WHO WE ARE
Beyond our products, we are a company that has been by your side for over 81 years.
Douglas Barwick is Canada’s only continuous-run manufacturer of welded industrial stainless-steel pipe and fittings accessories. All pipe, fittings, and spool assemblies are fabricated in our Brockville, ON facility for projects across North America and worldwide. Built with a commitment to quality first, our piping products earn the trust of contractors and engineers every day.
Established in 1945, Douglas Barwick brings decades of specialized manufacturing expertise to the industrial stainless-steel market, building on a deep legacy of Canadian metal fabrication.
We stand at the forefront of quality with deep expertise in the production and fabrication of stainless steel and performance alloys. Our commitment remains steadfast: delivering high-integrity piping products and shop-fabricated spools on schedule. Today, Douglas Barwick’s piping systems operate reliably across critical infrastructure worldwide.
Our manufacturing plant is located in beautiful Brockville, ON and features 100,000 sq. ft. of shop space, ensuring we are equipped to handle projects of any scale.
The Douglas Barwick team is ready to support your project with stainless steel pipe, fittings, and custom spooling. From our manufacturing facility in Brockville, ON, we deliver quickly and efficiently to job sites across Canada and through our distribution partners in the United States.

WHAT WE DO
Douglas Barwick specializes in welded stainless-steel pipe, fittings and accessories.
We produce welded stainless-steel pipe, butt-weld fittings, accessories, and custom spool assemblies for diverse application—ranging from food processing and liquid cooling to heavy industrial process piping, mining, and pulp and paper.
We manufacture pipe ranging in diameter from ¾-inch NPS up to 96 inches, with wall thicknesses spanning light-wall Schedule 10S and heavy-wall spools (14 gauge / 0.083″ to 0.500″). While 304L and 316L stainless steel are our primary grades, our metallurgical expertise extends to performance alloys including Duplex, Super Duplex, Hastelloy®, AL-6XN®, and Inconel® 625.
Welded stainless steel offers distinct advantages for modern process engineering. Produced via a continuous-run forming and longitudinal welding, welded stainless pipe delivers faster lead times, tighter dimensional tolerances, improved wall concentricity, longer continuous lengths, and cost efficiencies – especially across light-wall and large-diameter applications.

OUR VALUES
We are a team that is guided by key core values of: Reliability + Quality + Responsiveness.
These key values have been a foundation for our business since our inception and continue to guide us today.
RELIABILITY
Building safe, high-integrity piping systems.
Our stainless-steel piping and spool assemblies are deployed across demanding industrial environments, where meeting and exceeding rigorous safety standards is paramount. Strict compliance and total system reliability are essential to protect the personnel working alongside our products and to ensure long-term operational integrity.
Regardless of your industry or project, we build safe, quality-focused piping systems and shop-fabricated spools backed by rigorous testing and quality assurance standards. This guarantees long-term reliability and consistent performance.
For us at Douglas Barwick, this is the single most important part of what we do and what we offer.
QUALITY
Providing you with the quality you need for your piping systems.
Established in 1945, Douglas Barwick delivers trusted piping solutions to customers across North America. Today, we manufacture welded stainless-steel pipe, fittings, and custom spool assemblies built to exact job specifications—with the quality to match.
Quality starts with carefully selecting our material suppliers, ensuring they uphold the same strict quality standards as we do. Our team, our knowledge and our commitment to everything we produce, solidifies the quality of our products. Our history and continued success is the testament and result of our standards.
If you need premium, specialized alloy construction and complex manufacturing, that’s what we’ll make for you. But if your system can handle an economical solution with mitered elbows and standard-grade stainless steel? We’ll manufacture the best low-cost piping system you’ve ever seen.
Our goal is to provide you with the quality you need for your system without misleading advice or unnecessary upselling.
RESPONSIVENESS
Driving projects forward through responsive communication and on-time execution.
Responsiveness happens at every level of our business. It starts with building strong relationships, understanding your project needs, and providing sound technical advice. Dedicated project managers support you every step of the way—keeping lines of communication open and providing clear progress reporting. Being by your side when you need us is paramount to our commitment.
Responsiveness extends to every aspect of our operations, from detailing to manufacturing. Turning around your requests quickly is something we take seriously—supported by rigorous shop training, proper staffing, and proactive equipment maintenance. Our goal is simple: operating at the speed of your project.
OUR WORK
See the culmination of our skills and experience in our past work.
Interested in seeing examples of our finished products, including pipe, fittings and accessories. Check out our Product Showcase.
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View Specialty FittingsSpecialty Fittings