To get to General Air Boulder, take Highway 36 west to Foothills Pkwy, then make a left to go west on Arapahoe Ave. Turn right onto 33rd St then right on Walnut St. Our store is located on the corner of 38th and Walnut St.



3750 Walnut St
Boulder, CO 80301


(303) 444-2138
Josh Brooks, Store Manager



Monday: 7:30am – 5:00pm
Tuesday: 7:30am – 5:00pm
Wednesday: 7:30am – 5:00pm
Thursday: 7:30am – 5:00pm
Friday: 7:30am – 5:00pm
Saturday: Closed
Sunday: Closed

General Air Aurora

General Air Denver

General Air Colorado Springs

General Air Littleton

General Air Boulder

General Air Pueblo

General Air Greeley

General Air Fort Collins


We’ve got 3 different financing programs available. You can start welding today for as little as $19.95 a month.

Also be sure to ask about our consignment machines and trade in/trade up program!

Free Add-Ons

When you buy a machine, we’ll give you a 20cf cylinder filled with argon or an argon mix. That’s enough gas to weld for about an hour.

All machine purchases come with a free half day weld class. Sign up here. Didn’t buy a machine? That’s ok, classes start at $65.

Try Before You Buy

Come to any of our locations an try out our machines before you purchase. Our trained associates will set you up in a demo room with the welder of your choice so that you know exactly what you are buying.

Virtual Tour

Explore our showroom and take a look at our extensive product selection on a virtual stroll through the Boulder store!


With 8 front range locations and hundreds of gases in stock, we likely have the product you need and the means to get it to you.