A+ Storage — Storage Units | Serving Sun Prairie businesses

We believe in providing the highest quality storage service in the industry. With our convenient locations, competitive pricing and helpful staff there's no doubt your storage experience will be top of the line. Our facilities are clean, secure, and easily accessible. Whether you need more room for stuff around the house, a place to put your business' extra office supplies, or a space to store your cars and boats, we've got you covered. Our Madison units, at Hwy 30 and 51 just off Nekoosa Trail and Commercial Avenue, offer several unit sizes, additional security, and climate control to ensure extra safe storage. Our Sun Prairie location can be found just off of Main Street on Commercial Avenue, and offers an affordable and centrally located facility with various unit sizes. Our De Forest facility, offering affordable, units of different sizes, is .5 miles north of the intersection of Hwy 19 and Hwy 51, and it is not far away from the Truax Airport.