15 listings with more than 239 climate-controlled storage units in the Union, Franklin County, MO, area
Not sure what size you need? See our size guide!
Not sure what size you need? See our size guide!
A & E Storage - 4555 State Hwy 47, Washington, MO 63090
- Climate-Controlled
- Indoor
- Drive-Up Access
BestBox Storage - 736 Highway M, Villa Ridge, MO 63089
- Climate-Controlled
- Drive-Up Access
- Retail Available
$67Medium 10x10$63Large 10x20![Storage Units for Rent available at 2188 Highway A, Washington, MO 63090]()
Away Storage - 2188 Highway A, Washington, MO 63090
- Climate-Controlled
- Drive-Up Access
- Onsite Manager
![Storage Units for Rent available at 4255 Highway 47, Washington, MO 63090]()
Extra Space Storage - 4255 Highway 47, Washington, MO 63090
- Climate-Controlled
- Indoor
- Drive-Up Access
$33Small 5x5$81Medium 10x10$104Large 10x20![Storage Units for Rent available at 3047 West Osage Street, Pacific, MO 63069]()
Pacific Self Storage - 3047 West Osage Street, Pacific, MO 63069
- Climate-Controlled
- Indoor
- Drive-Up Access
$55Small 5x10$80Medium 10x10$75Large 10x40![Storage Units for Rent available at 306 West 4th Street, Eureka, MO 63025]()
Storage Rentals of America - 306 West 4th Street, Eureka, MO 63025
- Climate-Controlled
- Drive-Up Access
- Retail Available
$47Small 5x10$88Medium 10x10$164Large 10x20- No Photo Available
![Storage Units for Rent available at 1500 South Outer Road, Eureka, MO 63025]()
Lighthouse Storage - 1500 South Outer Road, Eureka, MO 63025
- Climate-Controlled
- Indoor
- Drive-Up Access
![Storage Units for Rent available at 1699 West 5th Street, Eureka, MO 63025]()
Storage Rentals of America - 1699 West 5th Street, Eureka, MO 63025
- Climate-Controlled
- Indoor
- Drive-Up Access
$40Small 5x10$64Medium 10x10$100Large 10x20![Storage Units for Rent available at 10 Strecker Road, Ellisville, MO 63011]()
Extra Space Storage - 10 Strecker Road, Ellisville, MO 63011
- Climate-Controlled
- Indoor
- 24 hour access
$23Small 5x5$213Medium 10x10$288Large 10x20![Storage Units for Rent available at 3555 Carol Park, House Springs, MO 63051]()
Carol Park Mini Storage - 3555 Carol Park, House Springs, MO 63051
- Climate-Controlled
- Indoor
- 24 hour access
![Storage Units for Rent available at 920 East Hwy N, Wentzville, MO 63385]()
STL Storage - 920 East Hwy N, Wentzville, MO 63385
- Climate-Controlled
- Indoor
- 24 hour access
$65Small 10x5$85Medium 10x10$40Large 10x20![Storage Units for Rent available at 101 Clarkson Road, Ellisville, MO 63011]()
Extra Space Storage - 101 Clarkson Road, Ellisville, MO 63011
- Climate-Controlled
- Indoor
- Drive-Up Access
$50Small 5x5$186Medium 10x10$358Large 20x10![Storage Units for Rent available at 16039 Ruck Road, Ellisville, MO 63021]()
A Storage Inn - 16039 Ruck Road, Ellisville, MO 63021
- Climate-Controlled
- Indoor
- 24 hour access
$34Small 5x5$88Medium 10x10![Storage Units for Rent available at 1160 Technology Drive, O'Fallon, MO 63368]()
Extra Space Storage - 1160 Technology Drive, O'fallon, MO 63368
- Climate-Controlled
- Indoor
- Drive-Up Access
$23Small 5x4$91Medium 10x10$283Large 10x20![Storage Units for Rent available at 16230 Truman Road, Ellisville, MO 63011]()
Public Storage - 16230 Truman Road, Ellisville, MO 63011
- Climate-Controlled
- Indoor
- Drive-Up Access
$14Small 4x5$126Medium 10x10$58Large 10x20
Trending storage types in Union:
Check out climate-controlled storage units in nearby cities:
- Washington, MO 9 mi away from $43/mo
- Eureka, MO 22 mi away from $85/mo
- Ellisville, MO 26 mi away from $14/mo
- Hillsboro, MO 27 mi away from $47/mo
- High Ridge, MO 27 mi away from $44/mo
- Valley Park, MO 30 mi away from $38/mo
- Murphy, MO 30 mi away from $71/mo
- Manchester, MO 30 mi away from $44/mo
- Fenton, MO 31 mi away from $37/mo
- Imperial, MO 32 mi away from $104/mo
- Arnold, MO 34 mi away from $46/mo
- Sunset Hills, MO 34 mi away from $33/mo
- Creve Coeur, MO 36 mi away from $55/mo
- Crestwood, MO 36 mi away from $40/mo
- Concord, MO 37 mi away from $53/mo
- Rock Hill, MO 38 mi away from $118/mo
- Brentwood, MO 39 mi away from $102/mo
- Affton, MO 39 mi away from $38/mo
Need more options? Browse storage units in other Missouri cities!
- Kansas City, MO from $20/mo
- Saint Louis, MO from $16/mo
- Springfield, MO from $43/mo
- Saint Charles, MO from $27/mo
- Independence, MO from $26/mo
- O'Fallon, MO from $16/mo
- Lee's Summit, MO from $49/mo
- Saint Peters, MO from $20/mo
- Blue Springs, MO from $23/mo
- Florissant, MO from $19/mo
- Chesterfield, MO from $25/mo
- Wentzville, MO from $36/mo
- Oakville, MO
- Ballwin, MO from $14/mo
- Liberty, MO from $43/mo
- Mehlville, MO from $98/mo
- Lake Saint Louis, MO from $26/mo
- Raytown, MO from $190/mo
- Kirkwood, MO from $52/mo
- Maryland Heights, MO
Average storage prices in Union (updated April 2026)
With prices starting at $10, you’ll find everything from compact locker-sized units to large spaces for cars, RVs or household goods. The average monthly rate for a storage unit in Union is $99.
Prices typically vary depending on the unit size and whether it’s climate controlled.
| Unit Size | Non-Climate-Controlled Units | Climate-Controlled Units |
|---|---|---|
| 5x5 | $26 | $26 |
| 5x10 | $50 | $50 |
| 10x10 | $81 | $81 |
| 10x15 | $91 | $91 |
| 10x20 | $75 | $75 |
| 10x30 | $130 | $130 |
| Average (all sizes) | $75 | $75 |
Note: Street rate data provided by Yardi Matrix.
Check out climate-controlled storage prices in Union, Franklin County, MO
Finding the right climate-controlled storage in Union, Franklin County, MO is crucial for protecting your valuable items. Renting a climate-controlled storage unit in Union hovers around $75 on average, but prices can vary significantly depending on unit size.
The monthly rate for a small, 5X5 climate-controlled unit starts at $26.
A large, 10x30 climate-controlled unit, on the other hand, can cost around $130.
Why you should use climate-controlled self storage?
Climate-controlled storage units maintain a consistent temperature throughout the year, regardless of the outside weather. This type of storage will protect your belongings from the damaging effects of extreme heat and cold.
Climate-controlled storage also manages humidity levels, preventing moisture-related damage like mold and mildew.
Whether you’re storing electronics, antiques, documents, or artwork, climate-controlled units offer the best environment to keep these sensitive items safe.
Frequently asked questions
How safe is self storage?
Most self storage facilities have some level of security, often including surveillance cameras and gated access. Popular security features include video surveillance and secure entry systems. Know that the facility comes with a strong security setup can give you confidence that your belongings are safe until you need them again.
What is climate-controlled storage?
Climate-controlled storage refers to a type of storage where temperature and humidity. The primary goal of climate control is to protect your belongings from environmental damage. Items that are sensitive or fragile, like furniture, appliances or antiques, aren't built to endure fluctuations in temperature and humidity. Without climate control, a standard self storage unit can expose these types of possessions to common damage like mold, mildew, rust, and corrosion.
What items cannot be put in storage?
Generally, avoid storing plants, food, live animals, hazardous and wet items among other. However, ask the facility you plan on renting from to find out the specific list of items that can't be put in storage.
Can I go to my storage unit anytime?
Access to your unit can vary depending on the facility. Some self storage locations offer 24/7 access, while others limit entry to specific operating hours that can vary. It's also a good idea to ask what their access schedule prior renting a unit to see if it matches your needs.
Methodology Note: Self storage data - including pricing and unit information - is analyzed and curated by RentCafe Self Storage. Statements reflect local market coverage and storage availability trends within the area.
Data sources: RentCafe Self Storage Research, Yardi Matrix, U.S. Census.