For nearly 70 years, Great Lakes Copper has earned the trust of distributors, OEMs, and contractors across Canada. This trust is built on Tubemanship™: our core commitment to expertise, rigorous standards, and unmatched consistency in every copper tube we produce. At GLC, quality is never a question.
OUR PROCESS
A Process Built on Precision.
From raw copper to finished tube, every process at GLC is engineered for consistency, quality, and long-term performance. Tubemanship™ isn’t just a trademark. It’s our culture of craftsmanship, precision, and pride. Every foot of copper tube reflects the knowledge and skill that comes from decades of striving for manufacturing excellence.
Copper Sourcing
& Chemistry Control
We start with a mix of raw and recycled copper, alloyed to precise C122 standards. Our lab tests 14 additional elements to ensure purity beyond the requirements.
Press, Pilger & Drawing
Our press and pilger process creates uniform walls and the tightest eccentricity control in North America, minimizing waste and improving installation.
Testing & Verification
Every tube is Eddy Current Tested, (ECT) in real time to detect micro-defects. Laser measurement confirms 0.0005″ precision for OD and precision fit.
SHIPPING AND LEAD TIMES
Reliable Service Across Canada – from Sea to Sea.
Strategically based in London, Ontario near the GTA, Great Lakes Copper ships throughout Canada. Our robust logistics network ensures dependable delivery whether you’re out East or West, on the Southern Border or way up North to keep your projects on schedule.

QUALITY CONTROL
Third-Party Verified.
Performance You Can Count On.
Quality isn’t an afterthought, it’s engineered into every step of our process. From alloy composition to final markings, we deliver copper tubes that consistently outperform expectations.
Certifications & Audits
- Intertek, UL, NSF, and CSA certifications
- Annual third-party audits to ASTM and ISO 9001
- NSF 61 compliance for drinking water safety
Dimensional Precision
- Laser-verified dimensions accurate to 0.001 inch
- Wall thickness manufactured to spec, no shortcuts or skimping on copper
- Eccentricity control unmatched in North America
Chemistry
- C122 alloy refined and tested beyond requirements, with 14 additional elements measured for purity
Temper
- Our annealing capabilities allow us to consistently achieve 060 soft temper, 055 half hard, and 050 hard tempers—delivering the exact performance customers require, every time
Cleanliness
- 0.0035 grams per square foot internal residue—verified with a four-hour solvent evaporation test
Traceability
- Permanent incise markings, Warnok Hersey identifiers, and NSF/UL stamps for complete traceability
Verified Control
- Every inch Eddy Current Tested, (ECT) to detect internal or surface flaws
- Defect rate of just 0.001 per million and operating at true Six Sigma levels with 99.99966% accuracy
Our team is ready to
support your business.
Reach out to request a quote or learn how GLC delivers copper tube solutions across Canada and the U.S.
OUR CAPABILITIES
Dimensions, Customizations, and Expertise to Match Your Needs.
- GLC manufactures copper tubes in diameters from 0.250″ to 4.335″, in straight lengths up to 40 feet or coils stretching thousands of feet.
- We offer custom packing, labeling, and certifications to meet the most exacting project requirements.
- Whether you’re serving municipal water systems, HVAC contractors, or OEMs, you’ll find a solution that fits.
- From ready-to-ship standard sizes to complex custom builds, we deliver copper products tailored to every requirement.
TESTIMONIALS
See Why Professionals Choose Great Lakes Copper.
Interested in learning how our copper products and capabilities can support your needs? Reach out now.
Connect with us to learn more about our work, our values, and the ways we can build a stronger tomorrow together.