4.6
    Call our Storage Experts
    Storage Experts Available
    Mon-Fri: 06:00am-01:00am
    Sat: 06:00am-01:00am
    Sun: 06:00am-01:00am
  • New Customer: 
  • Current Customer: (781) 516-8640

Today's Hours

Rental & Support:6:00 AM - 10:00 PM
Access:6:00 AM - 10:00 PM
Office:9:30 AM - 6:00 PM
24/7 Access
With upgrade
Nearby Locations
4.6

Waltham Self Storage at 37 River St

Call our Storage Experts
Storage Experts Available
Mon-Fri: 06:00am-01:00am
Sat: 06:00am-01:00am
Sun: 06:00am-01:00am

Today's Hours

Rental & Support:6:00 AM - 10:00 PM
Access:6:00 AM - 10:00 PM
Office:9:30 AM - 6:00 PM
24/7 Access
With upgrade

Select a Unit Below

One-Time Admin Charge
$19.99
You will be charged a one-time lock charge. Your lock fee may be refundable if you bring your own lock and it is approved for compatibility by your Store Manager. This fee does not apply to digital-access units.
$29
This one-time admin charge covers lease processing and your account setup.
Small
5' x 7'
  • Indoor
  • Stair Access
IN STORE
$86
WEB RATE
$67

ACT FAST: 1 LEFT!

Small
5' x 10'
  • 1st Floor Access
  • Heated
  • Indoor
IN STORE
$241
WEB RATE
$189

ACT FAST: 1 LEFT!

Small
5' x 15'
  • 1st Floor Access
  • Heated
  • Indoor
IN STORE
$327
WEB RATE
$256

ACT FAST: 1 LEFT!

Medium
10' x 10'
  • Heated
  • Indoor
  • Stair Access
IN STORE
$170
WEB RATE
$127

ACT FAST: 1 LEFT!

Large
10' x 20'
  • Indoor
  • Stair Access
IN STORE
$343
WEB RATE
$241

ACT FAST: 1 LEFT!

Large
15' x 16'
  • Indoor
  • Stair Access
IN STORE
$412
WEB RATE
$304

ACT FAST: 1 LEFT!

Units Available Nearby

5' x 5'

Available now at 128 Bridge St, Newton, MA 02458 starting at $99/mo

Available Nearby

8' x 10'

Available now at 190 Willow St, Waltham, MA 02453 starting at $228/mo

Available Nearby

6' x 16'

Available now at 128 Bridge St, Newton, MA 02458 starting at $287/mo

Available Nearby

13' x 15'

Available now at 128 Bridge St, Newton, MA 02458 starting at $499/mo

Available Nearby

Nearby Locations

Convenient Self Storage Near You in Waltham

Located at the intersection of Seyon St and River St, Extra Space Storage serves residents of Waltham, Watertown, Newton, Brighton, Belmont, within 1 mile of Nonantum, and within 5 miles of Watertown. Locals will recognize our facility near the River City Plaza shopping district.

Available Storage Unit Sizes

Extra Space Storage's Waltham storage facility offers units in sizes ranging from 5x5 to 20x25. Unit features at our 37 River St self storage facility include indoor access, first-floor access, elevator access, drive-up access, and more for your convenience.

Drive-Up Storage Units

We don't think self storage should be complicated. That's why we offer drive-up access storage units! Enjoy convenient access to your storage unit and pull your car up to your drive-up storage to load and unload your belongings with ease.

Climate-Controlled Storage & Heated Storage

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.

Exceptional Security Features

Our River St storage facility is equipped with advanced security features like video surveillance and electronic gate access. We care about the valued belongings of our customers.

Other Amenities & Services

  • Extended access hours are standard with 24/7 access available - ask site manager for details

  • Sturdy moving carts available for heavy, bulky items

  • Convenient loading dock

  • Elevators for easy access to upper levels

  • Gate access on Sundays

  • Convenient freeway access

  • Deliveries accepted

  • On-site office

Cheap Self Storage in Waltham

If you need an affordable self storage solution in Waltham, Extra Space Storage on River St has what you’re looking for! We offer cheap storage units with prices as low as $83 at this location. At select locations, you can also take advantage of great move-in deals like first month free and first month half-off when you reserve storage with us online!

The Self Storage Partner You Can Trust

At Extra Space Storage, our helpful staff is always happy to assist you in finding the right storage solution for your needs. In addition to providing a wide variety of unit sizes and amenities in a well-maintained storage facility, we also offer affordable rates and competitive move-in deals. Contact us today to reserve a storage unit in Waltham!

Company

Employees: 1-10

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

Established Date: 1977

Site Number: 2007

Phone Number:(781) 899-7020

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

Seyon St and River St

Directions from the North

Drive south on MA-60. Turn left onto Trapelo Rd. Turn right onto Lexington St. Turn right onto Belmont St. Take an immediate left and continue driving south onto Lexington St. Turn right onto Main St. Turn left onto Gore St. Continue south onto Seyon St. Our facility will be on your left.

Directions from the South

Drive north on Walnut St. Pass Washington St and continue north. Turn left onto Crafts St. Turn right onto North St. Continue north onto Farwell St. Our facility will be on your right, immediately after River St.

Directions from the East

Drive west on Pleasant St. Pass Bridge St and continue west. Continue west onto River St. Our facility will be on your right.

Directions from the West

Drive east on River St. Turn left onto Seyon St. Our facility will be on your immediate right.

Frequently Asked Questions at 37 River St

Do I need insurance to rent a storage unit on River St?

When renting a storage unit in Waltham from Extra Space Storage, customers are required to have proof of insurance. For most customers, your storage unit is often covered by your homeowners insurance or renters insurance, but you can purchase self storage insurance from Extra Space Storage. The benefit of purchasing self storage insurance through Extra Space Storage in Waltham is that our options may provide more coverage for your items and possibly help you avoid increases in your premiums over time.

Are packages accepted at storage units in Waltham, MA?

Extra Space Storage in Waltham will gladly accept deliveries, should our commercial storage customers need a secure drop-off location! Just check with the facility manager to determine how long a package will need to be held before you come and pick it up.

What type of lock do I need for a storage unit?

At Extra Space Storage, we require all customers at our 37 River St location to have a secure lock for their storage unit. You can even purchase locks at our storage facility. Contact us today to learn more about which locks we require for our storage units!

How far in advance do I need to reserve a storage unit?

Extra Space Storage at 37 River St allows customers to reserve self storage units up to 14 days in advance. There's no minimum requirement!

How secure are storage units in Waltham, MA?

Our Waltham storage facilities are backed by advanced security features, such as video surveillance, security access to your floor only, individually-alarmed storage units, and electronic gate access!

*Promotional Terms & Conditions and Size Disclaimer

Reviews

May 31, 2026

Nat

Posted On Google

overall rating

This place is beyond unacceptable. I’m honestly shocked it’s allowed to operate. Mold is everywhere, the stench is unbearable, and it feels downright dangerous—like stepping into a horror scene. The polished photos are a lie. This place should be condemned. It’s unsafe and terrifying, and frankly, it’s appalling that it’s still running…

January 22, 2026

elias

Posted On Google

overall rating

Great storage facility

Response from Extra Space Storage (1/23/2026)

We are grateful for your positive feedback about our storage facility, Elias!

January 22, 2026

elias

Posted On Google

overall rating

Great storage facility

Response from Extra Space Storage (1/23/2026)

We are grateful for your positive feedback about our storage facility, Elias!

January 16, 2026

C

Posted On Google

overall rating

I had the worst experience with the Extra Space Storage at 37 River St Waltham MA .I went here to rent a unit for a week while I waited for my new apartment to be renovated I spoke with the guy and told him I would like something on the first floor because I knew it was going to be a fast in and out as my new apartment was a week away from being ready .The guy then informed me that they only did monthly rentals and also didn't have any open first floor units "but don't worry We have elevators" so I said ok so they rented me a unit on the 3rd floor saying I would have access to the elevators . I rented the unit came back the next day to move the stuff in and the Elevators now had a out of order sign on them I went in the office to ask the guy when will they be fixed and he said he didn't know but I could "use the stairs ,the elevator is a luxury" ??I then replied telling him the only reason I agreed to rent that unit was because of the elevator that he sold me on he then replied with the same "use the stairs ,the elevator is a luxury". Went back to the office and was told this is a walk up unit.

Response from Extra Space Storage (1/16/2026)

Your feedback is important to us. We understand your frustration and would like to address your concerns. Please feel free to reach out to us at (781) 899-7020.

November 17, 2025

Michael

Posted On Google

overall rating

Terrible place 3 floors no elevator so you will carry everything you bring up 2 flights of stairs after 3 months they raised my rent 100$ which is inappropriate if you wanna Terrible experience then here's your place , the inside is dilapidated if I could give zero stars i would , worst experience ever. If you chose this place you're not very smart.

Response from Extra Space Storage (8/21/2025)

We are overjoyed to hear you're happy with our kind staff and easy setup process, Michael! Thanks for choosing Extra Space Storage.

*savings reflected in rates.