A+ Storage - 691 Commercial Avenue, Sun Prairie, WI 53590

4.9/5 - 137 Reviews
Location:
691 Commercial Avenue, Sun Prairie, WI 53590
Office hours:
24/7 ACCESS
  • Mon-Thu: 9 a.m. - 4 p.m.
  • Fri: 9 a.m. - 2 p.m.
24/7 ACCESS
(608) 837-5113

A+ Storage - 691 Commercial Avenue, Sun Prairie, WI 53590

  • Climate-Controlled

    Protect belongings from temperature changes and humidity

  • Indoor

    Units are located indoors for added protection and convenience

  • 24 hour access

    Access your unit any time, day or night, when available

    Not sure which size you need? Check our size guide to find the perfect fit.
    10x15 Self Storage 150 Sq. Ft.
    Climate-Controlled Power First Floor Access
    10x15 Self Storage 150 Sq. Ft.
    10x10 Self Storage 100 Sq. Ft.
    Climate-Controlled First Floor Access
    12x40 Self Storage 480 Sq. Ft.
    12x30 Self Storage 360 Sq. Ft.
    Climate-Controlled Power Drive-up Access First Floor Access Outdoor Access
    12x20 Self Storage 240 Sq. Ft.
    Climate-Controlled First Floor Access Outdoor Access
    12x20 Self Storage 240 Sq. Ft.
    11x30 Self Storage 330 Sq. Ft.
    10x40 Self Storage 400 Sq. Ft.
    10x30 Self Storage 300 Sq. Ft.
    Climate-Controlled Power Drive-up Access First Floor Access Outdoor Access
    10x30 Self Storage 300 Sq. Ft.
    10x25 Self Storage 250 Sq. Ft.
    Climate-Controlled Power First Floor Access
    10x25 Self Storage 250 Sq. Ft.
    10x20 Self Storage 200 Sq. Ft.
    Climate-Controlled Power First Floor Access
    10x20 Self Storage 200 Sq. Ft.
    No units are currently available.

    Amenities & features

    • Climate-Controlled
    • Indoor
    • 24 hour access
    • Drive-Up Access
    • Onsite Manager
    • Security Camera
    • Gate
    • Parking
    • Credit Cards Accepted
    • First Floor Access
    • Online Payment

    Customer reviews

    4.9/5
    Average rating
    137
    Number of reviews

    Read some helpful reviews of A+ Storage, shared by real renters with genuine experiences and honest opinions.

    Katie K. - 3 July 2026
    Airracer (. - 2 June 2026
    Jillian - 18 July 2025
    This is the best storage unit I have ever used to store my belongings. The staff is very friendly and helpful. Good vibes always...even on rainy days. I'm so happy I chose A+ storage. The onwer is great! ?????? ... Read more
    Brenda P. - 3 April 2025
    I'm just getting started with A+ Storage, and I'm impressed already. The gal at the front desk answered all my questions, walked me thru the steps and was wonderful to talk to. I'm so glad I found this place! ... Read more
    Laura C. - 6 November 2024
    Patrick H. - 10 October 2024
    I moved across the country and I needed a storage unit to put my belongings until I find my permanent home. Michelle helped me with the process and she is absolutely the best! A+Storage was the only easy process I had during my big move. Michelle went above and beyond, she was personable and kind. My friend and I were talking about her and saying “ wouldn’t that be great if everyone was like Michelle, or if she can show the other companies how to service their customers”. Thank you Michelle for making the stressful process easy for me! ... Read more
    D - 22 August 2023
    We rented a storage unit from A Plus Storage and had a great experience. The owner is easy to contact and work with. He was able to accommodate our schedule and helped us choose the right size of unit for our needs, at a fair price. Also our unit was very clean and dry. I would highly recommend using them. ... Read more
    Tammy P. - 18 August 2022

    About this facility

    Located at 691 Commercial Avenue in Sun Prairie, WI, this A+ Storage facility provides a variety of unit sizes, including small, medium, and large, to accommodate diverse storage needs. Whether you're decluttering your home, transitioning between residences, or seeking extra space for your belongings, you’ll find a suitable solution here. The facility offers climate-controlled units, ideal for protecting sensitive items from Wisconsin's varying temperatures and humidity.

    This facility is designed with convenience and security in mind. Features like 24-hour access, drive-up access, and parking make it simple and efficient to load and unload your items, while the presence of security cameras and an onsite manager ensures peace of mind when storing your possessions. For added ease, customers can handle payments through online payment or with credit cards.

    With its wide selection of unit sizes and valuable amenities, this A+ Storage facility is an excellent choice for residents, businesses, or anyone in Sun Prairie needing reliable, secure storage.

    Location & walkability

    This storage facility is in a highly accessible area with excellent walkability and public transit options.

    58

    out of 100

    Walk Score

    Somewhat Walkable

    Some errands can be accomplished on foot

    82

    out of 100

    Bike Score

    Very Bikeable

    Bike routes support regular local travel

    Walk Score®: 58, Bike Score®: 82

    Neighborhood highlights

    Located near shopping, car wash stations, and other local conveniences, this storage facility helps you make the most of every visit.

    • JW Remodeling

      Shopping 0.12 miles

    • Interiors by JW

      Shopping 0.14 miles

    • Java Jungle

      Food & Drinks 0.15 miles

    • Dairy Queen

      Food & Drinks 0.15 miles

    • Patio Pleasures

      Shopping 0.15 miles

    • Wendy's

      Food & Drinks 0.15 miles

    • Prairie Town Laundry & Dry Cleaners

      Shopping 0.15 miles

    • Sir Hobo's Restaurant

      Food & Drinks 0.16 miles

    • Badger Wash

      Services 0.16 miles

    Frequently Asked Questions

    The right storage unit size depends on what you plan to store and how much space you need to move around your items.

    5x5 or 5x10 units are great for smaller loads, such as chairs, lamps, small furniture pieces, boxes, books, and documents.

    10x10 or 10x15 units work well for larger furniture, bicycles, appliances, and the contents of a small apartment.

    10x20 or 10x30 units can typically fit the contents of a three-bedroom home, including large furniture and multiple appliances.

    If you’re unsure which size is best, a unit size calculator can help estimate the right fit based on the items you’re planning to store – helping you avoid paying for more space than you need.

    Climate-controlled storage units maintain consistent temperature and humidity levels, helping protect items from damage caused by heat, cold, or excess moisture.

    You may want climate control if you’re storing items that can be sensitive to temperature changes, such as furniture, clothing, appliances, paperwork, photographs, artwork, electronics, or wood and leather goods. These units are especially useful for long-term storage or in areas with hot summers, cold winters, or high humidity.

    If you’re storing durable items like tools or outdoor gear, a standard unit may be sufficient. When in doubt, climate control offers added protection and peace of mind.

    The facility at 691 Commercial Avenue offers 24/7 access, allowing you to visit your unit at your convenience.

    To open your storage unit door, start by unlocking it, whether it uses a traditional padlock or a Bluetooth-enabled smart lock. Once unlocked, grab the bottom handle and lift or pull up the roll-up door until it’s fully open.

    If you’re using the unit for the first time, make sure the lock is properly removed before opening the door to avoid damage.

    Security helps protect your belongings while they’re in storage and gives you peace of mind between visits. Many self storage facilities use a combination of features such as video surveillance, gated access, on-site management, and well-lit premises to help deter unauthorized access.

    At A+ Storage - 691 Commercial Avenue, available security amenities may include Security Camera, Gate, Onsite Manager, designed to help keep your items protected.

    Yes, most standard vehicles can be stored in self storage units. A 10x20 unit typically provides enough space for a car, while outdoor or designated parking areas may be available for larger vehicles.

    For safety reasons, most self storage facilities restrict certain items. These commonly include:

    • Hazardous, flammable, or toxic materials
    • Perishable food
    • Live plants or animals
    • Cash, firearms, or irreplaceable valuables

    Always check with the facility at 691 Commercial Avenue for specific restrictions and recommendations.

    Storage units for rent – StorageCafe
    Contact this property now:
    (608) 837-5113