Store your belongings at Extra Space Storage on 1229 US Highway 22 in Mountainside, NJ today! Our large selection of storage units, drive up access, drive up units, climate controlled units, electronic gate access, exceptional security, ADA compliant, deliveries accepted, non climate controlled units available, parking spaces, elevator access, solar site, convenient freeway access and helpful staff make finding the right self storage unit for you easy and hassle-free. Experience the professionalism, cleanliness, and commitment to exceptional customer service that Extra Space Storage is known for. Contact us today to reserve your storage unit or set up a time to stop by and take a tour of our facility!
Explore offerings from Extra Space Storage on 1229 US Highway 22 in Mountainside, with popular services available at this location.
3773 Services
9 items
Services
Self Storage
Extra Space Storage offers a wide range of secure self storage solutions for residential and commercial needs. Our storage units are rented on a month-to-month basis and come in a variety of sizes from 5x5 to 10x30 (with additional sizing available).
Online Payments
Extra Space Storage makes it easy to pay your storage rental bill online. Simply log into your account to access statements, make a payment, and more. You can make one-time online payments or even set up recurring payments.
Packing & Moving Supplies
Extra Space Storage sells packing and moving supplies like boxes, bubble wrap, packing tape, rope, moving kits, and more. We have all of the moving supplies you need for a successful move!
Drive Up Access
Drive-up access units at Extra Space Storage allow you to pull your vehicle directly next to your storage unit to easily load and unload items. Some locations even allow drive-up units to be used for vehicle storage for cars, motorcycles, and more.
Climate Controlling
Climate control at Extra Space Storage can help protect sensitive items from extreme temperatures. These units typically stay between 55 and 80 degrees year-round.
Electronic Gate Access
Extra Space Storage facilities with electronic gate access have a main gate or door that can only be opened with a code entered on an electronic keypad. Each customer is given a unique access code, allowing managers to see who's coming and going at all times.
Package Placement
Extra Space Storage facilities can accept package deliveries on behalf of customers. For more information about package acceptance and placement, contact our team!
Deliveries Accepted
Some Extra Space Storage locations allow deliveries to be accepted. With delivery acceptance, a staff member will be available to accept your mail and keep it in a secure place until you pick it up.
Solar Power
Extra Space Storage has solar installations at over 400 facilities to improve our sustainability efforts and reduce our consumption. Our solar power initiative is one of the many reasons why Extra Space Storage is the highest-rated self storage company in the U.S. for sustainability.
Reviews
4.9
386 reviews
5 stars
368
4 stars
9
3 stars2
2 stars1
1 star
6
KA
Kelmend Abdulai
5 days ago
5.0
Very friendly staff, handled all the paperwork quick and effortlessly. Nice clean units. All around good place to keep your stuff
KM
Kathy Miller
Jun 25, 2026
5.0
Always a pleasure storing at the Mountainside facility. This is my 3rd time storing my items here and the customer service is exceptional! A special thank you to Bre for always being available to answer any questions or concerns and for making sure this storage facility, the units and grounds are always up to par.
BD
Ben Dorner
Jun 1, 2026
2.0
Low marks because they literally DOUBLED my monthly rate after 2 months. Be prepared for a bait and switch...
The app is the only reason this isn't one star - it is great and makes self-service very easy.
*****
Response to the owner: I called prior to posting this review and requested that the rate be lowered. I was given a token ~5% off and told that was the best they could do. So rather than call again, I’ll just recommend here that you change your pricing practices.
JP
Jennifer Pulsfort
Jun 1, 2026
5.0
I have had such a great experience and the manager Brenna, is amazing! She’s so nice and is on top of everything ! I had questions about a rental and she was so helpful. Would absolutely recommend this location to anyone looking for a rental unit .
What a pleasant experience it’s been !
JD
Jeniffer Diego
May 29, 2026
5.0
She was very helpful and knew what she was offering.
Frequently Asked Questions About Extra Space Storage
What storage unit size do I need?
The best way to determine which storage option is right for you is with our helpful Storage Unit Size Guide! It will help you estimate how many boxes and non-packed items, such as furniture and appliances, you can fit into each storage unit.
What type of storage unit do I need?
Many factors determine your best storage solution. Do you want the convenience of a ground-floor unit? Do your belongings need climate control? What about vehicle storage? We have online resources to help you explore these options to find your ideal storage unit.
What are your storage unit prices?
Monthly rates can be found online and vary by facility, unit size, features, and local market. Please use our site search tools to find pricing at a facility near you.
What's the difference between office, access, and gate hours?
The office hours are the hours of operation for the property. During these hours the Store Manager will be available to assist you with your storage needs or moving and packing supplies. The gate hours are the hours of the property, and when your unit can be accessed.
Can I buy boxes or other packing products from Extra Space Storage?
Extra Space Storage offers a variety of moving and packing supplies online and at local facilities for purchase.
What areas does Extra Space Storage serve?
Extra Space Storage serves Springfield, Westfield, Cranford, New Providence, Garwood, and more.
What is the closest intersection to Extra Space Storage?
Extra Space Storage is located near the intersection of US Hwy 22 and Central Ave.
Do you have drive-up storage units?
Yes! Whether you’re moving, storing a vehicle, or using commercial storage, drive-up access is one of the best storage features available at Extra Space Storage! Because you can pull a vehicle right up to your unit, it makes moving large, heavy items—like furniture or equipment—in and out of your unit much easier.
Do you offer climate-controlled storage units?
Most Extra Space Storage facilities offer climate-controlled storage units as an option for anyone storing temperature sensitive items, but there are also standard storage units that don’t include climate control.
Do you offer RV storage solutions?
Yes! At Extra Space Storage we offer outdoor parking, covered parking, and indoor storage solutions for RVs of all sizes. Whether you’re leaving an RV in storage long term or simply need a place to park an RV between uses, we offer a flexible option with month-to-month leases so you can store for as long as you need.
What are the access hours for Extra Space Storage in Mountainside, NJ?
Extra Space Storage is open daily from 6:00 AM to 10:00 PM, allowing flexible access to your storage unit throughout the week.
What types of storage units does Extra Space Storage offer?
They offer a large selection of storage units including drive-up access units, climate-controlled units, and non-climate-controlled units to accommodate various storage needs.
Does Extra Space Storage provide packing and moving supplies?
Yes, you can purchase moving and packing supplies like boxes both online and at the facility to help with your storage needs.
Are there drive-up storage units available at Extra Space Storage?
Yes, drive-up access units are available, making it easier to move large or heavy items directly to your storage space.
Can I store my RV at Extra Space Storage?
Extra Space Storage offers outdoor parking, covered parking, and indoor storage solutions for RVs of all sizes with flexible month-to-month leases.
What payment options does Extra Space Storage accept?
They accept American Express, Apple Pay, cash, check, Discover, Mastercard, and Visa for your convenience.
Where is Extra Space Storage located?
The facility is located at 1229 US Highway 22, Mountainside, NJ 07092, near the intersection of US Hwy 22 and Central Ave.
Are there any nearby gyms or sports facilities close to Extra Space Storage?
Yes, Peak Sports Academy, Hoops There It Is, and Mountainside Racquet Club are nearby gyms and sports venues where you can work out before or after your storage visit.
What dining options are near Extra Space Storage?
Nearby restaurants include Spanish Tavern, Arirang Hibachi Steakhouse, and Alexus Steakhouse and Tavern, perfect for grabbing a meal when visiting the area.
How can nearby businesses like Life Storage - Mountainside complement my storage needs at Extra Space Storage?
Life Storage - Mountainside is a nearby self-storage facility that offers alternative options or additional storage space if needed, providing choices within the local area.
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