Welcome to CSI

Contractors Supply, Inc has been serving Gillette Wyoming and the surrounding area since 1975. Deeply rooted in our community, we have been here thru all the ups and downs always ready to go the extra mile for customers.

With over 150 YEARS of combined experience, we have the people and talent to give you the options and expertise to help you get any job done correctly be it big or small. Our people keep up on current and new products and continually attend training to keep up with the latest trends and innovations.

You can trust Contractors Supply Inc to help you get the job done right the first time!

About Us

CSI Store 2
CSI Store 1

Quality products and GREAT customer service!

With ongoing learning and training, Contractors Supply keeps ahead of the pack in all the latest innovations and products to help get the job done RIGHT THE FIRST TIME! Sign up today to get notified of upcoming events and training! (Pssst... You usually get a free lunch out the deal!)
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"All The Little Things"

It happens to us all. You start the project and have to make multiple trips back to the store for that little thing you didn't think of. We are here to help you make sure you have everything you need to "Get er' Done"!

We WANT your business!

And we are willing and eager to EARN it! Call us at 1-307-682-5153 or contact us and we'll do just that! Contact Us!

Sign Up TODAY!

There is always something going on at Contractors Supply. Don't miss a thing from sales, promotions, events, training and much much more! Get "In the Know" TODAY! Click HERE to get signed up!
Contact Us!

You can't go wrong!

Ready for all your Plumbing, Concrete, Industrial Supplies and Safety Items, Contractors Supply Inc is loaded with products, supplies, inventory and knowledge that will help your projects both big a small a breeze!

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Products and Services That you NEED!

Check out all of the offerings we have to help you get the job done right!

Plumbing Supplies

Contractors Supply carries the supplies and tools that contractors and individuals need to complete their residential or commercial plumbing projects including fittings, pipe, tubs, showers, hot water heaters and much more. Stop in today and talk to one of our knowledgeable and friendly staff about your project, big or small.

Concrete Supplies

Concrete supplies? You betcha! Concrete tools and supplies for the DIY projects or large commercials jobs. Complete line including wall forms, column forms, backer rod, concrete sealers, ties and forming accessories, epoxies, grouts, sakrete, masonry bits and much more. We've got it we can get it! Come see us today with all your concrete needs.

Industrial Supplies

Contractors Supply carries a complete line of industrial supplies including hand tools, work lights, extension cords, spray paint, ladders, measuring tools, tool boxes, jobsite boxes, rubber boots, rain gear and much, much more. Complete line of safety supplies as well. Stop in today and let's get you all tooled up!

Safety Supplies

Safety... It's not just an afterthought or something to be taken lightly and Contractors Supply understands and supports this idea. We got you covered with hard harts, safety vests, safety glasses, gloves, fall protection, hearing protection and much more. Come on in and get "geared up for safety" TODAY! We want you to get home safely tonight.

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Contractors Supply can help you with your plumbing connections and layout as well as complete sprinkler designs and zone configurations. We also do bidding on all projects from a small home renovation to large scale industrial bids. We have the knowledge and experience to make sure you are getting the most and accurate bid available.


We carry all the supplies and products to complete your home or commercial fixture needs or projects. Everything from bath and kitchen faucets, sinks, disposals, fiberglass tubs and showers to toilets and flush valves. We also carry a complete line of hot water heaters. Stop in and see what we can do for you today!

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Pipe Products

We carry PVC pipe in sch 40, 80, CL200, slotted solid well casing, drop pipe in sch 80 120, 3034 swr pipe, SDR35 gasketed swr pipe. Steel pipe in sch 40 20 blk galvanized, threaded or plain end. Poly pipe in 100, 200 250# IPS. SDR11 fusion poly pipe in 500ft rolls L copper, refer coils, ACR copper pipe, copper pipe in MK soft copper.

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We put on many schools and training demonstrations several times throughout the year. We don't just sell you a product and send you on your way. We make sure you have the knowledge and training to use it effectively. Be sure to signup for notifications about events and don't miss a thing! (And you usually get a free lunch out of the deal!)

The numbers don't lie!

150 Years

Combined Experience


Product Lines


Cups of Coffee!


Dedicated Employees

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