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Featured promotions at T-Mobile Jefferson Street & Caterpillar

Featured categories at T-Mobile Jefferson Street & Caterpillar

T-Mobile Network Performance

Data provided by Umlaut From April-2025 to September-2025   See coverage map
5G network score
The higher your score, the more likely you can connect to a faster, more stable network.
92
/100
AT&T
90
/100
Verizon
88
/100
5G coverage availability
More availability means having access to 5G speeds more often.
94 %
92 %
AT&T
70 %
Verizon
5G download speed
Higher speed means quicker downloads and smoother video calling.
100
Mbps
AT&T
100
Mbps
Verizon
82
Mbps
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for 30 days.

Test-drive our award-winning network and some of our favorite benefits for 30 days-no commitment or credit card required. We won't even tell your other carrier.

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Qualifying non-T-Mobile network user & compatible, unlocked device required. 1 trial user. See 5G device, coverage, & trial details at T-Mobile.com.

Featured reviews at T-Mobile Jefferson Street & Caterpillar

Raymond Ramirez
Dec. 14, 2025, 4:48 p.m.
This T-Mobile store has the nicest employees. I ran in for an on-line order and they took care of me quickly. Very professional people. 😃👍 View on Google
Vince Shelby
Dec. 6, 2025, 12:27 a.m.
For the company T-Mobile I hope this gets to someone of importance. I’ve had problems with my service since I’ve had my business account and every time I have phoned to 611. I haven’t received any good customer service until I went to the corporate store. Speaking to someone overseas is not helpful specially when there’s a language barrier. You would think T-Mobile as big as they are would have better customer service representatives for business owners that they can talk to instead of going to a corporate store to get the help that is needed. I like to give a shout out to Madison in the corporate store in Joliet on Jefferson Street. She is truly dedicated to helping business owners and customers get the satisfaction that the phone operators cannot do. Today I asked for a supervisor to call me. The representative said it will be an hour wait no supervisor called instead again Madison from the corporate store on Jefferson Street in Joliet Illinois has to help me because T-Mobile’s customer service representatives on 611 doesn’t appreciate the customers. It is very irritating to have a phone with a service provider that gives you a number to contact and you can’t receive the help you need. View on Google
Alaina Lindquist
Dec. 4, 2025, 11:28 p.m.
I love t mobile Bobby was the best! View on Google
Anita Poe
Dec. 4, 2025, 7 p.m.
I Love him he took care of all my concerns give him a raise 🙌 View on Google

Additional information about T-Mobile Jefferson Street & Caterpillar

IDs Accepted
  • US State issued drivers license
  • US Passport or Permanent Resident Card (Green Card)
  • State ID
  • International student visa with passport (Visa types: M, J, F)
  • Matricula Consular card (Mexico and most Latin American countries, check with your store mobile expert)
  • Employment Authorization Document (EAD)
  • US Military ID
T-Mobile Jefferson Street & Caterpillar - 2520 W Jefferson Street
 Exterior photo of T-Mobile Store at Jefferson Street & Caterpillar, Joliet, IL
 Interior photo of T-Mobile Store at Jefferson Street & Caterpillar, Joliet, IL
 Interior photo of T-Mobile Store at Jefferson Street & Caterpillar, Joliet, IL
 Interior photo of T-Mobile Store at Jefferson Street & Caterpillar, Joliet, IL
 Interior photo of T-Mobile Store at Jefferson Street & Caterpillar, Joliet, IL

T-Mobile Jefferson Street & Caterpillar
2520 W Jefferson Street
(815) 744-8938

Joliet’s 5G leader — with membership perks and coverage that go beyond wireless. T-Mobile powers America’s largest, fastest, and now most advanced 5G network — backed by satellite coverage that keeps you connected even off the grid. At T-Mobile Jefferson Street & Caterpillar, explore the latest devices from Apple, Samsung, and Google, with great deals and flexible ways to pay. Whether you’re upgrading, switching, or just looking, our experts are here to help.

Call us at (815) 744-8938 or stop by today.

What You’ll Find In-Store:

  • Activate Wireless or Prepaid Service
  • Activate Home Internet Services
  • Purchase Phones, Tablets, and Accessories in Store
  • Upgrade or Trade-In Your Phone
  • Small Business Plans And Services
  • Connected Products for Home, Family, and Automobile
  • Buy Online, Pick-Up In Store

Locations near T-Mobile Jefferson Street & Caterpillar

T-Mobile Store
T-Mobile at Sam's Club
1.0 miles away
5.0
T-Mobile Store
T-Mobile Weber & Airport
6.3 miles away
5.0
T-Mobile Store
T-Mobile US 6 & Pheasant Lane
9.4 miles away

Got Questions about T-Mobile Stores?

Yes. Check out our special offers for new phones and great deals on our mobile phone plans.

We offer the latest iPhones. Check our store inventory and either buy in-store or online today.

Yes. Trade in your phone at a T-Mobile store and receive instant appraisal and credit. See our trade-in guide for details.

Yes, visit our T-Mobile store at T-Mobile Jefferson Street & Caterpillar for assistance with setting up your device.

Browse devices and plans online, contact us for assistance, or visit this T-Mobile location at T-Mobile Jefferson Street & Caterpillar for personalized help.

Yes. Some plans include subscriptions to services like Netflix or Apple TV+. Check our plans for available perks and add-ons.

Use our Store Locator to find the nearest T-Mobile store.

T-Mobile stores offer a wide range of accessories compatible with your device, including cases, chargers, and headphones.

No, you can pay your bill online through our website or the T-Mobile app.

Only compatible devices can use T-Mobile's 5G network. All new phones are 5G ready.

The T-Life app provides a simplified experience for customers by offering everything in one convenient location. In the T-Life app, T-Mobile and Metro by T-Mobile customers can access the same great perks and exclusive deals you know and love from T-Mobile Tuesdays, VIP benefits, and more! Plus, you can easily manage most aspects of your T-Mobile account directly from the T-Life app, with new features being added regularly.
Yes, the T-Life app can be found in your Google Play Store or Apple iOS App Store