We make the jobs and the overall business of professional plumbers and HVAC technicians easier, faster, and more productive.

Anytime you call Oswald Supply, you will always speak to a live person. Our team is specially trained to provide you with the most technical and informative experience while we take care of your climate control needs.

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Whatever problem you're having with a chute door Oswald Supply has everything to fix it.

We stock and sell more chute doors and parts than anyone else nationwide with the knowledge to help you source the right part.

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Most items will ship out of our warehouse the same day if ordered before 2PM.

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Oswald Supply has what you are looking for. In-stock and ready to ship.

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Founded in 1923, family owned & operated through four generations.

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HANDHOLE / MANHOLE

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TRASH CHUTE DOORS

BOILER SECTIONS & ASSEMBLY PARTS

MINISPLITS / HVAC

PACIFIC NATIONAL TANKLESS COIL

Complete Assemblies Less Ring

BOILER SECTIONS & ASSEMBLY PARTS

OSWALD INSIGHTS

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steam boiler glass gauge

Water Level Products Explained. Keep Your Steam Boiler in Top Shape!

Maintaining a steam boiler is essential for ensuring its optimal performance and longevity. At Oswald Supply, we understand the importance of havin...
OSCO Tube Plugs

Interim Fixes for a Leaky Tube: Oswald’s Tube Plugs to the Rescue!

Small Parts can make a Big Difference - During the heating season, you may need to bypass a leaky tube. There’s plenty of time to make repairs once...
100 YEARS STRONG - New York-based fourth-generation family owned distributor Oswald Supply celebrates centennial year.

100 YEARS STRONG - New York-based fourth-generation family owned distributor Oswald Supply celebrates centennial year.

There are many ways to define a great company. Founded in 1923, by Henry Charles Oswald, Oswald Supply is family owned and operated through four ge...