Self Storage Units in O'Fallon, MO

The cheapest 5x5 unit published in O'Fallon is $40/month. Prices rise with unit size, and operators charge more for a climate-controlled unit than a standard one. 3 of the 21 facilities we list in O'Fallon publish a rate you can compare, and the rest we ring for you.

There are 21 self storage facilities in O'Fallon, Missouri listed on StorageAtlas, including national chains and local operators. 3 of them publish a monthly rate; every listing carries the address, amenities and contact details we hold.

A 5×5 unit (25 sq ft) holds a few boxes or seasonal items. A 10×10 (100 sq ft) fits a 1-bedroom apartment. A 10×20 (200 sq ft) suits a full 2–3 bedroom home. Most people over-estimate — stacking boxes and taking furniture apart usually lets a smaller unit do the job. Go a size up only if you have large items that cannot be dismantled, like an appliance or a sofa bed.

Yes — 3 of the 21 storage facilities in O'Fallon offer climate-controlled units. Climate control keeps temperatures stable year-round and is recommended for wood furniture, electronics, documents, artwork, and anything sensitive to heat or humidity.