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We can help you determine your medical, welding & industrial gas needs

Who We Are

Whether you need medical gas, welding gas and industrial gas, or cylinder rentals and refills, you can rely on Wagner Welding Supply and Metro Medical Oxygen in Longmont to provide what you need when you need it.


We've been in business for over 80 years. That's why we truly understand how important reliable delivery and industry knowledge are to meet your needs. Our dedicated team at Wagner Welding and Metro Medical Oxygen offers the expertise required to pinpoint and initiate effective solutions for your business. If you're seeking a medical or industrial gas partner you can count on for the long haul, our services are backed by:


Industry knowledge and expertise that will save you time and money

A large selection of high-quality medical and industrial gases

On-time, convenient delivery options in and around Denver, Boulder, Longmont, Loveland, and Fort Collins.


Check out our complete gas selection »

Medical Gases

Medical Gases

High-purity gases for your medical facility.
Reliable gas & reliable service for healthcare providers.


Welding Gases

Welding Gases

High-grade gases that get the job done right.
The quality welders can trust.


Industrial Gases

Industrial Gases

High-purity gases for safety and efficiency.
Convenient delivery to your business.


Industrial Gases

Cylinder Size Chart

Find the cylinder size that fits your needs.
Rent or refill your cylinders with quality gas.


About Us

For 80+ years, Wagner has delivered quality products and high-purity gases to our Colorado customers. Reliable service and a quality you can trust.

Get In Touch

Wagner Welding Supply
Metro Medical Oxygen
10 Gay Street
Longmont, Colorado 80501

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Monday-Friday: 8am-5pm
Saturday: 9am-1pm