Bronx, NY 10474
For over 100 years, Oswald Supply has proudly manufactured and assembled key products right here in the U.S.A. This longstanding commitment to American craftsmanship ensures contractors receive consistent, reliable boiler supplies and industrial parts without the delays, uncertainty, or guesswork.
With a focus on quality control, domestic fulfillment, and local economic impact, Oswald takes care of the supply side, so the work on-site never slows down.
Built Here. Trusted Everywhere.
Oswald Supply proudly manufactures and assembles many of its most in-demand parts in the United States. Whether it's boiler gaskets, heating system components, or commercial chute doors, Oswald ensures each item is built to spec, quickly and accurately.
Domestic production allows for tighter quality oversight, shorter lead times, and dependable results. Contractors shopping online know that Oswald doesn’t just sell parts—it supports real work, on real job sites, with American-made solutions.
A Legacy of Strength – Over 100 Years Strong
Founded in 1923, Oswald Supply has built a reputation for quality, dependability, and deep product knowledge. From discontinued boiler parts to commercial-grade heating accessories, the company has supported generations of contractors across the country.
That legacy continues today with expanded capabilities, including a larger Bronx warehouse that enables faster fulfillment and deeper inventory, strengthening local operations and nationwide reliability.
Read more about Oswald’s history: About Us »
Supply Chain Certainty in Uncertain Times
When global supply chains bring delays and disruption, Oswald delivers. Products are built or assembled in-house, stocked on-site, and shipped directly from the Bronx facility, without reliance on far-flung sourcing or third-party delays.
Whether it’s a last-minute gasket or a legacy boiler part no one else can source, Oswald has it on the shelf and ready to ship, with expert support to match.
Key Products. American Built. Oswald Supported.
Oswald Supply stocks many core parts that keep commercial and residential buildings running safely and efficiently. These include boilers, gaskets, handhole/manhole plates, cast iron radiators, water heaters, boiler sections, trash chute doors and parts, burner accessories, as well as hard-to-find discontinued items that other suppliers can’t source. Every product reflects the company's commitment to precision, fast availability, and American quality. Explore more products here.
Trust in Quality and Consistency
Oswald’s commitment to domestic production means tighter tolerances, fewer delays, and fewer callbacks. From gaskets that hold under pressure to parts that fit the first time, every order reflects generations of engineering and hands-on experience.
This quality doesn’t happen by accident—it’s the result of skilled American labor and continuous investment in the parts that keep commercial systems running.
When Others Falter, Oswald Delivers
As global supply chains remain fragile and material prices fluctuate, Oswald’s U.S.-based operations continue to meet demand. No delays. No guesswork. Just the right part, at the right time.
This reliability has made Oswald the go-to partner for contractors who don’t have time to wait or guess. The difference? Real humans are on the line. Real stock on the shelf. Real solutions from a family-owned team that’s been in this game for generations.
Support American Manufacturing. Shop Oswald Supply.
From Bronx-based warehousing to nationwide job sites, Oswald Supply is proud to support contractors with parts that are in stock, ready to ship, and backed by responsive, knowledgeable service.
Contact Oswald Supply today and choose American-made dependability.