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The janitorial industry's best source for paper towels, toilet tissue, cleaning chemicals, cleaning equipment and new innovative technology.

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100% of our incoming phone calls are answered by a local customer service person.

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All of our salespeople and customer service representatives are certified in 27 custodial training programs and are able to use this knowledge to help you.

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The GW Brand of cleaning products have been made in the Quad Cities since 1945. They are time-tested and high quality.

Welcome to Great Western Supply Co.

Great Western Supply Co. is the leading provider of janitorial supplies and equipment in the Quad Cities & surrounding areas. Our regional delivery & equipment repair fleet, knowledgeable sales team, same-day shipping option and broad expertise across all aspects of the cleaning industry guarantee you'll never be without the items or technical guidance you need to keep your buildings safe and clean. With three fully stocked warehouses across Eastern Iowa and two walk-in locations, we invite you to connect with our team to explore how we can help you save time and money.

Two easy ways to shop online:

Shop with an account: If you are a frequent shopper with an existing customer number, we encourage you to request an account - an online account provides a more streamlined experience by giving you access to tools like custom order pads, special permission settings for multiple users, order history and more. If you are already a customer with a Great Western Supply account number - click here to request your account.
Shop without an account: 
Fill your cart and checkout using our secure online system - you may still request an account at any time with us. 

Our company values are based on the Christian principles of love, respect, honesty, and hard work. We treat our customers, coworkers, and vendors as we would like to be treated. We love and respect our customers and will do whatever it takes to make them happy while using these guiding principles.

Hard Work

Full effort and productivity


To honor and place great value


Truthfulness and Integrity


Choice of commitment, sacrifice, and true caring

News & Updates


How a color-coded microfiber system can help you clean more efficiently.

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Save time and money by using the right floor pad!

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