Extra Space Storage facility on 3939 Mexico Rd - St Peters, MO
4.9
    Call our Storage Experts
    Storage Experts Available
    Mon-Fri: 05:00am-12:00am
    Sat: 05:00am-12:00am
    Sun: 05:00am-12:00am
  • New Customer: 
  • Current Customer: (636) 339-5275

Today's Hours

VIEW ALL
Rental & Support:6:00 AM - 10:00 PM
Access:6:00 AM - 10:00 PM
Office:9:30 AM - 6:00 PM
VIEW ALL HOURS
24/7 access available when you upgrade
Nearby Locations
$23
$23
$18
Location marker pin
Extra Space Storage facility on 3939 Mexico Rd - St Peters, MO

St Peters Self Storage at 3939 Mexico Rd

4.9
Call our Storage Experts
Storage Experts Available
Mon-Fri: 05:00am-12:00am
Sat: 05:00am-12:00am
Sun: 05:00am-12:00am

Today's Hours

VIEW ALL
Rental & Support:6:00 AM - 10:00 PM
Access:6:00 AM - 10:00 PM
Office:9:30 AM - 6:00 PM
VIEW ALL HOURS
24/7 access available when you upgrade
Select a Unit Below

Units Available Nearby

5' x 5'

Available now at 1500 S 1st Capitol Dr, St Charles, MO 63303 starting at $23/mo

Available Nearby

10' x 10'

Available now at 1500 S 1st Capitol Dr, St Charles, MO 63303 starting at $68/mo

Available Nearby

20' x 10'

Available now at 1500 S 1st Capitol Dr, St Charles, MO 63303 starting at $115/mo

Available Nearby

10' x 20'

Available now at 1500 S 1st Capitol Dr, St Charles, MO 63303 starting at $143/mo

Available Nearby

12' x 40'

Available now at 10130 Mid Rivers Mall Dr, St Peters, MO 63376 starting at $158/mo

Available Nearby

Nearby Locations
$23
$23
$18
Location marker pin

Self Storage You Can Trust in St Peters

Extra Space Storage has the self storage options you need whether you're moving, opening a business, or experiencing a major life event. Our friendly staff works strive to provide you with solutions at our clean St Peters storage facility—which is backed by cutting-edge security features like surveillance cameras, a perimeter fence, and gated access.

Find Us Near Mexico Rd & Muegge Rd

Extra Space Storage is easy to find at 3939 Mexico Rd in St Peters! Locals will recognize our facility near the intersection of Muegge Rd & Mexico Rd, right across the street from Culver's. You can access our storage facility via the access road just past The Cube.

Storage Amenities Available in St Peters

Extra Space Storage is ready to serve your residential and commercial storage needs! We offer varied unit sizes, excellent features, and amazing customer service that make us your go-to St Peters self storage solution.

Unit Sizes

Our Mexico Rd storage facility offers a wide range of storage units that vary in size from 5x5 to 10x30, creating the perfect space for all our customers. Units offer features like indoor access, ground-level access, drive-up access, upper-level access, and more.

Drive-Up Access

Searching for a way to easily store heavy items? Extra Space Storage offers drive-up storage units in St Peters that let you pull your vehicle right up to your storage unit, allowing you to load and unload your items with ease!

Climate Control

Need to store temperature-sensitive items? Climate control can help protect your belongings from extreme temperature changes. These units typically maintain a storage environment between 55 and 80 degrees throughout the year.

Vehicle Storage

Extra Space Storage offers secure vehicle storage in St Peters. We provide indoor vehicle storage with our drive-up access units! Give Extra Space Storage a call today to get more information on our vehicle storage options.

Business Storage

On the lookout for commercial storage in St Peters? Extra Space Storage offers a variety of unit sizes combined with amenities like climate control that make storing with us an easy choice. Our units are able to accommodate a wide variety of business-related items like retail inventory, company cars, office supplies, and more. Get in touch with the Extra Space Storage team today to learn more about our business storage solutions.

Other Facility Features

  • Extended access hours are standard

  • Multiple entrance gates

  • Elevators for easy access to upper levels

  • Accommodates trucks larger than 20 feet

  • Wide-drive aisles to accommodate large moving trucks

  • Gate access on Sundays

  • Convenient freeway access

  • On-site office

  • ADA compliant

Cheap Self Storage in St Peters

If you need an affordable self storage solution in St Peters, Extra Space Storage at 3939 Mexico Rd has what you’re looking for! We offer cheap storage units with prices as low as $15, plus move-in deals like first month free and first month half-off at select locations when you reserve your unit online!

Company

Employees: 1-10

Payment Options: MasterCard / VISA / American Express / Discover / Check / Cash / Invoice

Established Date: 1977

Site Number: 3362

Phone Number:(636) 928-2220

Hours

Rental & Support

  • Monday: 6:00 AM - 10:00 PM
  • Tuesday: 6:00 AM - 10:00 PM
  • Wednesday: 6:00 AM - 10:00 PM
  • Thursday: 6:00 AM - 10:00 PM
  • Friday: 6:00 AM - 10:00 PM
  • Saturday: 6:00 AM - 10:00 PM
  • Sunday: 6:00 AM - 10:00 PM

Access

  • Monday:6:00 AM - 10:00 PM
  • Tuesday:6:00 AM - 10:00 PM
  • Wednesday:6:00 AM - 10:00 PM
  • Thursday:6:00 AM - 10:00 PM
  • Friday:6:00 AM - 10:00 PM
  • Saturday:6:00 AM - 10:00 PM
  • Sunday:6:00 AM - 10:00 PM

Office

  • Monday:9:30 AM - 6:00 PM
  • Tuesday:9:30 AM - 6:00 PM
  • Wednesday:9:30 AM - 6:00 PM
  • Thursday:9:30 AM - 6:00 PM
  • Friday:9:30 AM - 6:00 PM
  • Saturday:9:00 AM - 5:30 PM
  • Sunday:Closed

Directions

Intersections/Landmarks

Cave Springs Highway 70- Mexico and Muggee Rd

Directions from the North

Drive south on Harry S Truman Blvd. Continue south onto Cave Springs Rd. Continue south onto Muegge Rd. Our facility will be on your right, behind The Cube.

Directions from the South

Drive northwest on MO-364 W. Take Exit 13. Continue northwest onto Muegge Rd. Turn left after Culver's. Our storage facility will be straight ahead, behind The Cube.

Directions from the East

Drive west on MO-370 W. Take Exit 2. Turn left onto Lakeside Park Dr. Continue south onto Harry S Truman Blvd. Continue south onto Cave Springs Rd. Continue south onto Muegge Rd. Our facility will be on your right, behind The Cube.

Directions from the West

Drive east on I-70 E. Take Exit 225. Merge right onto Cave Springs Rd. Continue south onto Muegge Rd. Our facility will be on your right, behind The Cube.

Frequently Asked Questions at 3939 Mexico Rd

How many moving boxes do I need for a two-bedroom home?

You can typically fit a two-bedroom home into 10 small boxes, 6 medium boxes, and 3 large boxes. Use our moving boxes and packing supplies guide to plan your move.

What size storage space fits a motorcycle?

A 5x10 or larger indoor storage unit can fit most motorcycles. Or, book an outdoor parking space that is at least 15'. You can find motorcycle storage tips and more on our motorcycle storage guide.

What legal documents will I need to rent a storage unit?

All renters need proof of identity in the form of a driver's license or passport. Have extra documentation ready if you own a business, are a military service member or spouse, have a lien on your items, or are storing a vehicle.

Is there a minimum rental period for storage units?

Extra Space Storage rental agreements are paid on a month-to-month basis and can be cancelled at any time. This means you can rent a unit for just one month, or much longer, if needed.

Do I need an appointment to access my storage unit?

You can access your storage unit by yourself during our listed facility access hours with your personalized access code.

What is the relationship between Life Storage and Extra Space Storage?

Extra Space Storage bought Life Storage in 2023 making Life Storage part of the Extra Space Storage family. Combined, Extra Space Storage and Life Storage make up nearly 4,000 self storage locations across the United States.

*Promotional Terms & Conditions and Size Disclaimer

Reviews

January 17, 2026

Alexandra

Posted On Google

overall rating

I started renting a unit last fall and recently received a notice that my unit is now double the cost starting next month due to the market. I understand increases over time but being with this company less than 6 months and having my rate double is ridiculous. Extremely disappointed that I made the decision to go with Extra Space.

Response from Extra Space Storage (1/17/2026)

We are disappointed to hear about the significant rate increase. Please contact us at (636) 928-2220 to discuss your concerns.

January 14, 2026

Nathan

Posted On Google

overall rating

Jenny Pinkston was attentive, and quick with results. Thank you!

Response from Extra Space Storage (1/14/2026)

We are grateful for your feedback about Jenny's attentive service and quick results. Thank you for choosing Extra Space Storage!

January 13, 2026

K

Posted On Google

overall rating

Staff was friendly and explained things in a way I understand. Very helpful and prices are affordable.

Response from Extra Space Storage (1/13/2026)

We are delighted to hear our staff explained things clearly and provided helpful, affordable service!

January 13, 2026

Dale

Posted On Google

overall rating

Jenny was fantastic, super helpful, friendly, and made the whole process quick and easy. Great customer service all around!

Response from Extra Space Storage (1/13/2026)

We genuinely admire your feedback about Jenny! Thrilled she made your experience quick and easy with fantastic service.

January 10, 2026

Brenda

Posted On Google

overall rating

Very helpful & nice. Jenny was so amazing and I really recommend working with her

Response from Extra Space Storage (1/10/2026)

We are glad to hear Jenny provided amazing service! Your recommendation means everything to us.