO has invested in:

robotics,

automated tooling,

and manufacturing equipment.

One example is automated O ring installation for PressACR fittings.

Automation helps the company increase consistency while continuing to manufacture in the U.S.

Copper Is Strategically Important

Copper has become one of HVAC's most closely watched materials.

It is essential across:

coils,

refrigerant tubing,

motors,

electrical wiring,

and plumbing.

Changes in copper pricing or availability can therefore ripple throughout contractor costs.

The Takeaway

Contractors usually see copper after it reaches a distributor.

NIBCO's plant shows the industrial scale behind that inventory.

One Virginia factory alone can produce approximately 40 million pounds of copper products every year.

That makes domestic manufacturing capacity a meaningful part of HVAC supply chain resilience.