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Extra Space Storage - 20671 Valley Blvd, Walnut, CA 91789

Self Storage, Car Storage, RV Storage 25 - 400 Sq. Ft.
4.9/5 - 773 Reviews
Location:
20671 Valley Blvd, Walnut, CA 91789
24/7 ACCESS
All units
Small
Medium
Large
Parking
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Units Availability
Small Storage Unit
10x5
Self Storage
50 Sq. Ft.
$138/mo
Small Storage Unit
8x10
Parking
80 Sq. Ft.
Car Storage
Parking
$173/mo
Small Storage Unit
7x10
Self Storage
70 Sq. Ft.
$191/mo
Small Storage Unit
5x15
Self Storage
75 Sq. Ft.
$188 - $204/mo
Small Storage Unit
5x10
Self Storage
50 Sq. Ft.
$130 - $138/mo
Small Storage Unit
5x5
Self Storage
25 Sq. Ft.
$75/mo
Medium Storage Unit
10x15
Self Storage
150 Sq. Ft.
$386/mo
Medium Storage Unit
10x15
Parking
150 Sq. Ft.
Car Storage
Parking
$207 - $241/mo
Medium Storage Unit
10x10
Self Storage
100 Sq. Ft.
$277/mo
Medium Storage Unit
5x20
Self Storage
100 Sq. Ft.
$277/mo
Large Storage Unit
20x20
Parking
400 Sq. Ft.
Drive-up Access
Parking
RV Storage
$635/mo
Large Storage Unit
20x20
Self Storage
400 Sq. Ft.
$635/mo
Large Storage Unit
10x30
Self Storage
300 Sq. Ft.
$509/mo
Large Storage Unit
10x25
Parking
250 Sq. Ft.
Parking
RV Storage
$300 - $413/mo
Large Storage Unit
10x20
Parking
200 Sq. Ft.
Car Storage
Parking
$249 - $386/mo

Amenities

  • Indoor
  • 24 hour access
  • Drive-Up Access
  • Retail Available
  • Onsite Manager
  • Contactless Renting
  • Security Camera
  • Gate
  • Parking
  • Credit Cards Accepted
  • Online Payment
  • RV Storage

What customers are saying

4.9/5 - 773 Reviews

Read some helpful reviews of Extra Space Storage at 20671 Valley Blvd, shared by real renters with genuine experiences and honest opinions.

Shevy B. - 6 March 2026
Manny R. - 1 March 2026
Had a great experience at this storage facility! Erica R. was extremely friendly and professional. She walked us through the sign-up process, showed us the unit, and clearly explained everything we needed to know about access, billing, and security. Everything went smoothly and she made the whole process easy and stress-free. Excellent customer service—highly recommend! ... Read more
J B. - 15 October 2025
Dennis V. - 19 September 2025
Very easy experience leasing a unit here. First booked everything online then finalized everything in the office and was viewing my new unit all in the same day. Service was helpful and friendly, definitely earned my business. ... Read more
Paul P. - 7 September 2025
Erica did an amazing job helping me and my family find the perfect storage unit. After a terrible experience at another company she went above and beyond to secure the perfect space for us all while meeting a deadline we were up against. Words can’t describe how grateful and thankful I am for her saving the not only the day for us but honestly the year. I recommend this place to everyone because of our experience with Erica. Thank you again, Erica for everything you have done for us ... Read more
Shah H. - 20 August 2025
So far so good. Storage space conveniently located near my pad. Customer service is friendly and help you out along the way. Most of my interaction was online or by phone with ease. Minimal bugs but dust gets into space but normal I supposed. ... Read more
Monica G. - 29 July 2025
Juan G. - 27 July 2025
Isabelle C. - 17 July 2025
Erica was super helpful and was able to answer all my questions about getting a new storage unit. She was able to tell us the promotions and lease terms in a friendly and informative manner. Awesome job! ... Read more
Brian M. - 5 June 2025
We had a great experience renting a storage unit thanks to Erica. She was so patient, knowledgeable, and genuinely went above and beyond to help my mother-in-law with the perfect space. Her friendly demeanor made everything a breeze! ... Read more
Mark V. - 31 May 2025
Richard R. - 29 March 2025
I've only been with Extra Space Storage a few months I switched over from Public Storage I just want to tell you all out there if your not with Extra Space Storage please change over it was the greatest switch I did im saving compare to Public Storage about 300 not only that they give you a grace period Public Storage never gave me that right away got stuck with late fees and lien fees also the office employees are so nice and helpful and work with you here Briana was so kind and made everything easy for me Extra Space Storage thank you for your kind service I'm so glad I switched over Thank you ?? ... Read more
Jackie R. - 21 March 2025
We rented a storage unit at Extra Space Storage today and were incredibly impressed with the assistance we received from Briana. Her friendly and professional demeanor was on full display and made us feel very welcomed. Briana was incredibly helpful, my mother and I had many questions and she took the time to answer all of them thoroughly. Her patience and willingness to go the extra mile to ensure our storage needs were met was really the deciding factor in our choice in locations/business. We highly recommend her and this location! ... Read more
Justin K. - 26 January 2025
Martin P. - 9 January 2025
I had such a great experience with Extra Space Storage in Walnut, CA on Valley Blvd. Chris, Erica and Brianna were so wonderful and caring they all went out of their way to help me when I got a little stuck on my move out. I recommend this Storage location if you are looking for a clean place to store your belongings and if you also want awesome customer service. I will for sure use them again. Thank you Extra Space Storage and Have a Prosperous 2025! ... Read more
Christine N. - 1 January 2025

Overview

Located at 20671 Valley Blvd in Walnut, CA, this Extra Space Storage facility offers a variety of unit sizes, including small, medium, and large, to accommodate diverse storage needs. With 24-hour access, you can retrieve or store your belongings on your schedule, making it especially convenient for busy residents and businesses in this suburban Los Angeles area.

This facility provides standout features such as drive-up access for hassle-free loading and unloading, and indoor units for added protection from the elements. For those with larger items, there’s ample parking and RV storage, ideal for Walnut residents with recreational vehicles or additional vehicles needing secure space. Security is a priority here, with security cameras, gated access, and an onsite manager ensuring peace of mind.

Moving supplies are available for purchase onsite, and the facility offers modern conveniences like contactless renting and online payment. Perfect for families, students, or businesses in need of flexible storage, this Extra Space Storage facility stands out for its accessibility and customer-friendly approach.

Nearby Storage Units

$73 - $490

Public Storage - 21035 East Washington Avenue, Diamond Bar, CA

SELF STORAGE, CAR STORAGE, RV STORAGE, BOAT STORAGE
0.66 miles away
$53 - $840

Extra Space Storage - 19937 East Walnut Drive South, Walnut, CA

SELF STORAGE, CAR STORAGE, RV STORAGE
1.5 miles away
Contact for Details

Public Storage - 18711 Valley Blvd, La Puente, CA

SELF STORAGE
2.54 miles away
$68 - $1642

Extra Space Storage - 17925 Valley Blvd, La Puente, CA

SELF STORAGE, CAR STORAGE, RV STORAGE
3.43 miles away
$68 - $842

Extra Space Storage - 601 Ridgeway Street, Pomona, CA

SELF STORAGE, CAR STORAGE, RV STORAGE
4.7 miles away

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Frequently Asked Questions

There is a wide array of amenities available for the storage units that Extra Space Storage - 20671 Valley Blvd has to offer. These amenities include Indoor, 24 hour access, Drive-Up Access, Retail Available, Onsite Manager, Contactless Renting, Security Camera, Gate, Parking, Credit Cards Accepted, Online Payment and RV Storage. Most of these amenities can prove to be very useful depending on what you need to store. For example, climate-controlled units can come in handy for keeping sensitive items, drive-up access can make your loading and unloading process easier, and extra security measures will ensure your items are kept safe at all times.

The storage units offered by Extra Space Storage - 20671 Valley Blvd can satisfy all of your storage needs. Different sizes here range from 25 to 400 square feet. You can go for smaller units if you don't have a lot of items to store, while choosing a larger space is recommended in case you need to store a lot of furniture, bigger items or even vehicles.

The unit size that you should choose obviously depends on how much stuff you need to store. On the one hand, you should think of smaller units (5'x5' or 5'x10') as closets – they can be used to store chairs, lamps, moving boxes and sports equipment, along with smaller pieces of furniture, books and documents.

On the other hand, the 10'x10' and 10'x15' spaces are good for storing larger items of furniture, bicycles and a larger number of possessions. If you need even more space, then 10'x20' and 10'x30' units can easily accommodate the contents of an entire 3- or 4-bedroom house.

Storage units offered by Extra Space Storage - 20671 Valley Blvd come at a variety of prices, starting from $75 per month for typically smaller units. However, larger spaces can set you back up to $635 a month.

We know that when it comes to self storage, there is nothing more important than quickness and accessibility. Drive-up access is an extremely convenient amenity, as you can park your vehicle right next to your unit, making it significantly easier to load and unload the items you will use storage for. However, drive-up storage units tend to be outdoors, so you might consider indoor storage spaces with climate control if you're looking to keep temperature-sensitive items in peak condition.

Yes, you might, depending on what you need to put in storage. Climate-controlled spaces keep temperatures and humidity levels consistent all the time, which means they are perfect for storing sensitive items. Seeing that a whole host of things can be damaged by varying temperatures and excessive moisture, many people choose to rent climate-controlled units for personal items such as documents, photographs, paintings, collectibles, electronics, wooden furniture, antiques and even vehicles. If you're looking to store such items that are valuable to you, consider renting a climate-controlled unit!