Sullivan Self Storage


Reserve Online
or Call 1-855-846-5507
Sullivan Self Storage
W 2355 Highway 18
Sullivan, WI 53178
(855) 846-5507

Newer, Cleaner, Drier Units Security Cameras Throughout More Spacious, Up to 30 More Wide Selection: 10 x 10 to 10 x 50 Deliveries accepted Superior Lighting Throughout 24/7 accessibility to your unit On-site Office Friendly Customer Service

Office Hours
Sun Closed
Mon 8:00 AM - 4:00 PM
Tue 8:00 AM - 4:00 PM
Wed 8:00 AM - 4:00 PM
Thu 8:00 AM - 4:00 PM
Fri 8:00 AM - 4:00 PM
Sat Closed
Access Hours
Sun 12:00 AM - 11:59 PM
Mon 12:00 AM - 11:59 PM
Tue 12:00 AM - 11:59 PM
Wed 12:00 AM - 11:59 PM
Thu 12:00 AM - 11:59 PM
Fri 12:00 AM - 11:59 PM
Sat 12:00 AM - 11:59 PM

    Features

  • 24-hour access
  • Video cameras on site
  • Loading dock (truck access size-60ft)
  • Manager lives on-site
  • Email billing available
  • Rent due on 1st of each month
  • Auto-pay available
  • security deposit required (refundable)
  • Cash accepted
  • Checks accepted
  • Credit cards accepted (Visa, Mastercard, AMEX, Discover)
  • Allow 18-wheeler dropoff
  • Has 18-wheeler alleys
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
  • Sullivan Self Storage
Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage Sullivan Self Storage

10' x 10'
  • Roll up door
  • Vehicles permitted
  • Drive up
  • Outdoor access
$75.00
per month
Reserve Now
10' x 20'
  • Roll up door
  • Vehicles permitted
  • Drive up
  • Outdoor access
$105.00
per month
Reserve Now
10' x 30'
  • Roll up door
  • Vehicles permitted
  • Drive up
  • Outdoor access
$135.00
per month
Reserve Now
10' x 40'
  • Roll up door
  • Vehicles permitted
  • Drive up
  • Outdoor access
$165.00
per month
Reserve Now
Rating
Rating of 5.0
By
Amy
Review
Check in was easy and had a friendly staff. Everything was in order with the unit. Clean, dry, useable.
On
05/16/2026
Rating
Rating of 5.0
By
Mark R Scarce
Review
Everything went extremely smooth. very happy Customer
On
08/31/2025
Rating
Rating of 3.0
By
Bill White
Review
Hard to get vehicle in space due to space between the drive and floor of the space.
On
08/23/2025
Rating
Rating of 5.0
By
Brad
Review
Clean and convenient. Had the unit size that I needed.
On
01/18/2022
Rating
Rating of 3.0
By
Michael Schindler
Review
Office staff was very friendly. Facility is OK, BUT, three of the main flood lights that light the immediate area adjacent to my RV were NOT functioning!!! Additionally, flood lighting for the Business Signage was out too!!! Left message at office BUT have NOT received a return call several days later!
On
03/07/2021
Rating
Rating of 5.0
By
Matthew
Review
People were friendly, place is clean and looks To be well maintained.
On
11/03/2019
Rating
Rating of 5.0
By
MB
Review
Great staff, easy setup process, and easy access to the units.
On
09/03/2019
Rating
Rating of 5.0
By
craig
Review
The unit I got was brand new, but all others I saw were clean. The monthly rate is very competitive with units closer to Waukesha.
On
09/04/2018
Rating
Rating of 5.0
By
Sheila
Review
Owner was very accommodating and the price is great also
On
07/30/2016
Self Storage Frequently Asked Questions

What size storage unit do I need?


5' x 5' Storage Unit
It is approximately 25 square feet of space. This size typically holds the contents of one room or a large home closet. It is an excellent size to store seasonal items, garden tools, clothes, office supplies, suitcases, and miscellaneous boxes.

5' x 10' Storage Unit

It is approximately 50 square feet of space. This size typically holds the contents of one room or an office. You can store small amounts of furniture, chairs, a mattress, kitchen appliances, and boxes.

5' x 15' Storage Unit

It is approximately 75 square feet of space. This type of unit is suitable for the contents of a one-bedroom apartment, including major appliances.

10' x 10' Storage Unit
It is approximately 100 square feet of space, about the size of a standard one-car garage. It holds the furnishings of a one-bedroom or small two-bedroom apartment, including major appliances.

10' x 15' Storage Unit

It is approximately 150 square feet of space. It holds the furnishings of a large two-bedroom apartment or a smaller home. It is great for storing large furniture and appliances.

10' x 20' Storage Unit
It is approximately 200 square feet of space. It holds the entire contents of a three or four-bedroom home up to 2000 square feet. It can also hold compact full-size vehicles and boats.

10' x 25' Storage Unit

It holds the contents of a large home, roughly 4 or 5 bedrooms, including large furniture, garage items, and major appliances.


What is the height of the storage units?

Storage units are approximately 8 feet high.


Do I need to rent a climate controlled unit?

If you have delicate items such as musical instruments, computers, pictures, or antique wood furniture, it is recommended to select a climate-controlled unit. Climate-controlled storage units protect against rust, corrosion, mold, cracking, and warping.


What’s the difference between an indoor and an outdoor unit?
An outdoor storage unit has direct access and is usually drive-up accessible. An indoor unit is located within a building.


What items can't be put in a storage unit?

Most storage facilities will not let you store firearms, perishable items, liquids, illegal drugs, flammable and hazardous materials, live animals, or plants.


Are my items insured while being in a storage unit?

You are responsible for the items you store. The storage facility's insurance protects the location that houses the storage units, not the contents of individual units. If your homeowner's insurance doesn't cover your items, the facility manager can usually help you sign up with an insurance provider.


Can I use my renters insurance for a storage unit?

Anything your renter's insurance policy covers under usual conditions will be covered in your storage unit. Usually, renter's insurance will cover items in a unit up to 10% of your policy limits, but it does not include natural disasters. However, there may be exceptions to this, so check with your insurance company to see if you're covered.


What do I need to bring with me when to rent a unit?

You will need a government-issued photo ID (driver’s license, state ID, or passport) to complete your storage unit rental agreement.


Can I access my unit anytime I want?

Most storage locations are open 365 days a year, but access hours may vary. During access hours, usually between 6 am and 10 pm seven days a week, you can access your unit using your individual gate code. During office hours, company employees are available to answer questions and provide on-site support.


How long can I rent a unit?

Most rental contracts are month-to-month agreements billed in one-month increments. No long-term lease is required unless the customer requests it.

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